Add assembly for methods in cfgmgr32.dll.

[zhuxb711]

Describe the bug
No CM_....... function in SetupAPI class.

Expected behavior
SetupAPI should include the function like:
CM_Request_Device_Eject()
CM_Get_Parent()

They are in cfgmgr32.h but we could use it by using

[DllImport("setupapi.dll", CharSet = CharSet.Unicode)]
 private static extern int CM_Request_Device_Eject(
            uint dnDevInst,
            out PNP_VETO_TYPE pVetoType,
            StringBuilder pszVetoName,
            int ulNameLength,
            int ulFlags);

[dahall]

I found very little online referencing these functions so I ignored them. Have you found practical uses for them?

[zhuxb711]

Check here

I use them to Eject the USB device. But I don't have too much article about cfgmgr32.h

[dahall]

Doing a little more checking, those methods are only referenced in SetupApi.dll. They are declared and defined in CfgMgr32.dll. I'll put it on the list of assemblies to create. I'm going to change the title to reflect the change.

[dahall]

Out on AppVeyor is a pre-release for the CfgMgr32 assembly with all the documented methods and some helper functions and classes as well. Maybe some will be of use to you.