FreeBSD Manual Pages
create_video_bitmap(3) Allegro manual create_video_bitmap(3) NAME create_video_bitmap - Creates a video memory bitmap. Allegro game pro- gramming library. SYNOPSIS #include <allegro.h> BITMAP *create_video_bitmap(int width, int height); DESCRIPTION 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 com- parison 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. RETURN VALUE 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(). SEE ALSO create_bitmap(3), create_bitmap_ex(3), create_system_bitmap(3), cre- ate_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) Allegro version 4.4.3 create_video_bitmap(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | SEE ALSO
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