| .TH IM_INVALIDATE 3 "5 December 2006" |
| .SH NAME |
| im_invalidate \- flush caches related to an image |
| .SH SYNOPSIS |
| .B #include <vips/vips.h> |
| |
| .B void im_invalidate( IMAGE *im ) |
| |
| .SH DESCRIPTION |
| .B im_invalidate(3) |
| marks all caches related to the image as invalid and requring recalculation. |
| It needs to be called if an image changes after being made: for example, after |
| a paint action, or perhaps after a new frame has arrived from a video source. |
| |
| Any invalidate callbacks registered on any of the affected images are |
| triggered. |
| |
| .SH SEE\ ALSO |
| im_prepare(3), im_region_buffer(3), im_add_invalidate_callback(3). |
