Example #1
0
        private bool SetDCBState(IntPtr hComDevice)
        {
            if ( hComDevice.ToInt32() <= 0)
            {
                return false;
            }
            try
            {
                DCB lpDCB = new DCB();
                NativeMethods.GetCommState(hComDevice, ref lpDCB);
                if (m_BaudRate != SerialBaudRate.brCustom)
                {
                    lpDCB.BaudRate = (int)m_BaudRate;
                }
                else
                {
                    lpDCB.BaudRate = m_CustomBaudRate;
                }
                lpDCB.ByteSize = (byte)m_DataWidth;
                lpDCB.StopBits = (byte)m_StopBits;
                lpDCB.Parity = (byte)m_ParityBits;
                lpDCB.Flags = 1;
                if (m_EnableDTROnOpen)
                {
                    lpDCB.Flags |= 0x10;
                }
                if (m_EnableRTSOnOpen)
                {
                    lpDCB.Flags |= 0x1000;
                }
                switch (m_HwFlowControl)
                {
                    case SerialHardwareFlowControl.hfRTS:
                        lpDCB.Flags |= 0x1000;
                        break;

                    case SerialHardwareFlowControl.hfRTSCTS:
                        lpDCB.Flags = (lpDCB.Flags | 4) | 0x2000;
                        break;
                }
                switch (m_SwFlowControl)
                {
                    case SerialSoftwareFlowControl.sfXONXOFF:
                        lpDCB.Flags = (lpDCB.Flags | 0x100) | 0x200;
                        break;
                }
                lpDCB.XonChar = '\x0011';
                lpDCB.XoffChar = '\x0013';
                return (NativeMethods.SetCommState(hComDevice, ref lpDCB) != 0);
            }
            catch
            {
                return false;
            }
        }
Example #2
0
 internal static extern int SetCommState(IntPtr hCommDev, ref DCB lpDCB);