FreeBSD Manual Pages
al_create_sub_bitmap(3) Library Functions Manual al_create_sub_bitmap(3) NAME al_create_sub_bitmap - Allegro 5 API SYNOPSIS #include <allegro5/allegro.h> ALLEGRO_BITMAP *al_create_sub_bitmap(ALLEGRO_BITMAP *parent, int x, int y, int w, int h) DESCRIPTION Creates a sub-bitmap of the parent, at the specified coordinates and of the specified size. A sub-bitmap is a bitmap that shares drawing memory with a pre-existing (parent) bitmap, but possibly with a different size and clip- ping settings. The sub-bitmap may originate off or extend past the parent bitmap. See the discussion in al_get_backbuffer(3) about using sub-bitmaps of the backbuffer. The parent bitmap's clipping rectangles are ignored. If a sub-bitmap was not or cannot be created then NULL is returned. When you are done with using the sub-bitmap you must call al_de- stroy_bitmap(3) on it to free any resources allocated for it. Note that destroying parents of sub-bitmaps will not destroy the sub-bitmaps; instead the sub-bitmaps become invalid and should no longer be used for drawing - they still must be destroyed with al_destroy_bitmap(3) however. It does not matter whether you destroy a sub-bitmap before or af- ter its parent otherwise. SEE ALSO al_create_bitmap(3) Allegro reference manual al_create_sub_bitmap(3)
NAME | SYNOPSIS | DESCRIPTION | SEE ALSO
Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=al_create_sub_bitmap&sektion=3&manpath=FreeBSD+Ports+15.1.quarterly>