void TEngineImp::OpenDevice(unsigned Number)
{
    HDEVINFO hardwareDeviceInfo;
    hardwareDeviceInfo = SetupDiGetClassDevsW((LPGUID)&GUID_SLAB_DEVICE_INTERFACE_CLASS, 0, 0, DIGCF_PRESENT | DIGCF_INTERFACEDEVICE);
    if(INVALID_HANDLE_VALUE == hardwareDeviceInfo)
        return;

    SP_INTERFACE_DEVICE_DATA deviceInterfaceData;
    deviceInterfaceData.cbSize = sizeof(SP_INTERFACE_DEVICE_DATA);

    int i = 0;

    do
    {
        if(SetupDiEnumDeviceInterfaces(hardwareDeviceInfo, 0, (LPGUID)&GUID_SLAB_DEVICE_INTERFACE_CLASS, i, &deviceInterfaceData))
        {
            PSP_INTERFACE_DEVICE_DETAIL_DATA deviceInterfaceDetailData;
            ULONG predictedLength = 0;
            ULONG requiredLength = 0, bytes = 0;

            SetupDiGetInterfaceDeviceDetailW(hardwareDeviceInfo, &deviceInterfaceData, 0, 0, &requiredLength, 0);
            predictedLength = requiredLength;

            deviceInterfaceDetailData = (PSP_INTERFACE_DEVICE_DETAIL_DATA) malloc(predictedLength);
            deviceInterfaceDetailData->cbSize = sizeof(SP_INTERFACE_DEVICE_DETAIL_DATA);

            if(!SetupDiGetInterfaceDeviceDetailW(hardwareDeviceInfo, &deviceInterfaceData, deviceInterfaceDetailData, predictedLength, &requiredLength, 0))
            {
                free(deviceInterfaceDetailData);
                SetupDiDestroyDeviceInfoList(hardwareDeviceInfo);
                return;
            }

            if(i == Number)
            {
                m_SlabControl.hHandle = CreateFile(deviceInterfaceDetailData->DevicePath, GENERIC_READ | GENERIC_WRITE, 0, 0, OPEN_EXISTING, FILE_FLAG_WRITE_THROUGH | FILE_FLAG_NO_BUFFERING, 0);

                free(deviceInterfaceDetailData);
                SetupDiDestroyDeviceInfoList(hardwareDeviceInfo);
                return;
            }

            free(deviceInterfaceDetailData);
        }
        else
            if(ERROR_NO_MORE_ITEMS == GetLastError())
            {
                SetupDiDestroyDeviceInfoList(hardwareDeviceInfo);
                return;
            }
    }
    while(true);
}

• SetupDiGetClassDevs & SetupDiEnumDeviceInterfaces - eug 10.01.05 14:04 [3994]
  • Пример рабочего кода - leo 10.01.05 19:16 [2688]
    • помогите "причесать" код, плиз [inside] - eug 16.01.05 15:19 [2855]
    • а где определён guid_slab_device_interface_cl ? - eug 10.01.05 22:08 [2162]
      • Re: - leo 11.01.05 00:00 [2060]
        • а как узнать GUID конкретного подключенного устройства ? - eug 11.01.05 00:24 [6092]
          • А не у всякого устройства есть GUID - amirul 11.01.05 12:32 [2299]
            • большое спасибо (-)  - eug 11.01.05 12:55 [1961]
  • непонятки с ClassGUID - eug 10.01.05 17:31 [2191]