Hack around some fullscreen issues with gl under Windows

(non-fullscreen window would not always return to original size).

git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@23607 b3059339-0415-0410-9bf9-f77b7e298cf2

libvo/w32_common.c

@@ -277,6 +277,9 @@ static int createRenderingContext(void) {
         vo_dx = xinerama_x;
         vo_dy = xinerama_y;
     } else {
+        // make sure there are no "stale" resize events
+        // that would set vo_d* to wrong values
+        vo_w32_check_events();
         vo_dwidth = prev_width;
         vo_dheight = prev_height;
         vo_dx = prev_x;