#include <X11/Xlib.h>
#include <X11/Xatom.h>

static int error_handler (Display *d, XErrorEvent *ev)
{
	return 1;
}

int main (int argc, char *argv[])
{
	Display *d;
        Atom type = None;
        int format;
        unsigned long nitems;
        unsigned long after;
        unsigned char *data = NULL;

	d = XOpenDisplay (NULL);

	XSetErrorHandler (error_handler);

	XGetWindowProperty (d, (Window)12345, 
                            XA_WM_NAME, 0, 0, False, XA_WM_NAME, 
                            &type, &format, &nitems, &after, &data);
	if (data)
		XFree (data);

	return 0;
}