internal static extern V_RESULT WaitForHistoricalDataWithCondition( IntPtr _this, string filter, IntPtr _params, uint paramsLength, os_timeW minSourceTime, os_timeW maxSourceTime, int max_samples, int max_instances, int max_samples_per_instance, long timeout);
public static extern V_RESULT Write( IntPtr _this, SampleCopyInDelegate copy, IntPtr data, os_timeW timestamp, long handle);
public static extern V_RESULT RegisterInstance( IntPtr _this, SampleCopyInDelegate copy, IntPtr data, os_timeW timestamp, ref long handle);