public static extern bool ISD_UdpDataBroadcast( int handle, int port, ref ISD_TRACKING_DATA_TYPE trackingData, ref ISD_CAMERA_DATA_TYPE cameraData );
public static extern bool ISD_GetCameraData( IntPtr handle, // handle is ISD_TRACKER_HANDLE==IntTr out ISD_CAMERA_DATA_TYPE Data);
public static extern bool ISD_GetCameraData( int handle, ref ISD_CAMERA_DATA_TYPE Data );
public static extern bool ISD_GetCameraData( IntPtr handle, // handle is ISD_TRACKER_HANDLE==IntTr out ISD_CAMERA_DATA_TYPE Data);