[gtk+/gtk-3-14] win32: Don't check the position of a NULL device

[Carlos Garnacho <carlosg src gnome org>]

commit 765902dbd6a6dc8c1bc832d4081613618d143f1a
Author: Carlos Garnacho <carlosg gnome org>
Date:   Tue Jan 27 11:24:18 2015 +0000

    win32: Don't check the position of a NULL device
    
    This function is given a barely setup GdkEvent, so the GdkDevice field
    is still unset, causing warnings and misbehaviors when the position
    is queried for it.
    
    Given that the wintab GTK+ code seems to rely somewhat hard on the wintab
    device managing the pointer cursor, query the pointer position from the
    pointer itself.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=743330

 gdk/win32/gdkdevicemanager-win32.c |    5 +----
 1 files changed, 1 insertions(+), 4 deletions(-)
---
diff --git a/gdk/win32/gdkdevicemanager-win32.c b/gdk/win32/gdkdevicemanager-win32.c
index a645c10..7eba80b 100644
--- a/gdk/win32/gdkdevicemanager-win32.c
+++ b/gdk/win32/gdkdevicemanager-win32.c
@@ -886,7 +886,6 @@ _gdk_input_other_event (GdkEvent  *event,
   GdkDeviceManagerWin32 *device_manager;
   GdkDeviceWintab *source_device = NULL;
   GdkDeviceGrabInfo *last_grab;
-  GdkDevice *device = NULL;
   GdkEventMask masktest;
   guint key_state;
   POINT pt;
@@ -908,9 +907,7 @@ _gdk_input_other_event (GdkEvent  *event,
     }
 
   device_manager = GDK_DEVICE_MANAGER_WIN32 (gdk_display_get_device_manager (_gdk_display));
-
-  device = gdk_event_get_device (event);
-  window = gdk_device_get_window_at_position (device, &x, &y);
+  window = gdk_device_get_window_at_position (device_manager->core_pointer, &x, &y);
   if (window == NULL)
     window = _gdk_root;