ipad popover screenshot problem

Hi there.

I'm having problem with UIPopover screenshot. I use apple native screenshot code.
Here is what I have on the iPad.

And here is what I have on screenshot

Here is code I use.

// Create a graphics context with the target size

// On iOS 4 and later, use UIGraphicsBeginImageContextWithOptions to take the scale into consideration

// On iOS prior to 4, fall back to use UIGraphicsBeginImageContext

CGSize imageSize = [[UIScreen mainScreen] bounds].size;

if (NULL != UIGraphicsBeginImageContextWithOptions)

UIGraphicsBeginImageContextWithOptions(imageSize, NO, 0);

else

UIGraphicsBeginImageContext(imageSize);

CGContextRef context = UIGraphicsGetCurrentContext();

// Iterate over every window from back to front

for (UIWindow *window in [[UIApplicationsharedApplication] windows])

{

if (![window respondsToSelector:@selector(screen)] || [window screen] == [UIScreenmainScreen])

{

// -renderInContext: renders in the coordinate space of the layer,

// so we must first apply the layer's geometry to the graphics context

CGContextSaveGState(context);

// Center the context around the window's anchor point

CGContextTranslateCTM(context, [window center].x, [window center].y);

// Apply the window's transform about the anchor point

CGContextConcatCTM(context, [window transform]);

// Offset by the portion of the bounds left of and above the anchor point

NSInteger yOffset = 0;//[UIApplication sharedApplication].statusBarHidden ? 0 : -20;//scl

CGContextTranslateCTM(context,

-[window bounds].size.width * [[window layer] anchorPoint].x,

-[window bounds].size.height * [[window layer] anchorPoint].y + yOffset);

// Render the layer hierarchy to the current context

[[window layer] renderInContext:context];

// Restore the context

CGContextRestoreGState(context);

}

}

// Retrieve the screenshot image

UIImage *image = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

return image;

Can anybody help me. I've searched everywhere. Couldn't find answer.