desktop_color_depth man page on DragonFly

desktop_color_depth man page on DragonFly

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desktop_color_depth(3)		Allegro manual		desktop_color_depth(3)

NAME
       desktop_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 ALSO
       get_desktop_resolution(3), set_color_depth(3), set_gfx_mode(3)

Allegro				 version 4.4.2		desktop_color_depth(3)

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