Allow fullscreen_geometry() before window is created

src/conio/x_events.c

@@ -469,9 +469,7 @@ fullscreen_geometry(int *x_org, int *y_org, int *width, int *height)
 	XineramaScreenInfo *xsi;
 #endif
 
-	if (win == 0)
-		return false;
-
+	if (win != 0) {
 #if defined(WITH_XRANDR) || defined(WITH_XINERAMA)
 		if (x11.XGetGeometry(dpy, win, (void *)&newroot, &wx, &wy, &rw, &rh, (void *)&dummy, (void *)&dummy) == 0)
 			return false;
@@ -555,6 +553,8 @@ fullscreen_geometry(int *x_org, int *y_org, int *width, int *height)
 			}
 		}
 #endif
+	if (root == 0)
+		return false;
 	if (x11.XGetGeometry(dpy, root, (void *)&newroot, &wx, &wy, &rw, &rh, (void *)&dummy, (void *)&dummy) == 0)
 		return false;