internal extern static bool SetCommTimeouts( SafeHandle hFile, ref COMMTIMEOUTS lpCommTimeouts );
internal extern static Boolean SetCommTimeouts( SafeHandle hFile, ref COMMTIMEOUTS lpCommTimeouts );
internal extern static bool SetCommTimeouts( SafeHandle hFile, ref COMMTIMEOUTS lpCommTimeouts );
internal extern static Boolean SetCommTimeouts( SafeHandle hFile, ref COMMTIMEOUTS lpCommTimeouts );