[gtk+] Remove gdk_win32_input_shape_combine_region()

[Руслан Ижбулатов <ruslanizhb src gnome org>]

commit 9e11bb33356d627a1ef723d77a981144520e52cd
Author: Руслан Ижбулатов <lrn1986 gmail com>
Date:   Thu Jul 24 13:41:51 2014 +0000

    Remove gdk_win32_input_shape_combine_region()
    
    This function currently calls gdk_win32_window_shape_combine_region(),
    which is wrong, because it leads to SetWindowRgn() being called with
    non-NULL region, which makes W32 disable theming (particularly - decoration
    theming), which makes decorations revert back to old GDI-drawn Windows 2000
    variant, which looks out of place and interacts *badly* with alpha channel
    (because GDI).
    
    https://bugzilla.gnome.org/show_bug.cgi?id=733671

 gdk/win32/gdkwindow-win32.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)
---
diff --git a/gdk/win32/gdkwindow-win32.c b/gdk/win32/gdkwindow-win32.c
index 9b02791..0088206 100644
--- a/gdk/win32/gdkwindow-win32.c
+++ b/gdk/win32/gdkwindow-win32.c
@@ -3227,10 +3227,10 @@ gdk_win32_input_shape_combine_region (GdkWindow *window,
                                      gint offset_x,
                                      gint offset_y)
 {
-  if (GDK_WINDOW_DESTROYED (window))
-    return;
-  /* CHECK: are these really supposed to be the same? */
-  gdk_win32_window_shape_combine_region (window, shape_region, offset_x, offset_y);
+  /* Input shapes are not supported: input shape is always the same as
+   * the window shape; pixels with alpha == 0 are usually not clickable,
+   * clickability can be overriden by handling WM_NCHITTEST.
+   */
 }
 
 gboolean