get_desktop_resolution(3) Allegro manual get_desktop_resolution(3)NAMEget_desktop_resolution - Finds out the desktop resolution. Allegro game
programming library.
SYNOPSIS
#include <allegro.h>
int get_desktop_resolution(int *width, int *height);
DESCRIPTION
Finds out the currently selected desktop resolution. You can use this
information to avoid creating windows bigger than the current resolu‐
tion. This is especially important for some windowed drivers which are
unable to create windows bigger than the desktop. Each parameter is a
pointer to an integer where one dimension of the screen will be stored.
Under some OSes, switching to a full screen graphics mode may automati‐
cally change the desktop resolution. You have, therefore, to call this
function before setting any graphics mode in order to retrieve the real
desktop resolution. Example:
int width, height;
allegro_init();
...
if (get_desktop_resolution(&width, &height) == 0) {
/* Got the resolution correctly */
}
RETURN VALUE
Returns zero on success, or a negative number if this information is
not available or does not apply, in which case the values stored in the
variables you provided for `width' and `height' are undefined.
SEE ALSOdesktop_color_depth(3), set_gfx_mode(3)Allegro version 4.4.2 get_desktop_resolution(3)
