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| <a href="#glib-Commandline-option-parser.synopsis" class="shortcut">Top</a> |
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| <a href="#glib-Commandline-option-parser.description" class="shortcut">Description</a> |
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| <h2><span class="refentrytitle"><a name="glib-Commandline-option-parser.top_of_page"></a>Commandline option parser</span></h2> |
| <p>Commandline option parser — parses commandline options</p> |
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| <div class="refsynopsisdiv" title="Synopsis"> |
| <a name="glib-Commandline-option-parser.synopsis"></a><h2>Synopsis</h2> |
| <pre class="synopsis"> |
| #include <glib.h> |
| |
| enum <a class="link" href="glib-Commandline-option-parser.html#GOptionError" title="enum GOptionError">GOptionError</a>; |
| #define <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ERROR:CAPS" title="G_OPTION_ERROR">G_OPTION_ERROR</a> |
| <a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> (<a class="link" href="glib-Commandline-option-parser.html#GOptionArgFunc" title="GOptionArgFunc ()">*GOptionArgFunc</a>) (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *option_name</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *value</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Error-Reporting.html#GError" title="GError"><span class="type">GError</span></a> **error</code></em>); |
| <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext">GOptionContext</a>; |
| <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="returnvalue">GOptionContext</span></a> * <a class="link" href="glib-Commandline-option-parser.html#g-option-context-new" title="g_option_context_new ()">g_option_context_new</a> (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *parameter_string</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-summary" title="g_option_context_set_summary ()">g_option_context_set_summary</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *summary</code></em>); |
| const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> * <a class="link" href="glib-Commandline-option-parser.html#g-option-context-get-summary" title="g_option_context_get_summary ()">g_option_context_get_summary</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-description" title="g_option_context_set_description ()">g_option_context_set_description</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *description</code></em>); |
| const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> * <a class="link" href="glib-Commandline-option-parser.html#g-option-context-get-description" title="g_option_context_get_description ()">g_option_context_get_description</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>); |
| const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> * (<a class="link" href="glib-Commandline-option-parser.html#GTranslateFunc" title="GTranslateFunc ()">*GTranslateFunc</a>) (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-translate-func" title="g_option_context_set_translate_func ()">g_option_context_set_translate_func</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GTranslateFunc" title="GTranslateFunc ()"><span class="type">GTranslateFunc</span></a> func</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Datasets.html#GDestroyNotify" title="GDestroyNotify ()"><span class="type">GDestroyNotify</span></a> destroy_notify</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-translation-domain" title="g_option_context_set_translation_domain ()">g_option_context_set_translation_domain</a> |
| (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *domain</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-context-free" title="g_option_context_free ()">g_option_context_free</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>); |
| <a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="glib-Commandline-option-parser.html#g-option-context-parse" title="g_option_context_parse ()">g_option_context_parse</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> *argc</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> ***argv</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Error-Reporting.html#GError" title="GError"><span class="type">GError</span></a> **error</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-help-enabled" title="g_option_context_set_help_enabled ()">g_option_context_set_help_enabled</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="type">gboolean</span></a> help_enabled</code></em>); |
| <a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="glib-Commandline-option-parser.html#g-option-context-get-help-enabled" title="g_option_context_get_help_enabled ()">g_option_context_get_help_enabled</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-ignore-unknown-options" title="g_option_context_set_ignore_unknown_options ()">g_option_context_set_ignore_unknown_options</a> |
| (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="type">gboolean</span></a> ignore_unknown</code></em>); |
| <a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="glib-Commandline-option-parser.html#g-option-context-get-ignore-unknown-options" title="g_option_context_get_ignore_unknown_options ()">g_option_context_get_ignore_unknown_options</a> |
| (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>); |
| <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> * <a class="link" href="glib-Commandline-option-parser.html#g-option-context-get-help" title="g_option_context_get_help ()">g_option_context_get_help</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="type">gboolean</span></a> main_help</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>); |
| enum <a class="link" href="glib-Commandline-option-parser.html#GOptionArg" title="enum GOptionArg">GOptionArg</a>; |
| enum <a class="link" href="glib-Commandline-option-parser.html#GOptionFlags" title="enum GOptionFlags">GOptionFlags</a>; |
| #define <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-REMAINING:CAPS" title="G_OPTION_REMAINING">G_OPTION_REMAINING</a> |
| <a class="link" href="glib-Commandline-option-parser.html#GOptionEntry" title="GOptionEntry">GOptionEntry</a>; |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-context-add-main-entries" title="g_option_context_add_main_entries ()">g_option_context_add_main_entries</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Commandline-option-parser.html#GOptionEntry" title="GOptionEntry"><span class="type">GOptionEntry</span></a> *entries</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *translation_domain</code></em>); |
| <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup">GOptionGroup</a>; |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-context-add-group" title="g_option_context_add_group ()">g_option_context_add_group</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-main-group" title="g_option_context_set_main_group ()">g_option_context_set_main_group</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>); |
| <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="returnvalue">GOptionGroup</span></a> * <a class="link" href="glib-Commandline-option-parser.html#g-option-context-get-main-group" title="g_option_context_get_main_group ()">g_option_context_get_main_group</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>); |
| <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="returnvalue">GOptionGroup</span></a> * <a class="link" href="glib-Commandline-option-parser.html#g-option-group-new" title="g_option_group_new ()">g_option_group_new</a> (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *name</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *description</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *help_description</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> user_data</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Datasets.html#GDestroyNotify" title="GDestroyNotify ()"><span class="type">GDestroyNotify</span></a> destroy</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-group-free" title="g_option_group_free ()">g_option_group_free</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-group-add-entries" title="g_option_group_add_entries ()">g_option_group_add_entries</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Commandline-option-parser.html#GOptionEntry" title="GOptionEntry"><span class="type">GOptionEntry</span></a> *entries</code></em>); |
| <a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> (<a class="link" href="glib-Commandline-option-parser.html#GOptionParseFunc" title="GOptionParseFunc ()">*GOptionParseFunc</a>) (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Error-Reporting.html#GError" title="GError"><span class="type">GError</span></a> **error</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-group-set-parse-hooks" title="g_option_group_set_parse_hooks ()">g_option_group_set_parse_hooks</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionParseFunc" title="GOptionParseFunc ()"><span class="type">GOptionParseFunc</span></a> pre_parse_func</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionParseFunc" title="GOptionParseFunc ()"><span class="type">GOptionParseFunc</span></a> post_parse_func</code></em>); |
| <span class="returnvalue">void</span> (<a class="link" href="glib-Commandline-option-parser.html#GOptionErrorFunc" title="GOptionErrorFunc ()">*GOptionErrorFunc</a>) (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Error-Reporting.html#GError" title="GError"><span class="type">GError</span></a> **error</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-group-set-error-hook" title="g_option_group_set_error_hook ()">g_option_group_set_error_hook</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionErrorFunc" title="GOptionErrorFunc ()"><span class="type">GOptionErrorFunc</span></a> error_func</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-group-set-translate-func" title="g_option_group_set_translate_func ()">g_option_group_set_translate_func</a> (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GTranslateFunc" title="GTranslateFunc ()"><span class="type">GTranslateFunc</span></a> func</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Datasets.html#GDestroyNotify" title="GDestroyNotify ()"><span class="type">GDestroyNotify</span></a> destroy_notify</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="glib-Commandline-option-parser.html#g-option-group-set-translation-domain" title="g_option_group_set_translation_domain ()">g_option_group_set_translation_domain</a> |
| (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *domain</code></em>); |
| </pre> |
| </div> |
| <div class="refsect1" title="Description"> |
| <a name="glib-Commandline-option-parser.description"></a><h2>Description</h2> |
| <p> |
| The GOption commandline parser is intended to be a simpler replacement for the |
| popt library. It supports short and long commandline options, as shown in the |
| following example: |
| </p> |
| <p> |
| <code class="literal">testtreemodel -r 1 --max-size 20 --rand --display=:1.0 -vb -- file1 file2</code> |
| </p> |
| <p> |
| The example demonstrates a number of features of the GOption commandline parser |
| </p> |
| <div class="itemizedlist"><ul class="itemizedlist" type="disc"> |
| <li class="listitem"><p> |
| Options can be single letters, prefixed by a single dash. Multiple |
| short options can be grouped behind a single dash. |
| </p></li> |
| <li class="listitem"><p> |
| Long options are prefixed by two consecutive dashes. |
| </p></li> |
| <li class="listitem"><p> |
| Options can have an extra argument, which can be a number, a string or a |
| filename. For long options, the extra argument can be appended with an |
| equals sign after the option name. |
| </p></li> |
| <li class="listitem"><p> |
| Non-option arguments are returned to the application as rest arguments. |
| </p></li> |
| <li class="listitem"><p> |
| An argument consisting solely of two dashes turns off further parsing, |
| any remaining arguments (even those starting with a dash) are returned |
| to the application as rest arguments. |
| </p></li> |
| </ul></div> |
| <p> |
| </p> |
| <p> |
| Another important feature of GOption is that it can automatically generate |
| nicely formatted help output. Unless it is explicitly turned off with |
| <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-help-enabled" title="g_option_context_set_help_enabled ()"><code class="function">g_option_context_set_help_enabled()</code></a>, GOption will recognize the |
| <code class="option">--help</code>, <code class="option">-?</code>, <code class="option">--help-all</code> |
| and <code class="option">--help-</code><em class="replaceable"><code>groupname</code></em> options |
| (where <em class="replaceable"><code>groupname</code></em> is the name of a <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a>) |
| and write a text similar to the one shown in the following example to stdout. |
| </p> |
| <p> |
| </p> |
| <div class="informalexample"><pre class="screen"> |
| Usage: |
| testtreemodel [OPTION...] - test tree model performance |
| |
| Help Options: |
| -h, --help Show help options |
| --help-all Show all help options |
| --help-gtk Show GTK+ Options |
| |
| Application Options: |
| -r, --repeats=N Average over N repetitions |
| -m, --max-size=M Test up to 2^M items |
| --display=DISPLAY X display to use |
| -v, --verbose Be verbose |
| -b, --beep Beep when done |
| --rand Randomize the data |
| </pre></div> |
| <p> |
| </p> |
| <p> |
| GOption groups options in <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a>s, which makes it easy to |
| incorporate options from multiple sources. The intended use for this is |
| to let applications collect option groups from the libraries it uses, |
| add them to their <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a>, and parse all options by a single call |
| to <a class="link" href="glib-Commandline-option-parser.html#g-option-context-parse" title="g_option_context_parse ()"><code class="function">g_option_context_parse()</code></a>. See <a href="http://library.gnome.org/devel/gtk/unstable/gtk-General.html#gtk-get-option-group"><code class="function">gtk_get_option_group()</code></a> for an example. |
| </p> |
| <p> |
| If an option is declared to be of type string or filename, GOption takes |
| care of converting it to the right encoding; strings are returned in UTF-8, |
| filenames are returned in the GLib filename encoding. Note that this only |
| works if <a class="link" href="glib-running.html#setlocale" title="Locale"><code class="function">setlocale()</code></a> has been called before <a class="link" href="glib-Commandline-option-parser.html#g-option-context-parse" title="g_option_context_parse ()"><code class="function">g_option_context_parse()</code></a>. |
| </p> |
| <p> |
| Here is a complete example of setting up GOption to parse the example |
| commandline above and produce the example help output. |
| </p> |
| <p> |
| </p> |
| <div class="informalexample"> |
| <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> |
| <tbody> |
| <tr> |
| <td class="listing_lines" align="right"><pre>1 |
| 2 |
| 3 |
| 4 |
| 5 |
| 6 |
| 7 |
| 8 |
| 9 |
| 10 |
| 11 |
| 12 |
| 13 |
| 14 |
| 15 |
| 16 |
| 17 |
| 18 |
| 19 |
| 20 |
| 21 |
| 22 |
| 23 |
| 24 |
| 25 |
| 26 |
| 27 |
| 28 |
| 29 |
| 30 |
| 31 |
| 32 |
| 33 |
| 34</pre></td> |
| <td class="listing_code"><pre class="programlisting"><span class="keyword">static</span><span class="normal"> <a href="glib-Basic-Types.html#gint">gint</a> repeats </span><span class="symbol">=</span><span class="normal"> </span><span class="number">2</span><span class="symbol">;</span> |
| <span class="keyword">static</span><span class="normal"> <a href="glib-Basic-Types.html#gint">gint</a> max_size </span><span class="symbol">=</span><span class="normal"> </span><span class="number">8</span><span class="symbol">;</span> |
| <span class="keyword">static</span><span class="normal"> <a href="glib-Basic-Types.html#gboolean">gboolean</a> verbose </span><span class="symbol">=</span><span class="normal"> <a href="glib-Standard-Macros.html#FALSE:CAPS">FALSE</a></span><span class="symbol">;</span> |
| <span class="keyword">static</span><span class="normal"> <a href="glib-Basic-Types.html#gboolean">gboolean</a> beep </span><span class="symbol">=</span><span class="normal"> <a href="glib-Standard-Macros.html#FALSE:CAPS">FALSE</a></span><span class="symbol">;</span> |
| <span class="keyword">static</span><span class="normal"> <a href="glib-Basic-Types.html#gboolean">gboolean</a> rand </span><span class="symbol">=</span><span class="normal"> <a href="glib-Standard-Macros.html#FALSE:CAPS">FALSE</a></span><span class="symbol">;</span> |
| |
| <span class="keyword">static</span><span class="normal"> <a href="glib-Commandline-option-parser.html#GOptionEntry">GOptionEntry</a> entries</span><span class="symbol">[]</span><span class="normal"> </span><span class="symbol">=</span><span class="normal"> </span> |
| <span class="cbracket">{</span> |
| <span class="normal"> </span><span class="cbracket">{</span><span class="normal"> </span><span class="string">"repeats"</span><span class="symbol">,</span><span class="normal"> </span><span class="string">'r'</span><span class="symbol">,</span><span class="normal"> </span><span class="number">0</span><span class="symbol">,</span><span class="normal"> <a href="glib-Commandline-option-parser.html#G-OPTION-ARG-INT:CAPS">G_OPTION_ARG_INT</a></span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&</span><span class="normal">repeats</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"Average over N repetitions"</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"N"</span><span class="normal"> </span><span class="cbracket">}</span><span class="symbol">,</span> |
| <span class="normal"> </span><span class="cbracket">{</span><span class="normal"> </span><span class="string">"max-size"</span><span class="symbol">,</span><span class="normal"> </span><span class="string">'m'</span><span class="symbol">,</span><span class="normal"> </span><span class="number">0</span><span class="symbol">,</span><span class="normal"> <a href="glib-Commandline-option-parser.html#G-OPTION-ARG-INT:CAPS">G_OPTION_ARG_INT</a></span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&</span><span class="normal">max_size</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"Test up to 2^M items"</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"M"</span><span class="normal"> </span><span class="cbracket">}</span><span class="symbol">,</span> |
| <span class="normal"> </span><span class="cbracket">{</span><span class="normal"> </span><span class="string">"verbose"</span><span class="symbol">,</span><span class="normal"> </span><span class="string">'v'</span><span class="symbol">,</span><span class="normal"> </span><span class="number">0</span><span class="symbol">,</span><span class="normal"> <a href="glib-Commandline-option-parser.html#G-OPTION-ARG-NONE:CAPS">G_OPTION_ARG_NONE</a></span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&</span><span class="normal">verbose</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"Be verbose"</span><span class="symbol">,</span><span class="normal"> <a href="glib-Standard-Macros.html#NULL:CAPS">NULL</a> </span><span class="cbracket">}</span><span class="symbol">,</span> |
| <span class="normal"> </span><span class="cbracket">{</span><span class="normal"> </span><span class="string">"beep"</span><span class="symbol">,</span><span class="normal"> </span><span class="string">'b'</span><span class="symbol">,</span><span class="normal"> </span><span class="number">0</span><span class="symbol">,</span><span class="normal"> <a href="glib-Commandline-option-parser.html#G-OPTION-ARG-NONE:CAPS">G_OPTION_ARG_NONE</a></span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&</span><span class="normal">beep</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"Beep when done"</span><span class="symbol">,</span><span class="normal"> <a href="glib-Standard-Macros.html#NULL:CAPS">NULL</a> </span><span class="cbracket">}</span><span class="symbol">,</span> |
| <span class="normal"> </span><span class="cbracket">{</span><span class="normal"> </span><span class="string">"rand"</span><span class="symbol">,</span><span class="normal"> </span><span class="number">0</span><span class="symbol">,</span><span class="normal"> </span><span class="number">0</span><span class="symbol">,</span><span class="normal"> <a href="glib-Commandline-option-parser.html#G-OPTION-ARG-NONE:CAPS">G_OPTION_ARG_NONE</a></span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&</span><span class="normal">rand</span><span class="symbol">,</span><span class="normal"> </span><span class="string">"Randomize the data"</span><span class="symbol">,</span><span class="normal"> <a href="glib-Standard-Macros.html#NULL:CAPS">NULL</a> </span><span class="cbracket">}</span><span class="symbol">,</span> |
| <span class="normal"> </span><span class="cbracket">{</span><span class="normal"> <a href="glib-Standard-Macros.html#NULL:CAPS">NULL</a> </span><span class="cbracket">}</span> |
| <span class="cbracket">}</span><span class="symbol">;</span> |
| |
| <span class="type">int</span><span class="normal"> </span> |
| <span class="function">main</span><span class="normal"> </span><span class="symbol">(</span><span class="type">int</span><span class="normal"> argc</span><span class="symbol">,</span><span class="normal"> </span><span class="type">char</span><span class="normal"> </span><span class="symbol">*</span><span class="normal">argv</span><span class="symbol">[])</span> |
| <span class="cbracket">{</span> |
| <span class="normal"> <a href="glib-Error-Reporting.html#GError">GError</a> </span><span class="symbol">*</span><span class="normal">error </span><span class="symbol">=</span><span class="normal"> <a href="glib-Standard-Macros.html#NULL:CAPS">NULL</a></span><span class="symbol">;</span> |
| <span class="normal"> <a href="glib-Commandline-option-parser.html#GOptionContext">GOptionContext</a> </span><span class="symbol">*</span><span class="normal">context</span><span class="symbol">;</span> |
| |
| <span class="normal"> context </span><span class="symbol">=</span><span class="normal"> </span><span class="function"><a href="glib-Commandline-option-parser.html#g-option-context-new">g_option_context_new</a></span><span class="normal"> </span><span class="symbol">(</span><span class="string">"- test tree model performance"</span><span class="symbol">);</span> |
| <span class="normal"> </span><span class="function"><a href="glib-Commandline-option-parser.html#g-option-context-add-main-entries">g_option_context_add_main_entries</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">context</span><span class="symbol">,</span><span class="normal"> entries</span><span class="symbol">,</span><span class="normal"> GETTEXT_PACKAGE</span><span class="symbol">);</span> |
| <span class="normal"> </span><span class="function"><a href="glib-Commandline-option-parser.html#g-option-context-add-group">g_option_context_add_group</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">context</span><span class="symbol">,</span><span class="normal"> </span><span class="function"><a href="http://library.gnome.org/devel/gtk/unstable/gtk-General.html#gtk-get-option-group">gtk_get_option_group</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal"><a href="glib-Standard-Macros.html#TRUE:CAPS">TRUE</a></span><span class="symbol">));</span> |
| <span class="normal"> </span><span class="keyword">if</span><span class="normal"> </span><span class="symbol">(!</span><span class="function"><a href="glib-Commandline-option-parser.html#g-option-context-parse">g_option_context_parse</a></span><span class="normal"> </span><span class="symbol">(</span><span class="normal">context</span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&</span><span class="normal">argc</span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&</span><span class="normal">argv</span><span class="symbol">,</span><span class="normal"> </span><span class="symbol">&</span><span class="normal">error</span><span class="symbol">))</span> |
| <span class="normal"> </span><span class="cbracket">{</span> |
| <span class="normal"> </span><span class="function"><a href="glib-Warnings-and-Assertions.html#g-print">g_print</a></span><span class="normal"> </span><span class="symbol">(</span><span class="string">"option parsing failed: %s</span><span class="specialchar">\n</span><span class="string">"</span><span class="symbol">,</span><span class="normal"> error</span><span class="symbol">-></span><span class="normal">message</span><span class="symbol">);</span> |
| <span class="normal"> </span><span class="function">exit</span><span class="normal"> </span><span class="symbol">(</span><span class="number">1</span><span class="symbol">);</span> |
| <span class="normal"> </span><span class="cbracket">}</span> |
| |
| <span class="normal"> </span><span class="comment">// ...</span> |
| |
| <span class="cbracket">}</span></pre></td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| |
| <p> |
| </p> |
| </div> |
| <div class="refsect1" title="Details"> |
| <a name="glib-Commandline-option-parser.details"></a><h2>Details</h2> |
| <div class="refsect2" title="enum GOptionError"> |
| <a name="GOptionError"></a><h3>enum GOptionError</h3> |
| <pre class="programlisting">typedef enum |
| { |
| G_OPTION_ERROR_UNKNOWN_OPTION, |
| G_OPTION_ERROR_BAD_VALUE, |
| G_OPTION_ERROR_FAILED |
| } GOptionError; |
| </pre> |
| <p> |
| Error codes returned by option parsing. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><a name="G-OPTION-ERROR-UNKNOWN-OPTION:CAPS"></a><span class="term"><code class="literal">G_OPTION_ERROR_UNKNOWN_OPTION</code></span></p></td> |
| <td>An option was not known to the parser. |
| This error will only be reported, if the parser hasn't been instructed |
| to ignore unknown options, see <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-ignore-unknown-options" title="g_option_context_set_ignore_unknown_options ()"><code class="function">g_option_context_set_ignore_unknown_options()</code></a>. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-ERROR-BAD-VALUE:CAPS"></a><span class="term"><code class="literal">G_OPTION_ERROR_BAD_VALUE</code></span></p></td> |
| <td>A value couldn't be parsed. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-ERROR-FAILED:CAPS"></a><span class="term"><code class="literal">G_OPTION_ERROR_FAILED</code></span></p></td> |
| <td>A <a class="link" href="glib-Commandline-option-parser.html#GOptionArgFunc" title="GOptionArgFunc ()"><span class="type">GOptionArgFunc</span></a> callback failed. |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2" title="G_OPTION_ERROR"> |
| <a name="G-OPTION-ERROR:CAPS"></a><h3>G_OPTION_ERROR</h3> |
| <pre class="programlisting">#define G_OPTION_ERROR (g_option_error_quark ()) |
| </pre> |
| <p> |
| Error domain for option parsing. Errors in this domain will |
| be from the <a class="link" href="glib-Commandline-option-parser.html#GOptionError" title="enum GOptionError"><span class="type">GOptionError</span></a> enumeration. See <a class="link" href="glib-Error-Reporting.html#GError" title="GError"><span class="type">GError</span></a> for information on |
| error domains. |
| </p> |
| </div> |
| <hr> |
| <div class="refsect2" title="GOptionArgFunc ()"> |
| <a name="GOptionArgFunc"></a><h3>GOptionArgFunc ()</h3> |
| <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> (*GOptionArgFunc) (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *option_name</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *value</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Error-Reporting.html#GError" title="GError"><span class="type">GError</span></a> **error</code></em>);</pre> |
| <p> |
| The type of function to be passed as callback for <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-CALLBACK:CAPS"><code class="literal">G_OPTION_ARG_CALLBACK</code></a> |
| options. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>option_name</code></em> :</span></p></td> |
| <td>The name of the option being parsed. This will be either a |
| single dash followed by a single letter (for a short name) or two dashes |
| followed by a long option name. |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>value</code></em> :</span></p></td> |
| <td>The value to be parsed. |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td> |
| <td>User data added to the <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> containing the option when it |
| was created with <a class="link" href="glib-Commandline-option-parser.html#g-option-group-new" title="g_option_group_new ()"><code class="function">g_option_group_new()</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td> |
| <td>A return location for errors. The error code <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ERROR-FAILED:CAPS"><code class="literal">G_OPTION_ERROR_FAILED</code></a> |
| is intended to be used for errors in <a class="link" href="glib-Commandline-option-parser.html#GOptionArgFunc" title="GOptionArgFunc ()"><span class="type">GOptionArgFunc</span></a> callbacks. |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if the option was successfully parsed, <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> if an error |
| occurred, in which case <em class="parameter"><code>error</code></em> should be set with <a class="link" href="glib-Error-Reporting.html#g-set-error" title="g_set_error ()"><code class="function">g_set_error()</code></a> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2" title="GOptionContext"> |
| <a name="GOptionContext"></a><h3>GOptionContext</h3> |
| <pre class="programlisting">typedef struct _GOptionContext GOptionContext;</pre> |
| <p> |
| A <span class="structname">GOptionContext</span> struct defines which options |
| are accepted by the commandline option parser. The struct has only private |
| fields and should not be directly accessed. |
| </p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_new ()"> |
| <a name="g-option-context-new"></a><h3>g_option_context_new ()</h3> |
| <pre class="programlisting"><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="returnvalue">GOptionContext</span></a> * g_option_context_new (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *parameter_string</code></em>);</pre> |
| <p> |
| Creates a new option context. |
| </p> |
| <p> |
| The <em class="parameter"><code>parameter_string</code></em> can serve multiple purposes. It can be used |
| to add descriptions for "rest" arguments, which are not parsed by |
| the <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a>, typically something like "FILES" or |
| "FILE1 FILE2...". If you are using <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-REMAINING:CAPS" title="G_OPTION_REMAINING"><span class="type">G_OPTION_REMAINING</span></a> for |
| collecting "rest" arguments, GLib handles this automatically by |
| using the <em class="parameter"><code>arg_description</code></em> of the corresponding <a class="link" href="glib-Commandline-option-parser.html#GOptionEntry" title="GOptionEntry"><span class="type">GOptionEntry</span></a> in |
| the usage summary. |
| </p> |
| <p> |
| Another usage is to give a short summary of the program |
| functionality, like " - frob the strings", which will be displayed |
| in the same line as the usage. For a longer description of the |
| program functionality that should be displayed as a paragraph |
| below the usage line, use <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-summary" title="g_option_context_set_summary ()"><code class="function">g_option_context_set_summary()</code></a>. |
| </p> |
| <p> |
| Note that the <em class="parameter"><code>parameter_string</code></em> is translated using the |
| function set with <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-translate-func" title="g_option_context_set_translate_func ()"><code class="function">g_option_context_set_translate_func()</code></a>, so |
| it should normally be passed untranslated. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>parameter_string</code></em> :</span></p></td> |
| <td>a string which is displayed in |
| the first line of <code class="option">--help</code> output, after the |
| usage summary |
| <code class="literal"><em class="replaceable"><code>programname</code></em> [OPTION...]</code> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> a newly created <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a>, which must be |
| freed with <a class="link" href="glib-Commandline-option-parser.html#g-option-context-free" title="g_option_context_free ()"><code class="function">g_option_context_free()</code></a> after use. |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_set_summary ()"> |
| <a name="g-option-context-set-summary"></a><h3>g_option_context_set_summary ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_context_set_summary (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *summary</code></em>);</pre> |
| <p> |
| Adds a string to be displayed in <code class="option">--help</code> output |
| before the list of options. This is typically a summary of the |
| program functionality. |
| </p> |
| <p> |
| Note that the summary is translated (see |
| <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-translate-func" title="g_option_context_set_translate_func ()"><code class="function">g_option_context_set_translate_func()</code></a> and |
| <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-translation-domain" title="g_option_context_set_translation_domain ()"><code class="function">g_option_context_set_translation_domain()</code></a>). |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>summary</code></em> :</span></p></td> |
| <td>a string to be shown in <code class="option">--help</code> output |
| before the list of options, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.12</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_get_summary ()"> |
| <a name="g-option-context-get-summary"></a><h3>g_option_context_get_summary ()</h3> |
| <pre class="programlisting">const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> * g_option_context_get_summary (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>);</pre> |
| <p> |
| Returns the summary. See <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-summary" title="g_option_context_set_summary ()"><code class="function">g_option_context_set_summary()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> the summary |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.12</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_set_description ()"> |
| <a name="g-option-context-set-description"></a><h3>g_option_context_set_description ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_context_set_description (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *description</code></em>);</pre> |
| <p> |
| Adds a string to be displayed in <code class="option">--help</code> output |
| after the list of options. This text often includes a bug reporting |
| address. |
| </p> |
| <p> |
| Note that the summary is translated (see |
| <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-translate-func" title="g_option_context_set_translate_func ()"><code class="function">g_option_context_set_translate_func()</code></a>). |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>description</code></em> :</span></p></td> |
| <td>a string to be shown in <code class="option">--help</code> output |
| after the list of options, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.12</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_get_description ()"> |
| <a name="g-option-context-get-description"></a><h3>g_option_context_get_description ()</h3> |
| <pre class="programlisting">const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> * g_option_context_get_description (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>);</pre> |
| <p> |
| Returns the description. See <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-description" title="g_option_context_set_description ()"><code class="function">g_option_context_set_description()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> the description |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.12</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="GTranslateFunc ()"> |
| <a name="GTranslateFunc"></a><h3>GTranslateFunc ()</h3> |
| <pre class="programlisting">const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> * (*GTranslateFunc) (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *str</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre> |
| <p> |
| The type of functions which are used to translate user-visible |
| strings, for <code class="option">--help</code> output. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>str</code></em> :</span></p></td> |
| <td>the untranslated string |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td> |
| <td>user data specified when installing the function, e.g. |
| in <a class="link" href="glib-Commandline-option-parser.html#g-option-group-set-translate-func" title="g_option_group_set_translate_func ()"><code class="function">g_option_group_set_translate_func()</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> a translation of the string for the current locale. |
| The returned string is owned by GLib and must not be freed. |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_set_translate_func ()"> |
| <a name="g-option-context-set-translate-func"></a><h3>g_option_context_set_translate_func ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_context_set_translate_func (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GTranslateFunc" title="GTranslateFunc ()"><span class="type">GTranslateFunc</span></a> func</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Datasets.html#GDestroyNotify" title="GDestroyNotify ()"><span class="type">GDestroyNotify</span></a> destroy_notify</code></em>);</pre> |
| <p> |
| Sets the function which is used to translate the contexts |
| user-visible strings, for <code class="option">--help</code> output. |
| If <em class="parameter"><code>func</code></em> is <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>, strings are not translated. |
| </p> |
| <p> |
| Note that option groups have their own translation functions, |
| this function only affects the <em class="parameter"><code>parameter_string</code></em> (see <a class="link" href="glib-Commandline-option-parser.html#g-option-context-new" title="g_option_context_new ()"><code class="function">g_option_context_new()</code></a>), |
| the summary (see <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-summary" title="g_option_context_set_summary ()"><code class="function">g_option_context_set_summary()</code></a>) and the description |
| (see <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-description" title="g_option_context_set_description ()"><code class="function">g_option_context_set_description()</code></a>). |
| </p> |
| <p> |
| If you are using <code class="function">gettext()</code>, you only need to set the translation |
| domain, see <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-translation-domain" title="g_option_context_set_translation_domain ()"><code class="function">g_option_context_set_translation_domain()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>func</code></em> :</span></p></td> |
| <td>the <a class="link" href="glib-Commandline-option-parser.html#GTranslateFunc" title="GTranslateFunc ()"><span class="type">GTranslateFunc</span></a>, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td> |
| <td>user data to pass to <em class="parameter"><code>func</code></em>, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>destroy_notify</code></em> :</span></p></td> |
| <td>a function which gets called to free <em class="parameter"><code>data</code></em>, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.12</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_set_translation_domain ()"> |
| <a name="g-option-context-set-translation-domain"></a><h3>g_option_context_set_translation_domain ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_context_set_translation_domain |
| (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *domain</code></em>);</pre> |
| <p> |
| A convenience function to use <code class="function">gettext()</code> for translating |
| user-visible strings. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>domain</code></em> :</span></p></td> |
| <td>the domain to use |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.12</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_free ()"> |
| <a name="g-option-context-free"></a><h3>g_option_context_free ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_context_free (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>);</pre> |
| <p> |
| Frees context and all the groups which have been |
| added to it. |
| </p> |
| <p> |
| Please note that parsed arguments need to be freed separately (see |
| <a class="link" href="glib-Commandline-option-parser.html#GOptionEntry" title="GOptionEntry"><span class="type">GOptionEntry</span></a>). |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody><tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr></tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_parse ()"> |
| <a name="g-option-context-parse"></a><h3>g_option_context_parse ()</h3> |
| <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> g_option_context_parse (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> *argc</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> ***argv</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Error-Reporting.html#GError" title="GError"><span class="type">GError</span></a> **error</code></em>);</pre> |
| <p> |
| Parses the command line arguments, recognizing options |
| which have been added to <em class="parameter"><code>context</code></em>. A side-effect of |
| calling this function is that <a class="link" href="glib-Miscellaneous-Utility-Functions.html#g-set-prgname" title="g_set_prgname ()"><code class="function">g_set_prgname()</code></a> will be |
| called. |
| </p> |
| <p> |
| If the parsing is successful, any parsed arguments are |
| removed from the array and <em class="parameter"><code>argc</code></em> and <em class="parameter"><code>argv</code></em> are updated |
| accordingly. A '--' option is stripped from <em class="parameter"><code>argv</code></em> |
| unless there are unparsed options before and after it, |
| or some of the options after it start with '-'. In case |
| of an error, <em class="parameter"><code>argc</code></em> and <em class="parameter"><code>argv</code></em> are left unmodified. |
| </p> |
| <p> |
| If automatic <code class="option">--help</code> support is enabled |
| (see <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-help-enabled" title="g_option_context_set_help_enabled ()"><code class="function">g_option_context_set_help_enabled()</code></a>), and the |
| <em class="parameter"><code>argv</code></em> array contains one of the recognized help options, |
| this function will produce help output to stdout and |
| call <code class="literal">exit (0)</code>. |
| </p> |
| <p> |
| Note that function depends on the |
| <a class="link" href="glib-running.html#setlocale" title="Locale">current locale</a> for |
| automatic character set conversion of string and filename |
| arguments. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>argc</code></em> :</span></p></td> |
| <td>a pointer to the number of command line arguments |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>argv</code></em> :</span></p></td> |
| <td>a pointer to the array of command line arguments |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td> |
| <td>a return location for errors |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if the parsing was successful, |
| <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> if an error occurred |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_set_help_enabled ()"> |
| <a name="g-option-context-set-help-enabled"></a><h3>g_option_context_set_help_enabled ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_context_set_help_enabled (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="type">gboolean</span></a> help_enabled</code></em>);</pre> |
| <p> |
| Enables or disables automatic generation of <code class="option">--help</code> |
| output. By default, <a class="link" href="glib-Commandline-option-parser.html#g-option-context-parse" title="g_option_context_parse ()"><code class="function">g_option_context_parse()</code></a> recognizes |
| <code class="option">--help</code>, <code class="option">-h</code>, |
| <code class="option">-?</code>, <code class="option">--help-all</code> |
| and <code class="option">--help-</code><em class="replaceable"><code>groupname</code></em> and creates |
| suitable output to stdout. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>help_enabled</code></em> :</span></p></td> |
| <td> |
| <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> to enable <code class="option">--help</code>, <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> to disable it |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_get_help_enabled ()"> |
| <a name="g-option-context-get-help-enabled"></a><h3>g_option_context_get_help_enabled ()</h3> |
| <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> g_option_context_get_help_enabled (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>);</pre> |
| <p> |
| Returns whether automatic <code class="option">--help</code> generation |
| is turned on for <em class="parameter"><code>context</code></em>. See <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-help-enabled" title="g_option_context_set_help_enabled ()"><code class="function">g_option_context_set_help_enabled()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if automatic help generation is turned on. |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_set_ignore_unknown_options ()"> |
| <a name="g-option-context-set-ignore-unknown-options"></a><h3>g_option_context_set_ignore_unknown_options ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_context_set_ignore_unknown_options |
| (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="type">gboolean</span></a> ignore_unknown</code></em>);</pre> |
| <p> |
| Sets whether to ignore unknown options or not. If an argument is |
| ignored, it is left in the <em class="parameter"><code>argv</code></em> array after parsing. By default, |
| <a class="link" href="glib-Commandline-option-parser.html#g-option-context-parse" title="g_option_context_parse ()"><code class="function">g_option_context_parse()</code></a> treats unknown options as error. |
| </p> |
| <p> |
| This setting does not affect non-option arguments (i.e. arguments |
| which don't start with a dash). But note that GOption cannot reliably |
| determine whether a non-option belongs to a preceding unknown option. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>ignore_unknown</code></em> :</span></p></td> |
| <td> |
| <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> to ignore unknown options, <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> to produce |
| an error when unknown options are met |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_get_ignore_unknown_options ()"> |
| <a name="g-option-context-get-ignore-unknown-options"></a><h3>g_option_context_get_ignore_unknown_options ()</h3> |
| <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> g_option_context_get_ignore_unknown_options |
| (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>);</pre> |
| <p> |
| Returns whether unknown options are ignored or not. See |
| <a class="link" href="glib-Commandline-option-parser.html#g-option-context-set-ignore-unknown-options" title="g_option_context_set_ignore_unknown_options ()"><code class="function">g_option_context_set_ignore_unknown_options()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if unknown options are ignored. |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_get_help ()"> |
| <a name="g-option-context-get-help"></a><h3>g_option_context_get_help ()</h3> |
| <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="returnvalue">gchar</span></a> * g_option_context_get_help (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="type">gboolean</span></a> main_help</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>);</pre> |
| <p> |
| Returns a formatted, translated help text for the given context. |
| To obtain the text produced by <code class="option">--help</code>, call |
| <code class="literal">g_option_context_get_help (context, TRUE, NULL)</code>. |
| To obtain the text produced by <code class="option">--help-all</code>, call |
| <code class="literal">g_option_context_get_help (context, FALSE, NULL)</code>. |
| To obtain the help text for an option group, call |
| <code class="literal">g_option_context_get_help (context, FALSE, group)</code>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>main_help</code></em> :</span></p></td> |
| <td>if <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a>, only include the main group |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td> |
| <td>the <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> to create help for, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> A newly allocated string containing the help text |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.14</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="enum GOptionArg"> |
| <a name="GOptionArg"></a><h3>enum GOptionArg</h3> |
| <pre class="programlisting">typedef enum |
| { |
| G_OPTION_ARG_NONE, |
| G_OPTION_ARG_STRING, |
| G_OPTION_ARG_INT, |
| G_OPTION_ARG_CALLBACK, |
| G_OPTION_ARG_FILENAME, |
| G_OPTION_ARG_STRING_ARRAY, |
| G_OPTION_ARG_FILENAME_ARRAY, |
| G_OPTION_ARG_DOUBLE, |
| G_OPTION_ARG_INT64 |
| } GOptionArg; |
| </pre> |
| <p> |
| The <a class="link" href="glib-Commandline-option-parser.html#GOptionArg" title="enum GOptionArg"><span class="type">GOptionArg</span></a> enum values determine which type of extra argument the |
| options expect to find. If an option expects an extra argument, it |
| can be specified in several ways; with a short option: |
| <code class="option">-x arg</code>, with a long option: <code class="option">--name arg</code> |
| or combined in a single argument: <code class="option">--name=arg</code>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><a name="G-OPTION-ARG-NONE:CAPS"></a><span class="term"><code class="literal">G_OPTION_ARG_NONE</code></span></p></td> |
| <td>No extra argument. This is useful for simple flags. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-ARG-STRING:CAPS"></a><span class="term"><code class="literal">G_OPTION_ARG_STRING</code></span></p></td> |
| <td>The option takes a string argument. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-ARG-INT:CAPS"></a><span class="term"><code class="literal">G_OPTION_ARG_INT</code></span></p></td> |
| <td>The option takes an integer argument. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-ARG-CALLBACK:CAPS"></a><span class="term"><code class="literal">G_OPTION_ARG_CALLBACK</code></span></p></td> |
| <td>The option provides a callback to parse the |
| extra argument. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-ARG-FILENAME:CAPS"></a><span class="term"><code class="literal">G_OPTION_ARG_FILENAME</code></span></p></td> |
| <td>The option takes a filename as argument. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-ARG-STRING-ARRAY:CAPS"></a><span class="term"><code class="literal">G_OPTION_ARG_STRING_ARRAY</code></span></p></td> |
| <td>The option takes a string argument, multiple |
| uses of the option are collected into an array of strings. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-ARG-FILENAME-ARRAY:CAPS"></a><span class="term"><code class="literal">G_OPTION_ARG_FILENAME_ARRAY</code></span></p></td> |
| <td>The option takes a filename as argument, |
| multiple uses of the option are collected into an array of strings. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-ARG-DOUBLE:CAPS"></a><span class="term"><code class="literal">G_OPTION_ARG_DOUBLE</code></span></p></td> |
| <td>The option takes a double argument. The argument |
| can be formatted either for the user's locale or for the "C" locale. Since 2.12 |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-ARG-INT64:CAPS"></a><span class="term"><code class="literal">G_OPTION_ARG_INT64</code></span></p></td> |
| <td>The option takes a 64-bit integer. Like <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-INT:CAPS"><code class="literal">G_OPTION_ARG_INT</code></a> |
| but for larger numbers. The number can be in decimal base, or in hexadecimal |
| (when prefixed with <code class="literal">0x</code>, for example, <code class="literal">0xffffffff</code>). |
| Since 2.12 |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2" title="enum GOptionFlags"> |
| <a name="GOptionFlags"></a><h3>enum GOptionFlags</h3> |
| <pre class="programlisting">typedef enum |
| { |
| G_OPTION_FLAG_HIDDEN = 1 << 0, |
| G_OPTION_FLAG_IN_MAIN = 1 << 1, |
| G_OPTION_FLAG_REVERSE = 1 << 2, |
| G_OPTION_FLAG_NO_ARG = 1 << 3, |
| G_OPTION_FLAG_FILENAME = 1 << 4, |
| G_OPTION_FLAG_OPTIONAL_ARG = 1 << 5, |
| G_OPTION_FLAG_NOALIAS = 1 << 6 |
| } GOptionFlags; |
| </pre> |
| <p> |
| Flags which modify individual options. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><a name="G-OPTION-FLAG-HIDDEN:CAPS"></a><span class="term"><code class="literal">G_OPTION_FLAG_HIDDEN</code></span></p></td> |
| <td>The option doesn't appear in <code class="option">--help</code> |
| output. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-FLAG-IN-MAIN:CAPS"></a><span class="term"><code class="literal">G_OPTION_FLAG_IN_MAIN</code></span></p></td> |
| <td>The option appears in the main section of the |
| <code class="option">--help</code> output, even if it is defined in a group. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-FLAG-REVERSE:CAPS"></a><span class="term"><code class="literal">G_OPTION_FLAG_REVERSE</code></span></p></td> |
| <td>For options of the <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-NONE:CAPS"><code class="literal">G_OPTION_ARG_NONE</code></a> kind, this flag |
| indicates that the sense of the option is reversed. |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-FLAG-NO-ARG:CAPS"></a><span class="term"><code class="literal">G_OPTION_FLAG_NO_ARG</code></span></p></td> |
| <td>For options of the <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-CALLBACK:CAPS"><code class="literal">G_OPTION_ARG_CALLBACK</code></a> kind, |
| this flag indicates that the callback does not take any argument |
| (like a <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-NONE:CAPS"><code class="literal">G_OPTION_ARG_NONE</code></a> option). Since 2.8 |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-FLAG-FILENAME:CAPS"></a><span class="term"><code class="literal">G_OPTION_FLAG_FILENAME</code></span></p></td> |
| <td>For options of the <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-CALLBACK:CAPS"><code class="literal">G_OPTION_ARG_CALLBACK</code></a> |
| kind, this flag indicates that the argument should be passed to the |
| callback in the GLib filename encoding rather than UTF-8. Since 2.8 |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-FLAG-OPTIONAL-ARG:CAPS"></a><span class="term"><code class="literal">G_OPTION_FLAG_OPTIONAL_ARG</code></span></p></td> |
| <td>For options of the <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-CALLBACK:CAPS"><code class="literal">G_OPTION_ARG_CALLBACK</code></a> |
| kind, this flag indicates that the argument supply is optional. If no argument |
| is given then data of <a class="link" href="glib-Commandline-option-parser.html#GOptionParseFunc" title="GOptionParseFunc ()"><code class="literal">GOptionParseFunc</code></a> will be set to NULL. Since 2.8 |
| </td> |
| </tr> |
| <tr> |
| <td><p><a name="G-OPTION-FLAG-NOALIAS:CAPS"></a><span class="term"><code class="literal">G_OPTION_FLAG_NOALIAS</code></span></p></td> |
| <td>This flag turns off the automatic conflict resolution |
| which prefixes long option names with <code class="literal">groupname-</code> if |
| there is a conflict. This option should only be used in situations where |
| aliasing is necessary to model some legacy commandline interface. It is |
| not safe to use this option, unless all option groups are under your |
| direct control. Since 2.8. |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2" title="G_OPTION_REMAINING"> |
| <a name="G-OPTION-REMAINING:CAPS"></a><h3>G_OPTION_REMAINING</h3> |
| <pre class="programlisting">#define G_OPTION_REMAINING "" |
| </pre> |
| <p> |
| If a long option in the main group has this name, it is not treated as a |
| regular option. Instead it collects all non-option arguments which would |
| otherwise be left in <code class="literal">argv</code>. The option must be of type |
| <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-CALLBACK:CAPS"><code class="literal">G_OPTION_ARG_CALLBACK</code></a>, <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-STRING-ARRAY:CAPS"><code class="literal">G_OPTION_ARG_STRING_ARRAY</code></a> |
| or <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-FILENAME-ARRAY:CAPS"><code class="literal">G_OPTION_ARG_FILENAME_ARRAY</code></a>. |
| </p> |
| <p> |
| Using <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-REMAINING:CAPS" title="G_OPTION_REMAINING"><span class="type">G_OPTION_REMAINING</span></a> instead of simply scanning <code class="literal">argv</code> |
| for leftover arguments has the advantage that GOption takes care of |
| necessary encoding conversions for strings or filenames. |
| </p> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="GOptionEntry"> |
| <a name="GOptionEntry"></a><h3>GOptionEntry</h3> |
| <pre class="programlisting">typedef struct { |
| const gchar *long_name; |
| gchar short_name; |
| gint flags; |
| |
| GOptionArg arg; |
| gpointer arg_data; |
| |
| const gchar *description; |
| const gchar *arg_description; |
| } GOptionEntry; |
| </pre> |
| <p> |
| A <span class="structname">GOptionEntry</span> defines a single option. |
| To have an effect, they must be added to a <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> with |
| <a class="link" href="glib-Commandline-option-parser.html#g-option-context-add-main-entries" title="g_option_context_add_main_entries ()"><code class="function">g_option_context_add_main_entries()</code></a> or <a class="link" href="glib-Commandline-option-parser.html#g-option-group-add-entries" title="g_option_group_add_entries ()"><code class="function">g_option_group_add_entries()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term">const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GOptionEntry.long-name"></a>long_name</code></em>;</span></p></td> |
| <td>The long name of an option can be used to specify it |
| in a commandline as --<em class="replaceable"><code>long_name</code></em>. Every |
| option must have a long name. To resolve conflicts if multiple |
| option groups contain the same long name, it is also possible to |
| specify the option as |
| --<em class="replaceable"><code>groupname</code></em>-<em class="replaceable"><code>long_name</code></em>. |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> <em class="structfield"><code><a name="GOptionEntry.short-name"></a>short_name</code></em>;</span></p></td> |
| <td>If an option has a short name, it can be specified |
| -<em class="replaceable"><code>short_name</code></em> in a commandline. <em class="parameter"><code>short_name</code></em> must be |
| a printable ASCII character different from '-', or zero if the option has no |
| short name. |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="glib-Basic-Types.html#gint" title="gint"><span class="type">gint</span></a> <em class="structfield"><code><a name="GOptionEntry.flags"></a>flags</code></em>;</span></p></td> |
| <td>Flags from <a class="link" href="glib-Commandline-option-parser.html#GOptionFlags" title="enum GOptionFlags"><span class="type">GOptionFlags</span></a>. |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="glib-Commandline-option-parser.html#GOptionArg" title="enum GOptionArg"><span class="type">GOptionArg</span></a> <em class="structfield"><code><a name="GOptionEntry.arg"></a>arg</code></em>;</span></p></td> |
| <td>The type of the option, as a <a class="link" href="glib-Commandline-option-parser.html#GOptionArg" title="enum GOptionArg"><span class="type">GOptionArg</span></a>. |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> <em class="structfield"><code><a name="GOptionEntry.arg-data"></a>arg_data</code></em>;</span></p></td> |
| <td>If the <em class="parameter"><code>arg</code></em> type is <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-CALLBACK:CAPS"><code class="literal">G_OPTION_ARG_CALLBACK</code></a>, then <em class="parameter"><code>arg_data</code></em> must |
| point to a <a class="link" href="glib-Commandline-option-parser.html#GOptionArgFunc" title="GOptionArgFunc ()"><span class="type">GOptionArgFunc</span></a> callback function, which will be called to handle |
| the extra argument. Otherwise, <em class="parameter"><code>arg_data</code></em> is a pointer to a location to store |
| the value, the required type of the location depends on the <em class="parameter"><code>arg</code></em> type: |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-NONE:CAPS"><code class="literal">G_OPTION_ARG_NONE</code></a></span></p></td> |
| <td><p><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><code class="literal">gboolean</code></a></p></td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-STRING:CAPS"><code class="literal">G_OPTION_ARG_STRING</code></a></span></p></td> |
| <td><p><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><code class="literal">gchar</code></a>*</p></td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-INT:CAPS"><code class="literal">G_OPTION_ARG_INT</code></a></span></p></td> |
| <td><p><a class="link" href="glib-Basic-Types.html#gint" title="gint"><code class="literal">gint</code></a></p></td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-FILENAME:CAPS"><code class="literal">G_OPTION_ARG_FILENAME</code></a></span></p></td> |
| <td><p><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><code class="literal">gchar</code></a>*</p></td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-STRING-ARRAY:CAPS"><code class="literal">G_OPTION_ARG_STRING_ARRAY</code></a></span></p></td> |
| <td><p><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><code class="literal">gchar</code></a>**</p></td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-FILENAME-ARRAY:CAPS"><code class="literal">G_OPTION_ARG_FILENAME_ARRAY</code></a></span></p></td> |
| <td><p><a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><code class="literal">gchar</code></a>**</p></td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-DOUBLE:CAPS"><code class="literal">G_OPTION_ARG_DOUBLE</code></a></span></p></td> |
| <td><p><a class="link" href="glib-Basic-Types.html#gdouble" title="gdouble"><code class="literal">gdouble</code></a></p></td> |
| </tr> |
| </tbody> |
| </table></div> |
| If <em class="parameter"><code>arg</code></em> type is <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-STRING:CAPS"><code class="literal">G_OPTION_ARG_STRING</code></a> or <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-FILENAME:CAPS"><code class="literal">G_OPTION_ARG_FILENAME</code></a> the location |
| will contain a newly allocated string if the option was given. That string |
| needs to be freed by the callee using <a class="link" href="glib-Memory-Allocation.html#g-free" title="g_free ()"><code class="function">g_free()</code></a>. Likewise if <em class="parameter"><code>arg</code></em> type is |
| <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-STRING-ARRAY:CAPS"><code class="literal">G_OPTION_ARG_STRING_ARRAY</code></a> or <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-FILENAME-ARRAY:CAPS"><code class="literal">G_OPTION_ARG_FILENAME_ARRAY</code></a>, the data should |
| be freed using <a class="link" href="glib-String-Utility-Functions.html#g-strfreev" title="g_strfreev ()"><code class="function">g_strfreev()</code></a>. |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term">const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GOptionEntry.description"></a>description</code></em>;</span></p></td> |
| <td>the description for the option in <code class="option">--help</code> |
| output. The <em class="parameter"><code>description</code></em> is translated using the <em class="parameter"><code>translate_func</code></em> of the |
| group, see <a class="link" href="glib-Commandline-option-parser.html#g-option-group-set-translation-domain" title="g_option_group_set_translation_domain ()"><code class="function">g_option_group_set_translation_domain()</code></a>. |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term">const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *<em class="structfield"><code><a name="GOptionEntry.arg-description"></a>arg_description</code></em>;</span></p></td> |
| <td>The placeholder to use for the extra argument parsed |
| by the option in <code class="option">--help</code> |
| output. The <em class="parameter"><code>arg_description</code></em> is translated using the <em class="parameter"><code>translate_func</code></em> of the |
| group, see <a class="link" href="glib-Commandline-option-parser.html#g-option-group-set-translation-domain" title="g_option_group_set_translation_domain ()"><code class="function">g_option_group_set_translation_domain()</code></a>. |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_add_main_entries ()"> |
| <a name="g-option-context-add-main-entries"></a><h3>g_option_context_add_main_entries ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_context_add_main_entries (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Commandline-option-parser.html#GOptionEntry" title="GOptionEntry"><span class="type">GOptionEntry</span></a> *entries</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *translation_domain</code></em>);</pre> |
| <p> |
| A convenience function which creates a main group if it doesn't |
| exist, adds the <em class="parameter"><code>entries</code></em> to it and sets the translation domain. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>entries</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of <a class="link" href="glib-Commandline-option-parser.html#GOptionEntry" title="GOptionEntry"><span class="type">GOptionEntry</span></a>s |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>translation_domain</code></em> :</span></p></td> |
| <td>a translation domain to use for translating |
| the <code class="option">--help</code> output for the options in <em class="parameter"><code>entries</code></em> |
| with <code class="function">gettext()</code>, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="GOptionGroup"> |
| <a name="GOptionGroup"></a><h3>GOptionGroup</h3> |
| <pre class="programlisting">typedef struct _GOptionGroup GOptionGroup;</pre> |
| <p> |
| A <span class="structname">GOptionGroup</span> struct defines the options in a single |
| group. The struct has only private fields and should not be directly accessed. |
| </p> |
| <p> |
| All options in a group share the same translation function. Libraries which |
| need to parse commandline options are expected to provide a function for |
| getting a <span class="structname">GOptionGroup</span> holding their options, which |
| the application can then add to its <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a>. |
| </p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_add_group ()"> |
| <a name="g-option-context-add-group"></a><h3>g_option_context_add_group ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_context_add_group (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>);</pre> |
| <p> |
| Adds a <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> to the <em class="parameter"><code>context</code></em>, so that parsing with <em class="parameter"><code>context</code></em> |
| will recognize the options in the group. Note that the group will |
| be freed together with the context when <a class="link" href="glib-Commandline-option-parser.html#g-option-context-free" title="g_option_context_free ()"><code class="function">g_option_context_free()</code></a> is |
| called, so you must not free the group yourself after adding it |
| to a context. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td> |
| <td>the group to add |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_set_main_group ()"> |
| <a name="g-option-context-set-main-group"></a><h3>g_option_context_set_main_group ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_context_set_main_group (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>);</pre> |
| <p> |
| Sets a <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> as main group of the <em class="parameter"><code>context</code></em>. |
| This has the same effect as calling <a class="link" href="glib-Commandline-option-parser.html#g-option-context-add-group" title="g_option_context_add_group ()"><code class="function">g_option_context_add_group()</code></a>, |
| the only difference is that the options in the main group are |
| treated differently when generating <code class="option">--help</code> output. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td> |
| <td>the group to set as main group |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_context_get_main_group ()"> |
| <a name="g-option-context-get-main-group"></a><h3>g_option_context_get_main_group ()</h3> |
| <pre class="programlisting"><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="returnvalue">GOptionGroup</span></a> * g_option_context_get_main_group (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>);</pre> |
| <p> |
| Returns a pointer to the main group of <em class="parameter"><code>context</code></em>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> the main group of <em class="parameter"><code>context</code></em>, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> if <em class="parameter"><code>context</code></em> doesn't |
| have a main group. Note that group belongs to <em class="parameter"><code>context</code></em> and should |
| not be modified or freed. |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_group_new ()"> |
| <a name="g-option-group-new"></a><h3>g_option_group_new ()</h3> |
| <pre class="programlisting"><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="returnvalue">GOptionGroup</span></a> * g_option_group_new (<em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *name</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *description</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *help_description</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> user_data</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Datasets.html#GDestroyNotify" title="GDestroyNotify ()"><span class="type">GDestroyNotify</span></a> destroy</code></em>);</pre> |
| <p> |
| Creates a new <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td> |
| <td>the name for the option group, this is used to provide |
| help for the options in this group with <code class="option">--help-</code><em class="parameter"><code>name</code></em> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>description</code></em> :</span></p></td> |
| <td>a description for this group to be shown in |
| <code class="option">--help</code>. This string is translated using the translation |
| domain or translation function of the group |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>help_description</code></em> :</span></p></td> |
| <td>a description for the <code class="option">--help-</code><em class="parameter"><code>name</code></em> option. |
| This string is translated using the translation domain or translation function |
| of the group |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td> |
| <td>user data that will be passed to the pre- and post-parse hooks, |
| the error hook and to callbacks of <a class="link" href="glib-Commandline-option-parser.html#G-OPTION-ARG-CALLBACK:CAPS"><code class="literal">G_OPTION_ARG_CALLBACK</code></a> options, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>destroy</code></em> :</span></p></td> |
| <td>a function that will be called to free <em class="parameter"><code>user_data</code></em>, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> a newly created option group. It should be added |
| to a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> or freed with <a class="link" href="glib-Commandline-option-parser.html#g-option-group-free" title="g_option_group_free ()"><code class="function">g_option_group_free()</code></a>. |
| |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_group_free ()"> |
| <a name="g-option-group-free"></a><h3>g_option_group_free ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_group_free (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>);</pre> |
| <p> |
| Frees a <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a>. Note that you must <span class="emphasis"><em>not</em></span> |
| free groups which have been added to a <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody><tr> |
| <td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> |
| </td> |
| </tr></tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_group_add_entries ()"> |
| <a name="g-option-group-add-entries"></a><h3>g_option_group_add_entries ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_group_add_entries (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Commandline-option-parser.html#GOptionEntry" title="GOptionEntry"><span class="type">GOptionEntry</span></a> *entries</code></em>);</pre> |
| <p> |
| Adds the options specified in <em class="parameter"><code>entries</code></em> to <em class="parameter"><code>group</code></em>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>entries</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>-terminated array of <a class="link" href="glib-Commandline-option-parser.html#GOptionEntry" title="GOptionEntry"><span class="type">GOptionEntry</span></a>s |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="GOptionParseFunc ()"> |
| <a name="GOptionParseFunc"></a><h3>GOptionParseFunc ()</h3> |
| <pre class="programlisting"><a class="link" href="glib-Basic-Types.html#gboolean" title="gboolean"><span class="returnvalue">gboolean</span></a> (*GOptionParseFunc) (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Error-Reporting.html#GError" title="GError"><span class="type">GError</span></a> **error</code></em>);</pre> |
| <p> |
| The type of function that can be called before and after parsing. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>The active <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td> |
| <td>The group to which the function belongs |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td> |
| <td>User data added to the <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> containing the option when it |
| was created with <a class="link" href="glib-Commandline-option-parser.html#g-option-group-new" title="g_option_group_new ()"><code class="function">g_option_group_new()</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td> |
| <td>A return location for error details |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td> <a class="link" href="glib-Standard-Macros.html#TRUE:CAPS" title="TRUE"><code class="literal">TRUE</code></a> if the function completed successfully, <a class="link" href="glib-Standard-Macros.html#FALSE:CAPS" title="FALSE"><code class="literal">FALSE</code></a> if an error |
| occurred, in which case <em class="parameter"><code>error</code></em> should be set with <a class="link" href="glib-Error-Reporting.html#g-set-error" title="g_set_error ()"><code class="function">g_set_error()</code></a> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_group_set_parse_hooks ()"> |
| <a name="g-option-group-set-parse-hooks"></a><h3>g_option_group_set_parse_hooks ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_group_set_parse_hooks (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionParseFunc" title="GOptionParseFunc ()"><span class="type">GOptionParseFunc</span></a> pre_parse_func</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionParseFunc" title="GOptionParseFunc ()"><span class="type">GOptionParseFunc</span></a> post_parse_func</code></em>);</pre> |
| <p> |
| Associates two functions with <em class="parameter"><code>group</code></em> which will be called |
| from <a class="link" href="glib-Commandline-option-parser.html#g-option-context-parse" title="g_option_context_parse ()"><code class="function">g_option_context_parse()</code></a> before the first option is parsed |
| and after the last option has been parsed, respectively. |
| </p> |
| <p> |
| Note that the user data to be passed to <em class="parameter"><code>pre_parse_func</code></em> and |
| <em class="parameter"><code>post_parse_func</code></em> can be specified when constructing the group |
| with <a class="link" href="glib-Commandline-option-parser.html#g-option-group-new" title="g_option_group_new ()"><code class="function">g_option_group_new()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>pre_parse_func</code></em> :</span></p></td> |
| <td>a function to call before parsing, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>post_parse_func</code></em> :</span></p></td> |
| <td>a function to call after parsing, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="GOptionErrorFunc ()"> |
| <a name="GOptionErrorFunc"></a><h3>GOptionErrorFunc ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> (*GOptionErrorFunc) (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> *context</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Error-Reporting.html#GError" title="GError"><span class="type">GError</span></a> **error</code></em>);</pre> |
| <p> |
| The type of function to be used as callback when a parse error occurs. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>context</code></em> :</span></p></td> |
| <td>The active <a class="link" href="glib-Commandline-option-parser.html#GOptionContext" title="GOptionContext"><span class="type">GOptionContext</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td> |
| <td>The group to which the function belongs |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td> |
| <td>User data added to the <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> containing the option when it |
| was created with <a class="link" href="glib-Commandline-option-parser.html#g-option-group-new" title="g_option_group_new ()"><code class="function">g_option_group_new()</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>error</code></em> :</span></p></td> |
| <td>The <a class="link" href="glib-Error-Reporting.html#GError" title="GError"><span class="type">GError</span></a> containing details about the parse error |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_group_set_error_hook ()"> |
| <a name="g-option-group-set-error-hook"></a><h3>g_option_group_set_error_hook ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_group_set_error_hook (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionErrorFunc" title="GOptionErrorFunc ()"><span class="type">GOptionErrorFunc</span></a> error_func</code></em>);</pre> |
| <p> |
| Associates a function with <em class="parameter"><code>group</code></em> which will be called |
| from <a class="link" href="glib-Commandline-option-parser.html#g-option-context-parse" title="g_option_context_parse ()"><code class="function">g_option_context_parse()</code></a> when an error occurs. |
| </p> |
| <p> |
| Note that the user data to be passed to <em class="parameter"><code>error_func</code></em> can be |
| specified when constructing the group with <a class="link" href="glib-Commandline-option-parser.html#g-option-group-new" title="g_option_group_new ()"><code class="function">g_option_group_new()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>error_func</code></em> :</span></p></td> |
| <td>a function to call when an error occurs |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_group_set_translate_func ()"> |
| <a name="g-option-group-set-translate-func"></a><h3>g_option_group_set_translate_func ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_group_set_translate_func (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GTranslateFunc" title="GTranslateFunc ()"><span class="type">GTranslateFunc</span></a> func</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Basic-Types.html#gpointer" title="gpointer"><span class="type">gpointer</span></a> data</code></em>, |
| <em class="parameter"><code><a class="link" href="glib-Datasets.html#GDestroyNotify" title="GDestroyNotify ()"><span class="type">GDestroyNotify</span></a> destroy_notify</code></em>);</pre> |
| <p> |
| Sets the function which is used to translate user-visible |
| strings, for <code class="option">--help</code> output. Different |
| groups can use different <a class="link" href="glib-Commandline-option-parser.html#GTranslateFunc" title="GTranslateFunc ()"><span class="type">GTranslateFunc</span></a>s. If <em class="parameter"><code>func</code></em> |
| is <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a>, strings are not translated. |
| </p> |
| <p> |
| If you are using <code class="function">gettext()</code>, you only need to set the translation |
| domain, see <a class="link" href="glib-Commandline-option-parser.html#g-option-group-set-translation-domain" title="g_option_group_set_translation_domain ()"><code class="function">g_option_group_set_translation_domain()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>func</code></em> :</span></p></td> |
| <td>the <a class="link" href="glib-Commandline-option-parser.html#GTranslateFunc" title="GTranslateFunc ()"><span class="type">GTranslateFunc</span></a>, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>data</code></em> :</span></p></td> |
| <td>user data to pass to <em class="parameter"><code>func</code></em>, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>destroy_notify</code></em> :</span></p></td> |
| <td>a function which gets called to free <em class="parameter"><code>data</code></em>, or <a class="link" href="glib-Standard-Macros.html#NULL:CAPS" title="NULL"><code class="literal">NULL</code></a> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| <hr> |
| <div class="refsect2" title="g_option_group_set_translation_domain ()"> |
| <a name="g-option-group-set-translation-domain"></a><h3>g_option_group_set_translation_domain ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> g_option_group_set_translation_domain |
| (<em class="parameter"><code><a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> *group</code></em>, |
| <em class="parameter"><code>const <a class="link" href="glib-Basic-Types.html#gchar" title="gchar"><span class="type">gchar</span></a> *domain</code></em>);</pre> |
| <p> |
| A convenience function to use <code class="function">gettext()</code> for translating |
| user-visible strings. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>group</code></em> :</span></p></td> |
| <td>a <a class="link" href="glib-Commandline-option-parser.html#GOptionGroup" title="GOptionGroup"><span class="type">GOptionGroup</span></a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>domain</code></em> :</span></p></td> |
| <td>the domain to use |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| <p class="since">Since 2.6</p> |
| </div> |
| </div> |
| </div> |
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