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create_video_bitmap.3alleg
Langue: en
Version: version 4.2.2 (debian - 07/07/09)
Section: 3 (Bibliothèques de fonctions)
NAME
create_video_bitmap - Creates a video memory bitmap. Allegro game programming 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 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.
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(3alleg), create_bitmap_ex(3alleg), create_system_bitmap(3alleg), create_sub_bitmap(3alleg), destroy_bitmap(3alleg), screen(3alleg), show_video_bitmap(3alleg), gfx_capabilities(3alleg), is_video_bitmap(3alleg), clear_bitmap(3alleg), clear_to_color(3alleg), ex3buf(3alleg), exaccel(3alleg), exflip(3alleg), exupdate(3alleg)Contenus ©2006-2024 Benjamin Poulain
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