public DeviceInterfaceDetail(IntPtr handle, DeviceInterfaceData did)
{
// build a DevInfo Data structure
_deviceInfoData = new DevInfoData();
_deviceInfoData.cbSize = (uint)Marshal.SizeOf(_deviceInfoData);
// build a Device Interface Detail Data structure
_didd = new DeviceInterfaceDetailData();
if (IntPtr.Size == 8) // for 64 bit operating systems
{
_didd.cbSize = 8;
}
else
{
_didd.cbSize = 4 + Marshal.SystemDefaultCharSize; // for 32 bit systems
}
// now we can get some more detailed information
uint nRequiredSize;
const uint nBytes = DeviceInterfaceDetailData.BufferSize;
if (!SetupDiGetDeviceInterfaceDetail(handle, ref did, ref _didd, nBytes, out nRequiredSize, ref _deviceInfoData))
{
var lastError = Marshal.GetLastWin32Error();
throw new Win32Exception(lastError, "SetupDiGetDeviceInterfaceDetail failed");
}
}
public static extern Boolean SetupDiGetDeviceInterfaceDetail(
IntPtr hDevInfo,
ref DeviceInterfaceData deviceInterfaceData,
ref DeviceInterfaceDetailData deviceInterfaceDetailData,
UInt32 deviceInterfaceDetailDataSize,
out UInt32 requiredSize,
ref DevInfoData deviceInfoData
);
public static extern Boolean SetupDiGetDeviceInterfaceDetail(
IntPtr hDevInfo,
ref DeviceInterfaceData deviceInterfaceData,
ref DeviceInterfaceDetailData deviceInterfaceDetailData,
UInt32 deviceInterfaceDetailDataSize,
out UInt32 requiredSize,
ref DevInfoData deviceInfoData
);
public DeviceInterfaceDetail(IntPtr handle, DeviceInterfaceData did)
{
// build a DevInfo Data structure
_deviceInfoData = new DevInfoData();
_deviceInfoData.cbSize = (uint)Marshal.SizeOf(_deviceInfoData);
// build a Device Interface Detail Data structure
_didd = new DeviceInterfaceDetailData();
if (IntPtr.Size == 8) // for 64 bit operating systems
_didd.cbSize = 8;
else
_didd.cbSize = 4 + Marshal.SystemDefaultCharSize; // for 32 bit systems
// now we can get some more detailed information
uint nRequiredSize;
const uint nBytes = DeviceInterfaceDetailData.BufferSize;
if (!SetupDiGetDeviceInterfaceDetail(handle, ref did, ref _didd, nBytes, out nRequiredSize, ref _deviceInfoData))
{
var lastError = Marshal.GetLastWin32Error();
throw new Win32Exception(lastError, "SetupDiGetDeviceInterfaceDetail failed");
}
}