diff --git a/include/wx/osx/cocoa/private.h b/include/wx/osx/cocoa/private.h
index 291a549dc4..6ac6f6d2ed 100644
--- a/include/wx/osx/cocoa/private.h
+++ b/include/wx/osx/cocoa/private.h
@@ -46,6 +46,7 @@ OSStatus WXDLLIMPEXP_CORE wxMacDrawCGImage(
                                const CGRect *  inBounds,
                                CGImageRef      inImage) ;
 WX_NSImage WXDLLIMPEXP_CORE wxOSXCreateNSImageFromCGImage( CGImageRef image );
+CGImageRef WXDLLIMPEXP_CORE wxOSXCreateCGImageFromNSSImage( WX_NSImage nsimage );
 #endif
 
 long UMAGetSystemVersion() ;
diff --git a/src/osx/carbon/utilscocoa.mm b/src/osx/carbon/utilscocoa.mm
index c9504907ee..4beb7a3685 100644
--- a/src/osx/carbon/utilscocoa.mm
+++ b/src/osx/carbon/utilscocoa.mm
@@ -313,6 +313,25 @@ WX_NSImage  wxOSXCreateNSImageFromCGImage( CGImageRef image )
     return( newImage );
 }
 
+CGImageRef wxOSXCreateCGImageFromNSSImage( WX_NSImage nsimage )
+{
+    // based on http://www.mail-archive.com/cocoa-dev@lists.apple.com/msg18065.html
+    
+    NSSize imageSize = [nsimage size];
+    CGColorSpaceRef genericRGB = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB); 
+    CGContextRef context = CGBitmapContextCreate(NULL, imageSize.width, imageSize.height, 8, 0, genericRGB, kCGImageAlphaPremultipliedFirst); 
+    NSGraphicsContext *nsGraphicsContext = [NSGraphicsContext graphicsContextWithGraphicsPort:context flipped:NO];
+    [NSGraphicsContext saveGraphicsState];
+    [NSGraphicsContext setCurrentContext:nsGraphicsContext];
+    [[NSColor yellowColor] setFill];
+    NSRectFill(NSMakeRect(0.0, 0.0, imageSize.width, imageSize.height));
+    [nsimage drawAtPoint:NSZeroPoint fromRect:NSZeroRect operation:NSCompositeCopy fraction:1.0];
+    [NSGraphicsContext setCurrentContext:nsGraphicsContext];
+    CGImageRef image = CGBitmapContextCreateImage(context);
+    CFRelease(context);
+    return image;
+ }
+
 // ----------------------------------------------------------------------------
 // NSCursor Utils
 // ----------------------------------------------------------------------------