public static extern UInt32 LPR_SetShutterValue(IntPtr pHandle, SHUTTER_PARAMS Value);
public static extern UInt32 LPR_SetShutterValue(IntPtr pHandle, SHUTTER_PARAMS Value);
public static extern UInt32 LPR_GetShutterValue(IntPtr pHandle , ref SHUTTER_PARAMS pValue);
public static extern UInt32 LPR_GetShutterValue(IntPtr pHandle, ref SHUTTER_PARAMS pValue);