public static void ForEach(IntPtr deviceInfoSet, Guid hidClass, Action<DeviceInfoData, DeviceInterfaceData> action)
{
var deviceInfoData = new DeviceInfoData
{
DevInst = 0,
ClassGuid = Guid.Empty,
Reserved = IntPtr.Zero
};
deviceInfoData.cbSize = Marshal.SizeOf(deviceInfoData);
uint deviceIndex = 0;
while (SetupDiEnumDeviceInfo(deviceInfoSet, deviceIndex, ref deviceInfoData))
{
deviceIndex += 1;
var deviceInterfaceData = new DeviceInterfaceData
{
Flags = 0,
InterfaceClassGuid = Guid.Empty,
Reserved = IntPtr.Zero
};
deviceInterfaceData.cbSize = Marshal.SizeOf(deviceInterfaceData);
uint deviceInterfaceIndex = 0;
while (SetupDiEnumDeviceInterfaces(deviceInfoSet, ref deviceInfoData, ref hidClass, deviceInterfaceIndex, ref deviceInterfaceData))
{
deviceInterfaceIndex++;
action(deviceInfoData, deviceInterfaceData);
}
}
}
public static DeviceInterfaceDetailData? Run(IntPtr deviceInfoSet, DeviceInterfaceData deviceInterfaceData)
{
var bufferSize = 0;
var interfaceDetail = new DeviceInterfaceDetailData
{
Size = IntPtr.Size == 4 ? 4 + Marshal.SystemDefaultCharSize : 8
};
SetupDiGetDeviceInterfaceDetailBuffer(deviceInfoSet, ref deviceInterfaceData, IntPtr.Zero, 0, ref bufferSize, IntPtr.Zero);
if (SetupDiGetDeviceInterfaceDetailMethod(
deviceInfoSet,
ref deviceInterfaceData,
ref interfaceDetail,
bufferSize,
ref bufferSize, IntPtr.Zero))
return interfaceDetail;
else
return null;
}
static internal extern bool SetupDiEnumDeviceInterfaces(IntPtr deviceInfoSet, ref DeviceInfoData deviceInfoData, ref Guid interfaceClassGuid, uint memberIndex, ref DeviceInterfaceData deviceInterfaceData);
static internal extern bool SetupDiGetDeviceInterfaceDetailMethod(IntPtr deviceInfoSet, ref DeviceInterfaceData deviceInterfaceData, ref DeviceInterfaceDetailData deviceInterfaceDetailData, int deviceInterfaceDetailDataSize, ref int requiredSize, IntPtr deviceInfoData);