#include <X11/Xlib.h>
#include <X11/extensions/xf86vmode.h>
#include <stdio.h>
#include <stdlib.h>

int main () {

    Display * pDisplay = XOpenDisplay("localhost:0");
    if (pDisplay == NULL) {
	fprintf (stderr, "unable to open display");
        exit(1);
    }
    if (XF86VidModeSelectNextMode(pDisplay, 0)) {
    }
    XCloseDisplay(pDisplay);
    return 0;
}