Share only Primary Screen while using multiple monitors using RDPCOMAPILib.dll

I am using the RDPCOMAPILib.dll in my code for screen sharing functionality. However, when the host is using multiple monitors, the screen sharing is not handled properly. I want the host to be able to choose which screen to share: either the primary monitor or an extended monitor. Alternatively, I would like the default setting to share only the primary screen. Is there a property in RDPCOMAPILib.dll that can be used to manage screen sharing effectively?
Please note that I have referred following article for Screen share code
https://www.c-sharpcorner.com/Upload...on-in-C-Sharp/