Curtain mode in remote desktop

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Hi,
I need to implement curtain mode during remote desktop control. Whenever admin take control of a remote machine, local display should be curtained so that local user can't see what admin is doing. Is there any way this can be implemented in C# or C++

Thanks

What I have tried:

I have searched in google but unable to get any solution.

Posted 24-Apr-17 17:32pm

Member 2006196

Updated 10-May-17 20:16pm

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**`Randor`** · Answer 1 · 2017-05-10T20:16:00

Hi,

1.) Create a program that can create a fullscreen black window. Add some code that utilizes the WTSRegisterSessionNotificationEx [^] function to receive session change notifications. When your program receives the WM_WTSSESSION_CHANGE message[^] then show the black window when WPARAM is equal to WTS_SESSION_REMOTE_CONTROL (0x9)
2.) Launch the program from a service such as this one: Start Your Windows Programs From An NT Service[^].

Best Wishes,
-David Delaune