Off-screen rendering of Opengl view on Windows form C#

See more:

C#

WinForms

As part of my project, I need to take multiple screenshots of a 3D model application( The application will be in minimised state and hence I need to have a off-screen rendering ). The application contains an openGL view on Windows form C#. I used the API 'glReadPixels' to get the pixels and saving the same to bitmap and I was able to get the bitmap. But using 'glReadPixels', I am able to get only the pixels of openGL view. Hence, I am not able to get the pixels in the Windows form. Is there any way to get the pixels of entire view( openGL view + windows form ) and save the same to bitmap. Thanks in advance.