diff --git a/gfx/cairo/cairo/src/cairo-win32.h b/gfx/cairo/cairo/src/cairo-win32.h
--- a/src/cairo-win32.h
+++ b/src/cairo-win32.h
@@ -44,16 +44,19 @@
 #include <windows.h>
 
 CAIRO_BEGIN_DECLS
 
 cairo_public cairo_surface_t *
 cairo_win32_surface_create (HDC hdc);
 
 cairo_public cairo_surface_t *
+cairo_win32_surface_create_with_alpha (HDC hdc);
+
+cairo_public cairo_surface_t *
 cairo_win32_printing_surface_create (HDC hdc);
 
 cairo_public cairo_surface_t *
 cairo_win32_surface_create_with_ddb (HDC hdc,
                                      cairo_format_t format,
                                      int width,
                                      int height);

--- cairo-1.12.16/src/win32/cairo-win32-display-surface.c.orig	2013-08-26 15:07:21.000000000 +0000
+++ cairo-1.12.16/src/win32/cairo-win32-display-surface.c	2014-03-27 00:04:01.097336000 +0000
@@ -916,33 +916,14 @@
  *              multiplied by all the src components.
  */
 
-/**
- * cairo_win32_surface_create:
- * @hdc: the DC to create a surface for
- *
- * Creates a cairo surface that targets the given DC.  The DC will be
- * queried for its initial clip extents, and this will be used as the
- * size of the cairo surface.  The resulting surface will always be of
- * format %CAIRO_FORMAT_RGB24; should you need another surface format,
- * you will need to create one through
- * cairo_win32_surface_create_with_dib().
- *
- * Return value: the newly created surface
- *
- * Since: 1.0
- **/
-cairo_surface_t *
-cairo_win32_surface_create (HDC hdc)
+static cairo_surface_t *
+cairo_win32_surface_create_internal (HDC hdc, cairo_format_t format)
 {
     cairo_win32_display_surface_t *surface;
 
-    cairo_format_t format;
     cairo_status_t status;
     cairo_device_t *device;
 
-    /* Assume that everything coming in as a HDC is RGB24 */
-    format = CAIRO_FORMAT_RGB24;
-
     surface = malloc (sizeof (*surface));
     if (surface == NULL)
 	return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
@@ -977,6 +958,47 @@
 }
 
 /**
+ * cairo_win32_surface_create:
+ * @hdc: the DC to create a surface for
+ *
+ * Creates a cairo surface that targets the given DC.  The DC will be
+ * queried for its initial clip extents, and this will be used as the
+ * size of the cairo surface.  The resulting surface will always be of
+ * format %CAIRO_FORMAT_RGB24; should you need another surface format,
+ * you will need to create one through
+ * cairo_win32_surface_create_with_dib().
+ *
+ * Return value: the newly created surface
+ *
+ * Since: 1.0
+ **/
+cairo_surface_t *
+cairo_win32_surface_create (HDC hdc)
+{
+    return cairo_win32_surface_create_internal(hdc, CAIRO_FORMAT_RGB24);
+}
+
+/**
+ * cairo_win32_surface_create_with_alpha:
+ * @hdc: the DC to create a surface for
+ *
+ * Creates a cairo surface that targets the given DC.  The DC will be
+ * queried for its initial clip extents, and this will be used as the
+ * size of the cairo surface.  The resulting surface will always be of
+ * format %CAIRO_FORMAT_ARGB32; this format is used when drawing into
+ * transparent windows.
+ *
+ * Return value: the newly created surface
+ *
+ * Since: 1.12
+ **/
+cairo_surface_t *
+cairo_win32_surface_create_with_alpha (HDC hdc)
+{
+    return cairo_win32_surface_create_internal(hdc, CAIRO_FORMAT_ARGB32);
+}
+
+/**
  * cairo_win32_surface_create_with_dib:
  * @format: format of pixels in the surface to create
  * @width: width of the surface, in pixels