From 96b387599d8fb2d27717256ed098fde0dee83e29 Mon Sep 17 00:00:00 2001
From: Benjamin Otte <otte@redhat.com>
Date: Sat, 14 Aug 2010 04:40:52 +0200
Subject: API: Add gdk_cairo_region_create_from_surface()

The function converts the given surface into an alpha bitmap mask. This
is mostly useful for setting shape regions.

Also adds a new internal function _gdk_cairo_surface_extents() that
computes a surface's extents.
---
 gdk/gdkcairo.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'gdk/gdkcairo.h')

diff --git a/gdk/gdkcairo.h b/gdk/gdkcairo.h
index 4ecb037a8f..c2a71e8a92 100644
--- a/gdk/gdkcairo.h
+++ b/gdk/gdkcairo.h
@@ -50,6 +50,10 @@ void     gdk_cairo_rectangle         (cairo_t            *cr,
 void     gdk_cairo_region            (cairo_t            *cr,
                                       const cairo_region_t    *region);
 
+cairo_region_t *
+         gdk_cairo_region_create_from_surface
+                                     (cairo_surface_t    *surface);
+
 G_END_DECLS
 
 #endif /* __GDK_CAIRO_H__ */
-- 
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