static extern bool SetupDiGetDeviceInterfaceDetail(
IntPtr DeviceInfoSet,
ref SP_DEVICE_INTERFACE_DATA DeviceInterfaceData,
ref SP_DEVICE_INTERFACE_DETAIL_DATA DeviceInterfaceDetailData,
UInt32 DeviceInterfaceDetailDataSize,
ref UInt32 RequiredSize,
IntPtr DeviceInfoData
);
static extern bool SetupDiGetDeviceInterfaceDetail(
IntPtr DeviceInfoSet,
ref SP_DEVICE_INTERFACE_DATA DeviceInterfaceData,
ref SP_DEVICE_INTERFACE_DETAIL_DATA DeviceInterfaceDetailData,
UInt32 DeviceInterfaceDetailDataSize,
ref UInt32 RequiredSize,
IntPtr DeviceInfoData
);
public bool SetupDiGetDeviceInterfaceDetail()
{
uint uDeviceInterfaceDetailDataSize = 0, uRequiredSize = 0;
_deviceInterfaceDetailData = new SP_DEVICE_INTERFACE_DETAIL_DATA();
if (IntPtr.Size == 8)
_deviceInterfaceDetailData.cbSize = 8;
else
_deviceInterfaceDetailData.cbSize = 5; ; // …
bool rv = SetupDiGetDeviceInterfaceDetail(
_hDevInfo,
ref _deviceInterfaceData,
IntPtr.Zero,
(uint)uDeviceInterfaceDetailDataSize,
ref uRequiredSize,
IntPtr.Zero);
uDeviceInterfaceDetailDataSize = uRequiredSize;
int err = Marshal.GetLastWin32Error();
bool bResult = SetupDiGetDeviceInterfaceDetail(
_hDevInfo,
ref _deviceInterfaceData,
ref _deviceInterfaceDetailData,
uDeviceInterfaceDetailDataSize,
ref uRequiredSize,
IntPtr.Zero);
_strDevicePathName = _deviceInterfaceDetailData.DevicePath;
return bResult;
}
public bool SetupDiGetDeviceInterfaceDetail()
{
UInt32 uDeviceInterfaceDetailDataSize = 0, uRequiredSize = 0;
_deviceInterfaceDetailData = new SP_DEVICE_INTERFACE_DETAIL_DATA();
_deviceInterfaceDetailData.cbSize = 5; // …
SetupDiGetDeviceInterfaceDetail(
_hDevInfo,
ref _deviceInterfaceData,
IntPtr.Zero,
uDeviceInterfaceDetailDataSize,
ref uRequiredSize,
IntPtr.Zero);
uDeviceInterfaceDetailDataSize = uRequiredSize;
bool bResult = SetupDiGetDeviceInterfaceDetail(
_hDevInfo,
ref _deviceInterfaceData,
ref _deviceInterfaceDetailData,
uDeviceInterfaceDetailDataSize,
ref uRequiredSize,
IntPtr.Zero);
_strDevicePathName = _deviceInterfaceDetailData.DevicePath;
return bResult;
}
