public static void CloseHW() { if (ExtIO._isHWStarted) { ExtIO.StopHW(); } if (!(ExtIO._dllHandle == IntPtr.Zero) && ExtIO._isHWInit) { ExtIO.logInfo("CloseHW()"); try { ExtIO._closeHW(); } catch (Exception ex) { ExtIO.logInfo("CloseHW: " + ex.Message); } ExtIO._isHWInit = false; } }