public static Collection <DeviceInformation> GetConnectedDeviceInformations()
{
var deviceInformations = new Collection <DeviceInformation>();
var spDeviceInterfaceData = new SpDeviceInterfaceData();
var spDeviceInfoData = new SpDeviceInfoData();
var spDeviceInterfaceDetailData = new SpDeviceInterfaceDetailData();
spDeviceInterfaceData.CbSize = (uint)Marshal.SizeOf(spDeviceInterfaceData);
spDeviceInfoData.CbSize = (uint)Marshal.SizeOf(spDeviceInfoData);
var hidGuid = new Guid();
APICalls.HidD_GetHidGuid(ref hidGuid);
var i = APICalls.SetupDiGetClassDevs(ref hidGuid, IntPtr.Zero, IntPtr.Zero, APICalls.DigcfDeviceinterface | APICalls.DigcfPresent);
if (IntPtr.Size == 8)
{
spDeviceInterfaceDetailData.CbSize = 8;
}
else
{
spDeviceInterfaceDetailData.CbSize = 4 + Marshal.SystemDefaultCharSize;
}
var x = -1;
while (true)
{
x++;
var setupDiEnumDeviceInterfacesResult = APICalls.SetupDiEnumDeviceInterfaces(i, IntPtr.Zero, ref hidGuid, (uint)x, ref spDeviceInterfaceData);
var errorNumber = Marshal.GetLastWin32Error();
//TODO: deal with error numbers. Give a meaningful error message
if (setupDiEnumDeviceInterfacesResult == false)
{
break;
}
APICalls.SetupDiGetDeviceInterfaceDetail(i, ref spDeviceInterfaceData, ref spDeviceInterfaceDetailData, 256, out _, ref spDeviceInfoData);
var deviceInformation = GetDeviceInformation(spDeviceInterfaceDetailData.DevicePath);
if (deviceInformation == null)
{
continue;
}
deviceInformations.Add(deviceInformation);
}
APICalls.SetupDiDestroyDeviceInfoList(i);
return(deviceInformations);
}
internal static extern bool SetupDiGetDeviceInterfaceDetail(IntPtr hDevInfo, ref SpDeviceInterfaceData deviceInterfaceData, ref SpDeviceInterfaceDetailData deviceInterfaceDetailData, uint deviceInterfaceDetailDataSize, out uint requiredSize, ref SpDeviceInfoData deviceInfoData);
internal static extern bool SetupDiEnumDeviceInterfaces(IntPtr hDevInfo, IntPtr devInfo, ref Guid interfaceClassGuid, uint memberIndex, ref SpDeviceInterfaceData deviceInterfaceData);
