I have modified based on this site's code framework.[http://www.justkernel.com/Blogs/?p=149#comment-19684],this
is the wddm filter driver!
enumerate, add source and destination to VidPn, I can see more monitors at the screen resolution of the desktop properties!
1. the virtual monitor cannot modify the resolution
2. he virtual monitor When the device settings extension or copy function is saved.there is a problem that the settings cannot be saved!
I have already referenced the Microsoft official VIDPN information.[https://docs.microsoft.com/en-us/windows-hardware/drivers/display/multiple-monitors-and-video-present-networks]
I don't know where something went wrong, please help me, thanks!