DWORD lgLcdEnumerate(int connection, int index,
out lgLcdDeviceDesc description);
DWORD lgLcdEnumerate(int connection, int index, out lgLcdDeviceDesc description);
/// <summary>
/// The lgLcdEnumerate() function is used to retrieve information about all the
/// currently attached and supported Logitech LCD devices.
/// </summary>
/// <remarks>
/// The connection parameter is returned by a call to lgLcdConnect().
///
/// To enumerate the attached devices, you should call lgLcdEnumerate() and
/// pass in 0 as index parameter. On subsequent calls, increase the index
/// parameter by 1 until the function returns ERROR_NO_MORE_ITEMS.
/// </remarks>
/// <param name="connection">Specifies the connection that this enumeration refers to.</param>
/// <param name="index">Specifies which device information is requested. See Remarks.</param>
/// <param name="description">Points to an lgLcdDeviceDesc structure which will be filled with information about the device.</param>
/// <returns>
/// If the function succeeds, the return value is ERROR_SUCCESS.
/// If the function fails, the return value can be one of the following:
///
/// ERROR_SERVICE_NOT_ACTIVE
/// lgLcdInit() has not been called yet.
/// ERROR_NO_MORE_ITEMS
/// There are no more devices to be enumerated. If this error is returned on the first
/// call, then there are no devices attached.
/// ERROR_INVALID_PARAMETER
/// The description pointer is NULL.
/// Xxx
/// Other (system) error with appropriate error code.
/// </returns>
[DllImport("LgLcd.dll")] private static extern int lgLcdEnumerate(int connection, int index, out lgLcdDeviceDesc description);
/// <summary>
/// The lgLcdEnumerate() function is used to retrieve information about all the
/// currently attached and supported Logitech LCD devices.
/// </summary>
/// <remarks>
/// The connection parameter is returned by a call to lgLcdConnect().
///
/// To enumerate the attached devices, you should call lgLcdEnumerate() and
/// pass in 0 as index parameter. On subsequent calls, increase the index
/// parameter by 1 until the function returns ERROR_NO_MORE_ITEMS.
/// </remarks>
/// <param name="connection">Specifies the connection that this enumeration refers to.</param>
/// <param name="index">Specifies which device information is requested. See Remarks.</param>
/// <param name="description">Points to an lgLcdDeviceDesc structure which will be filled with information about the device.</param>
/// <returns>
/// If the function succeeds, the return value is ERROR_SUCCESS.
/// If the function fails, the return value can be one of the following:
///
/// ERROR_SERVICE_NOT_ACTIVE
/// lgLcdInit() has not been called yet.
/// ERROR_NO_MORE_ITEMS
/// There are no more devices to be enumerated. If this error is returned on the first
/// call, then there are no devices attached.
/// ERROR_INVALID_PARAMETER
/// The description pointer is NULL.
/// Xxx
/// Other (system) error with appropriate error code.
/// </returns>
[DllImport("LgLcd.dll")] private static extern int lgLcdEnumerate(int connection, int index, out lgLcdDeviceDesc description);