Converting WPF Control to Image

In one of my application I need to convert my WPF Form to Image. I Googled around and find RenderTargetBitmap is solution to my Problem. The Code is given below.

public static PngBitmapEncoder ImageFromControl(Control myControl)
{
Transform transform = myControl.LayoutTransform;

System.Windows.Size sizeOfControl = new System.Windows.Size(myControl.ActualWidth, controlToConvert.ActualHeight);
myControl.Measure(sizeOfControl);
myControl.Arrange(new Rect(sizeOfControl));

RenderTargetBitmap renderBitmap = new RenderTargetBitmap((Int32)sizeOfControl.Width, (Int32)sizeOfControl.Height, 96d, 96d, PixelFormats.Pbgra32);
renderBitmap.Render(myControl);

PngBitmapEncoder pngEncoder = new PngBitmapEncoder();
pngEncoder.Frames.Add(BitmapFrame.Create(renderBitmap));

return pngEncoder;
}

and in my Main function is use it like,,,

stream = File.Create("Control.jpg");
ImageFromControl(myControl).Save(stream);
stream.Close();

I hope this will Help..... Happy Coding :)