We are using Pega robotics (RPA) for automating web application process as part of our our Process automation. We are using Pega robotics version 19.1.89.

While using a customized C# code to take screenshots, we get the following error at some places.

Error message while trying to capture screenshot 

The handle is invalid--FullException::System.ComponentModel.Win32Exception (0x80004005): The handle is invalid
   at System.Drawing.Graphics.CopyFromScreen(Int32 sourceX, Int32 sourceY, Int32 destinationX, Int32 destinationY, Size blockRegionSize, CopyPixelOperation copyPixelOperation)
   at System.Drawing.Graphics.CopyFromScreen(Int32 sourceX, Int32 sourceY, Int32 destinationX, Int32 destinationY, Size blockRegionSize)
   at Dynamic.Script_8D5DAC3DB8A72BF.Script.GrabScreenShotPNG(String outputImagePath, Int32 width, Int32 height, Int32 xCoordinate, Int32 yCoordinate)--Inner Exception::

This is the logic that we use to take the screenshot

                using( Bitmap bitmap = new Bitmap(Screen.PrimaryScreen.Bounds.Width, Screen.PrimaryScreen.Bounds.Height))                 {                     using( Graphics graphics = Graphics.FromImage(bitmap))                     {                         graphics.CopyFromScreen(0, 0, 0, 0, bitmap.Size);                     }                     bitmap.Save(outputImagePath, System.Drawing.Imaging.ImageFormat.Jpeg);                 }