Enumerating WPD Devices

[rjm07270]

I believe there is an issue with how enumerating WPD Devices are done. I actually have a similar problem with my own program. That I put it on StackOverflow here https://stackoverflow.com/questions/75405142/net-clean-com-dependencie-dll-keeps-resetting-on-clean-in-visual-studio-2022. The problem is that when you get device ids is that you are getting back a string containing all the device ids and when you try and get a count of devices I believe you are getting a maximum of 1 device. If you want to fix it you can do the steps below.

Disassemble the PortableDeviceApi interop using the command -
ildasm Interop.PortableDeviceApiLib.dll /out:pdapi.il

Open the IL in Notepad and search for the following string

instance void GetDevices([in][out] string& marshal( lpwstr) 
pPnPDeviceIDs,

Replace all instances of the string above with the following string

instance void GetDevices([in][out] string[] marshal(lpwstr[]) 
pPnPDeviceIDs,

Save the IL and reassemble the interop using the command -
ilasm pdapi.il /dll /output=Interop.PortableDeviceApiLib.dll

The only problem will be that the Interop.PortableDeviceApiLib.dll will reset after clean. If one of your guys comes up with a solution plz let me know on StackOverflow or even right here