Created attachment 283547 [details] [review]
win32 implementation for gdk_test_simulate_key()

Here is the current "implementation":

gboolean
_gdk_win32_window_simulate_key (GdkWindow      *window,
                       gint            x,
                       gint            y,
                       guint           keyval,
                       GdkModifierType modifiers,
                       GdkEventType    key_pressrelease)
{
  g_return_val_if_fail (key_pressrelease == GDK_KEY_PRESS || key_pressrelease == GDK_KEY_RELEASE, FALSE);
  g_return_val_if_fail (window != NULL, FALSE);
  return FALSE;
}

It does nothing. I realized this by checking why some of our unit tests for GIMP fail for the win32 platform. See bug 734869.
Attached a patch which makes an implementation for gdk_test_simulate_key() on win32. Patch built against master.