diff -r d77ffd8a6f36 src/video/SDL_video.c
--- a/src/video/SDL_video.c	Tue Apr 08 16:06:31 2014 -0500
+++ b/src/video/SDL_video.c	Tue Apr 15 11:47:23 2014 -0500
@@ -1397,6 +1397,8 @@
             }
             return -1;
         }
+    } else if (flags & SDL_WINDOW_FOREIGN) {
+        window->flags |= SDL_WINDOW_FOREIGN;
     }
 
     if (title) {
diff -r d77ffd8a6f36 src/video/x11/SDL_x11window.c
--- a/src/video/x11/SDL_x11window.c	Tue Apr 08 16:06:31 2014 -0500
+++ b/src/video/x11/SDL_x11window.c	Tue Apr 15 11:47:23 2014 -0500
@@ -936,6 +936,7 @@
     SDL_DisplayData *displaydata = (SDL_DisplayData *) SDL_GetDisplayForWindow(window)->driverdata;
     Display *display = data->videodata->display;
     XEvent event;
+    if (window->flags & SDL_WINDOW_FOREIGN) return;
 
     if (X11_IsWindowMapped(_this, window)) {
         X11_XWithdrawWindow(display, data->xwindow, displaydata->screen);