create_video_bitmap - Creates a video memory bitmap. Allegro game programming
library.
#include <allegro.h>
BITMAP *create_video_bitmap(int width, int height);
Allocates a video memory bitmap of the specified size. This can be used to
allocate offscreen video memory for storing source graphics ready for a
hardware accelerated blitting operation, or to create multiple video memory
pages which can then be displayed by calling show_video_bitmap(). Read the
introduction of this chapter for a comparison with other types of bitmaps and
other specific details.
Warning: video memory bitmaps are usually allocated from the same
space as the screen bitmap, so they may overlap with it; it is therefore not
a good idea to use the global screen at the same time as any surfaces
returned by this function.
Returns a pointer to the bitmap on success, or NULL if you have run out of video
ram. Remember to destroy this bitmap before any subsequent call to
set_gfx_mode().
create_bitmap(3), create_bitmap_ex(3),
create_system_bitmap(3), create_sub_bitmap(3),
destroy_bitmap(3), screen(3), show_video_bitmap(3),
gfx_capabilities(3), is_video_bitmap(3), clear_bitmap(3),
clear_to_color(3), ex3buf(3), exaccel(3),
exflip(3), exupdate(3)