clippedViewDrawing

- (IBAction)snapshot:(id)sender {
	UIButton *button = sender;
	UIView *v = button.superview;
	CGRect allTheViews = CGRectUnion(v.bounds, button.frame);
	UIGraphicsBeginImageContext(allTheViews.size);
	CGContextRef context = UIGraphicsGetCurrentContext();
	CGContextTranslateCTM(context, -allTheViews.origin.x, -allTheViews.origin.y);
	[v.layer renderInContext:context];
	UIImage *img = UIGraphicsGetImageFromCurrentImageContext();
	UIGraphicsEndImageContext();
	[UIImagePNGRepresentation(img) writeToFile:@"/tmp/foo.png" atomically:NO];
}

Boom.