pinvoke.net: Edit: cfgmgr32.CM_Get_Device_Interface

@msdn=https://docs.microsoft.com/en-us/windows/desktop/api/cfgmgr32/nf-cfgmgr32-cm_get_device_interface_lista
@pinvoke=http://pinvoke.net/$$$.htm

Summary: The CM_Get_Device_Interface_List function retrieves a list of device interface instances that belong to a specified device interface class.

!!!!C# Signature:
 [DllImport("CfgMgr32.dll", CharSet = CharSet.Unicode)]
 static extern uint CM_Get_Device_Interface_List(ref Guid interfaceClassGuid, string deviceID, char[] buffer, uint bufferLength, uint flags);

Documentation: CM_Get_Device_Interface_List@msdn on MSDN

!!!!Sample Code:

const ulong CM_GETIDLIST_FILTER_PRESENT = 0x00000100;
 const uint CM_GET_DEVICE_INTERFACE_LIST_PRESENT = 0x0;
 const int CR_SUCCESS = 0x0;
 static Guid GUID_DEVINTERFACE_COMPORT = new Guid("{86E0D1E0-8089-11D0-9CE4-08003E301F73}");

public static string[] GetPortNames()
 {

var cr = CM_Get_Device_Interface_List_Size(out uint size, ref GUID_DEVINTERFACE_COMPORT, null, CM_GET_DEVICE_INTERFACE_LIST_PRESENT);            
  if (cr == CR_SUCCESS && size != 0)
  {
    char[] data = new char[size];
    cr = CM_Get_Device_Interface_List(ref GUID_DEVINTERFACE_COMPORT, null, data, (uint)data.Length, CM_GET_DEVICE_INTERFACE_LIST_PRESENT);
    if (cr == CR_SUCCESS)
      return new string(data).Split('\0').ToList().Where(m=>!string.IsNullOrEmpty(m)).ToArray();
    }
    return null;
 }