Exemple #1
0
        internal Guid GetProperty(Native.SP_DEVINFO_DATA devData, int property, Guid defaultValue)
        {
            if (devData == null)
            {
                throw new ArgumentNullException("devData");
            }

            int propertyRegDataType = 0;
            int requiredSize;
            int propertyBufferSize = Marshal.SizeOf(typeof(Guid));

            IntPtr propertyBuffer = Marshal.AllocHGlobal(propertyBufferSize);

            if (!Native.SetupDiGetDeviceRegistryProperty(_deviceInfoSet,
                                                         devData,
                                                         property,
                                                         out propertyRegDataType,
                                                         propertyBuffer,
                                                         propertyBufferSize,
                                                         out requiredSize))
            {
                Marshal.FreeHGlobal(propertyBuffer);
                int error = Marshal.GetLastWin32Error();
                if (error != Native.ERROR_INVALID_DATA)
                {
                    throw new Win32Exception(error);
                }
                return(defaultValue);
            }

            Guid value = (Guid)Marshal.PtrToStructure(propertyBuffer, typeof(Guid));

            Marshal.FreeHGlobal(propertyBuffer);
            return(value);
        }
Exemple #2
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        internal Device(DeviceClass deviceClass, Native.SP_DEVINFO_DATA deviceInfoData, string path, int index)
        {
            if (deviceClass == null)
            {
                throw new ArgumentNullException("deviceClass");
            }

            if (deviceInfoData == null)
            {
                throw new ArgumentNullException("deviceInfoData");
            }

            _deviceClass    = deviceClass;
            _path           = path; // may be null
            _deviceInfoData = deviceInfoData;
            _index          = index;
        }
Exemple #3
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        internal Native.SP_DEVINFO_DATA GetInfo(int dnDevInst)
        {
            StringBuilder sb = new StringBuilder(1024);
            int           hr = Native.CM_Get_Device_ID(dnDevInst, sb, sb.Capacity, 0);

            if (hr != 0)
            {
                throw new Win32Exception(hr);
            }

            Native.SP_DEVINFO_DATA devData = new Native.SP_DEVINFO_DATA();
            devData.cbSize = Marshal.SizeOf(typeof(Native.SP_DEVINFO_DATA));
            if (!Native.SetupDiOpenDeviceInfo(_deviceInfoSet, sb.ToString(), IntPtr.Zero, 0, devData))
            {
                throw new Win32Exception(Marshal.GetLastWin32Error());
            }

            return(devData);
        }
Exemple #4
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 internal Volume(DeviceClass deviceClass, Native.SP_DEVINFO_DATA deviceInfoData, string path, int index)
     : base(deviceClass, deviceInfoData, path, index)
 {
 }
		internal Native.SP_DEVINFO_DATA GetInfo(int dnDevInst) {
			StringBuilder sb = new StringBuilder(1024);
			int hr = Native.CM_Get_Device_ID(dnDevInst, sb, sb.Capacity, 0);
			if (hr != 0)
				throw new Win32Exception(hr);

			Native.SP_DEVINFO_DATA devData = new Native.SP_DEVINFO_DATA();
			devData.cbSize = Marshal.SizeOf(typeof(Native.SP_DEVINFO_DATA));
			if (!Native.SetupDiOpenDeviceInfo(_deviceInfoSet, sb.ToString(), IntPtr.Zero, 0, devData))
				throw new Win32Exception(Marshal.GetLastWin32Error());

			return devData;
		}
Exemple #6
0
 internal virtual Device CreateDevice(DeviceClass deviceClass, Native.SP_DEVINFO_DATA deviceInfoData, string path, int index)
 {
     return(new Device(deviceClass, deviceInfoData, path, index));
 }
 internal override Device CreateDevice(DeviceClass deviceClass, Native.SP_DEVINFO_DATA deviceInfoData, string path, int index)
 {
     return(new Volume(deviceClass, deviceInfoData, path, index));
 }