private static APIs.DeviceInterfaceDetailData GetDeviceInfo(IntPtr hDevInfoSet, Guid deviceGUID, out string deviceID, int devicePortIndex)
{
// Get a Device Interface Data structure.
// --------------------------------------
APIs.DeviceInterfaceData interfaceData = new APIs.DeviceInterfaceData();
APIs.CRErrorCodes crResult;
IntPtr startingDevice;
APIs.DevinfoData infoData = new APIs.DevinfoData();
APIs.DeviceInterfaceDetailData detailData = new APIs.DeviceInterfaceDetailData();
bool result = true;
IntPtr ptrInstanceBuf;
uint requiredSize = 0;
interfaceData.Init();
infoData.Size = Marshal.SizeOf(typeof(APIs.DevinfoData));
detailData.Size = Marshal.SizeOf(typeof(APIs.DeviceInterfaceDetailData));
result = APIs.SetupDiEnumDeviceInterfaces(
hDevInfoSet,
0,
ref deviceGUID,
(uint)devicePortIndex,
ref interfaceData);
if (!result)
{
if (Marshal.GetLastWin32Error() == APIs.ERROR_NO_MORE_ITEMS)
{
deviceID = string.Empty;
return(new APIs.DeviceInterfaceDetailData());
}
else
{
throw new ApplicationException("[CCore::GetDeviceInfo] Error when retriving device info");
}
}
//Get a DevInfoDetailData and DeviceInfoData
// ------------------------------------------
// First call to get the required size.
result = APIs.SetupDiGetDeviceInterfaceDetail(
hDevInfoSet,
ref interfaceData,
IntPtr.Zero,
0,
ref requiredSize,
ref infoData);
// Create the buffer.
detailData.Size = 5;
// Call with the correct buffer
result = APIs.SetupDiGetDeviceInterfaceDetail(
hDevInfoSet,
ref interfaceData,
ref detailData, // ref devDetailBuffer,
requiredSize,
ref requiredSize,
ref infoData);
if (!result)
{
System.Windows.Forms.MessageBox.Show(Marshal.GetLastWin32Error().ToString());
throw new ApplicationException("[CCore::GetDeviceInfo] Can not get SetupDiGetDeviceInterfaceDetail");
}
startingDevice = infoData.DevInst;
//Get current device data
ptrInstanceBuf = Marshal.AllocHGlobal(1024);
crResult = (APIs.CRErrorCodes)APIs.CM_Get_Device_ID(startingDevice, ptrInstanceBuf, 1024, 0);
if (crResult != APIs.CRErrorCodes.CR_SUCCESS)
{
throw new ApplicationException("[CCore::GetDeviceInfo] Error calling CM_Get_Device_ID: " + crResult);
}
// We have the pnp string of the parent device.
deviceID = Marshal.PtrToStringAuto(ptrInstanceBuf);
Marshal.FreeHGlobal(ptrInstanceBuf);
return(detailData);
}
private static APIs.DeviceInterfaceDetailData GetDeviceInfo(IntPtr hDevInfoSet, Guid deviceGUID, out string deviceID, int devicePortIndex)
{
// Get a Device Interface Data structure.
// --------------------------------------
APIs.DeviceInterfaceData interfaceData = new APIs.DeviceInterfaceData();
APIs.CRErrorCodes crResult;
IntPtr startingDevice;
APIs.DevinfoData infoData = new APIs.DevinfoData();
APIs.DeviceInterfaceDetailData detailData = new APIs.DeviceInterfaceDetailData();
bool result = true;
IntPtr ptrInstanceBuf;
uint requiredSize = 0;
interfaceData.Init();
infoData.Size = Marshal.SizeOf(typeof(APIs.DevinfoData));
detailData.Size = Marshal.SizeOf(typeof(APIs.DeviceInterfaceDetailData));
result = APIs.SetupDiEnumDeviceInterfaces(
hDevInfoSet,
0,
ref deviceGUID,
(uint)devicePortIndex,
ref interfaceData);
if (!result)
{
if (Marshal.GetLastWin32Error() == APIs.ERROR_NO_MORE_ITEMS)
{
deviceID = string.Empty;
return new APIs.DeviceInterfaceDetailData();
}
else
{
throw new ApplicationException("[CCore::GetDeviceInfo] Error when retriving device info");
}
}
//Get a DevInfoDetailData and DeviceInfoData
// ------------------------------------------
// First call to get the required size.
result = APIs.SetupDiGetDeviceInterfaceDetail(
hDevInfoSet,
ref interfaceData,
IntPtr.Zero,
0,
ref requiredSize,
ref infoData);
// Create the buffer.
detailData.Size = 5;
// Call with the correct buffer
result = APIs.SetupDiGetDeviceInterfaceDetail(
hDevInfoSet,
ref interfaceData,
ref detailData, // ref devDetailBuffer,
requiredSize,
ref requiredSize,
ref infoData);
if (!result)
{
System.Windows.Forms.MessageBox.Show(Marshal.GetLastWin32Error().ToString());
throw new ApplicationException("[CCore::GetDeviceInfo] Can not get SetupDiGetDeviceInterfaceDetail");
}
startingDevice = infoData.DevInst;
//Get current device data
ptrInstanceBuf = Marshal.AllocHGlobal(1024);
crResult = (APIs.CRErrorCodes)APIs.CM_Get_Device_ID(startingDevice, ptrInstanceBuf, 1024, 0);
if (crResult != APIs.CRErrorCodes.CR_SUCCESS)
throw new ApplicationException("[CCore::GetDeviceInfo] Error calling CM_Get_Device_ID: " + crResult);
// We have the pnp string of the parent device.
deviceID = Marshal.PtrToStringAuto(ptrInstanceBuf);
Marshal.FreeHGlobal(ptrInstanceBuf);
return detailData;
}