1create_bitmap(3) Allegro manual create_bitmap(3)
2
3
4
6 create_bitmap - Creates a memory bitmap. Allegro game programming
7 library.
8
10 #include <allegro.h>
11
12
13 BITMAP *create_bitmap(int width, int height);
14
16 Creates a memory bitmap sized width by height. The bitmap will have
17 clipping turned on, and the clipping rectangle set to the full size of
18 the bitmap. The image memory will not be cleared, so it will probably
19 contain garbage: you should clear the bitmap before using it. This rou‐
20 tine always uses the global pixel format, as specified by calling
21 set_color_depth(). The minimum height of the BITMAP must be 1 and
22 width can't be negative. Example:
23
24 /* Create a 10 pixel tall bitmap, as wide as the screen. */
25 BITMAP *bmp = create_bitmap(SCREEN_W, 10);
26 if (!bmp)
27 abort_on_error("Couldn't create bitmap!");
28 /* Use the bitmap. */
29 ...
30 /* Destroy it when we don't need it any more. */
31 destroy_bitmap(bmp);
32
34 Returns a pointer to the created bitmap, or NULL if the bitmap could
35 not be created. Remember to free this bitmap later to avoid memory
36 leaks.
37
38
40 create_bitmap_ex(3), create_sub_bitmap(3), create_video_bitmap(3), cre‐
41 ate_system_bitmap(3), destroy_bitmap(3), set_color_depth(3), is_mem‐
42 ory_bitmap(3), clear_bitmap(3), clear_to_color(3)
43
44
45
46Allegro version 4.4.2 create_bitmap(3)