BITMAP - Stores the contents of a bitmap. Allegro game programming library.

          int w, h;               - size of the bitmap in pixels
          int clip;               - non-zero if clipping is turned on
          int cl, cr, ct, cb;     - clip rectangle left, right, top,
                                    and bottom
          unsigned char *line[];  - pointers to the start of each line

       There  is  some  other  stuff  in the structure as well, but it is liable to change and you shouldn't use
       anything except the above. The `w' and `h' fields can be used to obtain the size of an existing bitmap:

          bmp = load_bitmap("file.bmp", pal);
          allegro_message("Bitmap size: (%dx%d)\n", bmp->w, bmp->h);

       The clipping rectangle is inclusive on the left and top (0 allows drawing to position 0) but exclusive on
       the right and bottom (10 allows drawing to position 9, but not to 10). Note this is not the  same  format
       as  that  of the clipping API, which takes inclusive coordinates for all four corners.  All the values of
       this structure should be regarded as read-only, with the exception of the line  field,  whose  access  is
       described  in  depth  in the "Direct access to video memory" section of the manual. If you want to modify
       the clipping region, please refrain from changing this structure.  Use set_clip_rect() instead.

       BITMAP - Stores the contents of a bitmap. Allegro game programming library.

create_bitmap(3alleg4),   set_clip_rect(3alleg4),    bitmap_color_depth(3alleg4),    RLE_SPRITE(3alleg4),
       COMPILED_SPRITE(3alleg4)

Allegro                                           version 4.4.3                                  BITMAP(3alleg4)

#include<allegro.h>typedefstructBITMAP