create_bitmap_ex - Creates a memory bitmap specifying color depth. Allegro game programming library.

       Creates a bitmap in a specific color depth (8, 15, 16, 24 or 32 bits per pixel). Example:

          /* Create screen sized bitmap in 32 bits per pixel. */
          BITMAP *bmp = create_bitmap_ex(32, SCREEN_W, SCREEN_H);
          if (!bmp)
             abort_on_error("Couldn't create bitmap!");
          /* Use the bitmap. */
          ...
          /* Destroy it when we don't need it any more. */
          destroy_bitmap(bmp);

       create_bitmap_ex - Creates a memory bitmap specifying color depth. Allegro game programming library.

       Returns  a  pointer  to  the created bitmap, or NULL if the bitmap could not be created. Remember to free
       this bitmap later to avoid memory leaks.

create_bitmap(3alleg4),             create_sub_bitmap(3alleg4),             create_video_bitmap(3alleg4),
       create_system_bitmap(3alleg4), destroy_bitmap(3alleg4), is_memory_bitmap(3alleg4), clear_bitmap(3alleg4),
       clear_to_color(3alleg4), ex12bit(3alleg4), exlights(3alleg4), exrgbhsv(3alleg4), extrans(3alleg4)

Allegro                                           version 4.4.3                        create_bitmap_ex(3alleg4)

#include<allegro.h>BITMAP*create_bitmap_ex(intcolor_depth,intwidth,intheight);