public static string Description(IntPtr deviceInfoSet, DeviceInfoData devInfoData)
{
if (Environment.OSVersion.Version.Major > 5)
{
var descriptionBuffer = new byte[1024];
ulong propertyType = 0;
var requiredSize = 0;
var has = SetupDiGetDevicePropertyW(deviceInfoSet,
ref devInfoData,
ref DevicePropertyKeyDeviceDescription,
ref propertyType,
descriptionBuffer,
descriptionBuffer.Length,
ref requiredSize,
0);
if (has)
return descriptionBuffer.ToUTF16String();
else
return null;
}
else
return null;
}
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 string Description(IntPtr deviceInfoSet, DeviceInfoData deviceInfoData)
{
var descriptionBuffer = new byte[1024];
var requiredSize = 0;
var type = 0;
SetupDiGetDeviceRegistryPropertyMethod(deviceInfoSet,
ref deviceInfoData,
0,
ref type,
descriptionBuffer,
descriptionBuffer.Length,
ref requiredSize);
return descriptionBuffer.ToUTF8String();
}
static internal extern bool SetupDiEnumDeviceInterfaces(IntPtr deviceInfoSet, ref DeviceInfoData deviceInfoData, ref Guid interfaceClassGuid, uint memberIndex, ref DeviceInterfaceData deviceInterfaceData);
static internal extern bool SetupDiEnumDeviceInfo(IntPtr deviceInfoSet, uint memberIndex, ref DeviceInfoData deviceInfoData);
static internal extern bool SetupDiGetDevicePropertyW(IntPtr deviceInfo, ref DeviceInfoData deviceInfoData, ref DevicePropertyKey propkey, ref ulong propertyDataType, byte[] propertyBuffer, int propertyBufferSize, ref int requiredSize, uint flags);
static internal extern bool SetupDiGetDeviceRegistryPropertyMethod(IntPtr deviceInfoSet, ref DeviceInfoData deviceInfoData, int propertyVal, ref int propertyRegDataType, byte[] propertyBuffer, int propertyBufferSize, ref int requiredSize);