private void cbCom_SelectedIndexChanged(object sender, EventArgs e)
{
string name = cbCom.Text;
if (name == "" || cfg.select_serial_port == name)
{
return;
}
string portName = SerialPortTool.GetSerialPortByName(name);
if (portName == null)
{
showRedTip("无效端口");
return;
}
}
private void init_Serial_List()
{
List <string> sl = SerialPortTool.GetSerialPortList();
if (sl == null)
{
showRedTip("读取串口列表失败");
return;
}
for (int i = 0; i < sl.Count; i++)
{
string com = sl[i];
if (cbCom.Items.IndexOf(com) == -1)
{
cbCom.Items.Add(com);
if (cfg.select_serial_port == com)
{
cbCom.SelectedItem = com;
}
}
}
for (int i = cbCom.Items.Count - 1; i >= 0; i--)
{
string com = cbCom.Items[i].ToString();
if (sl.IndexOf(com) == -1)
{
if (cbCom.SelectedIndex == i)
{
cbCom.Enabled = true;
btnStartSerial.ImageIndex = 0;
toolTip1.SetToolTip(btnStartSerial, "打开串口");
showRedTip("串口被移除");
}
cbCom.Items.RemoveAt(i);
}
}
}
//通过WMI获取COM端口
public static List <string> GetSerialPortList()
{
return(SerialPortTool.MulGetHardwareInfo(HardwareEnum.Win32_SerialPort, "Name"));
}
private bool open_Serial()
{
if (serialPort.IsOpen)
{
return(true);
}
int baud;
if (!int.TryParse(cbBits.Text, out baud))
{
return(false);
}
try {
serialPort.PortName = SerialPortTool.GetSerialPortByName(cbCom.Text);
serialPort.BaudRate = baud;
serialPort.Open();
} catch (System.IO.IOException ioe) {
showRedTip(ioe.Message);
} catch (System.UnauthorizedAccessException ioe) {
showRedTip(ioe.Message);
return(false);
} catch (System.Exception e) {
showRedTip(e.Message);
return(false);
}
if (!serialPort.IsOpen)
{
showRedTip(serialPort.PortName + ": 打开串口失败");
return(false);
}
btnStartSerial.ImageIndex = 1;
cbCom.Enabled = false;
toolTip1.SetToolTip(btnStartSerial, "关闭串口");
showSuccessTip(serialPort.PortName + ": 打开成功, 速率: " + baud);
int index = cfg.serial_baud_rate.IndexOf(baud.ToString());
if (index == -1 || baud != cfg.select_baud_rate || cbCom.Text != cfg.select_serial_port)
{
if (index == -1)
{
//添加新的速率到列表
for (int i = cfg.serial_baud_rate.Count - 1; i >= 0; i--)
{
int br = 0;
if (int.TryParse(cfg.serial_baud_rate[i], out br))
{
if (br == baud) //事实上不可能，因为前面 index = -1
{
break;
}
if (baud > br)
{
cfg.serial_baud_rate.Insert(i + 1, baud.ToString());
cbBits.Items.Insert(i + 1, baud.ToString());
break;
}
if (i == 0)
{
cfg.serial_baud_rate.Insert(0, baud.ToString());
cbBits.Items.Insert(0, baud.ToString());
}
}
else
{
cfg.serial_baud_rate.RemoveAt(i);
cbBits.Items.RemoveAt(i);
}
}
}
cfg.select_baud_rate = baud;
cfg.select_serial_port = cbCom.Text;
cfg.Save();
}
recvInfoBox.Text = "接收: 0 字节";
sendInfoBox.Text = "发送: 0 字节";
return(true);
}