title: Take screenshot of the window
body: <p>I'm using this method to take a screenshot of my app:</p>
  
  <pre><code>+ (NSData*)TakeScreenshot 
  {
      // 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 [[UIApplication sharedApplication] windows]) 
      {
          if (![window respondsToSelector:@selector(screen)] || [window screen] == [UIScreen mainScreen])
          {
              // -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
  
              CGContextTranslateCTM(context,
                                    -[window bounds].size.width * [[window layer] anchorPoint].x,
                                    -[window bounds].size.height * [[window layer] anchorPoint].y);
  
              // Render the layer hierarchy to the current context
              [[window layer] renderInContext:context];
  
              // Restore the context
              CGContextRestoreGState(context);
  
  
          }
      }
  
  
      // Retrieve the screenshot image
      UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
      NSData *imageData = UIImageJPEGRepresentation(image, 100);
  
      UIGraphicsEndImageContext();
  
      return imageData;
  }
  </code></pre>
  
  <p>The problem is, I don't see the status bar. I'm getting only a white area without the status bar. How can I take a screenshot of the whole screen, with the status bar and other controls like tabbar, navigation bar and etc.</p>
  
  <p>Thanks in advance!</p>