set_color_depth - Sets the global pixel color depth. Allegro game programming
library.
#include <allegro.h>
void set_color_depth(int depth);
Sets the pixel format to be used by subsequent calls to set_gfx_mode() and
create_bitmap(). Valid depths are 8 (the default), 15, 16, 24, and 32 bits.
Example:
set_color_depth(32);
if (set_gfx_mode(GFX_AUTODETECT, 640, 480, 0, 0) != 0) {
abort_on_error("Couldn't set a 32 bit color resolution");
}
Note that the screen color depth won't change until the next successful call to
set_gfx_mode().
get_color_depth(3), set_gfx_mode(3),
set_color_conversion(3), makecol(3), getr(3),
desktop_color_depth(3)