[gtk+] Initialize impl_window for foreign W32 windows

[Руслан Ижбулатов <ruslanizhb src gnome org>]

commit a8915b89d76c3dd39b828f781c7044e92f792a0d
Author: Руслан Ижбулатов <lrn1986 gmail com>
Date:   Mon Sep 8 15:21:00 2014 +0000

    Initialize impl_window for foreign W32 windows
    
    https://bugzilla.gnome.org/show_bug.cgi?id=736269

 gdk/win32/gdkwindow-win32.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/gdk/win32/gdkwindow-win32.c b/gdk/win32/gdkwindow-win32.c
index d1652cf..09b7d37 100644
--- a/gdk/win32/gdkwindow-win32.c
+++ b/gdk/win32/gdkwindow-win32.c
@@ -705,6 +705,7 @@ gdk_win32_window_foreign_new_for_display (GdkDisplay      *display,
   window = _gdk_display_create_window (display);
   window->visual = gdk_screen_get_system_visual (_gdk_screen);
   window->impl = g_object_new (GDK_TYPE_WINDOW_IMPL_WIN32, NULL);
+  window->impl_window = window;
   impl = GDK_WINDOW_IMPL_WIN32 (window->impl);
   impl->wrapper = window;
   parent = GetParent (anid);