desktop_color_depth(3) Allegro manual desktop_color_depth(3)NAMEdesktop_color_depth - Finds out the desktop color depth. Allegro game
programming library.
SYNOPSIS
#include <allegro.h>
int desktop_color_depth();
DESCRIPTION
Finds out the currently selected desktop color depth. You can use this
information to make your program use the same color depth as the desk‐
top, which will likely make it run faster because the graphic driver
won't be doing unnecessary color conversions behind your back.
Under some OSes, switching to a full screen graphics mode may automati‐
cally change the desktop color depth. You have, therefore, to call this
function before setting any graphics mode in order to retrieve the real
desktop color depth. Example:
allegro_init();
...
if ((depth = desktop_color_depth()) != 0) {
set_color_depth(depth);
}
RETURN VALUE
Returns the color depth or zero on platforms where this information is
not available or does not apply.
SEE ALSOget_desktop_resolution(3), set_color_depth(3), set_gfx_mode(3)Allegro version 4.4.2 desktop_color_depth(3)