点评:这个例子包括了这个控件几乎所有的操作,非常有参考价值.serialPort是在.net framework2.0中才有的东西,感觉这个东西和MSCOMM很相似.这里给出的例子是基于vb.net和CSHAPE
的,相应的可以在Cshape和c++中使用,基本上都是一样的.
Imports System
Imports System.IO.Ports
Imports System.Threading
Public Class PortChat
Shared _continue As Boolean
Shared _serialPort As SerialPort
Public Shared Sub Main()
Dim name As String
Dim message As String
Dim sComparer As StringComparer = StringComparer.OrdinalIgnoreCase
Dim readThread As Thread = New Thread(AddressOf Read)
' Create a new SerialPort object with default settings.
_serialPort = New SerialPort()
' Allow the user to set the appropriate properties.
_serialPort.PortName = SetPortName(_serialPort.PortName)
_serialPort.BaudRate = SetPortBaudRate(_serialPort.BaudRate)
_serialPort.Parity = SetPortParity(_serialPort.Parity)
_serialPort.DataBits = SetPortDataBits(_serialPort.DataBits)
_serialPort.StopBits = SetPortStopBits(_serialPort.StopBits)
_serialPort.Handshake = SetPortHandshake(_serialPort.Handshake)
' Set the read/write timeouts
_serialPort.ReadTimeout = 500
_serialPort.WriteTimeout = 500
_serialPort.Open()
_continue = True
readThread.Start()
Console.Write("Name: ")
name = Console.ReadLine()
Console.WriteLine("Type QUIT to exit")
While (_continue)
message = Console.ReadLine()
If sComparer.Equals("quit", message) Then
_continue = False
Else
_serialPort.WriteLine( _
String.Format("<{0}>: {1}", name, message))
End If
end while
readThread.Join()
_serialPort.Close()
End Sub
Public Shared Sub Read()
While (_continue)
Try
Dim message As String = _serialPort.ReadLine()
Console.WriteLine(message)
Catch ex As TimeoutException
' Do nothing
End Try
End While
End Sub
Public Shared Function SetPortName(ByVal defaultPortName As String) As String
Dim newPortName As String
Console.WriteLine("Available Ports:")
Dim s As String
For Each s In SerialPort.GetPortNames()
Console.WriteLine(" {0}", s)
Next s
Console.Write("COM port({0}): ", defaultPortName)
newPortName = Console.ReadLine()
If newPortName = "" Then
newPortName = defaultPortName
End If
Return newPortName
End Function
Public Shared Function SetPortBaudRate(ByVal defaultPortBaudRate As Integer) As Integer
Dim newBaudRate As String
Console.Write("Baud Rate({0}): ", defaultPortBaudRate)
newBaudRate = Console.ReadLine()
If newBaudRate = "" Then
newBaudRate = defaultPortBaudRate.ToString()
End If
Return Integer.Parse(newBaudRate)
End Function
Public Shared Function SetPortParity(ByVal defaultPortParity As Parity) As Parity
Dim newParity As String
Console.WriteLine("Available Parity options:")
Dim s As String
For Each s In [Enum].GetNames(GetType(Parity))
Console.WriteLine(" {0}", s)
Next s
Console.Write("Parity({0}):", defaultPortParity.ToString())
newparity = Console.ReadLine()
If newparity = "" Then
newparity = defaultPortParity.ToString()
End If
Return CType([Enum].Parse(GetType(Parity), newParity), Parity)
End Function
Public Shared Function SetPortDataBits(ByVal defaultPortDataBits As Integer) As Integer
Dim newDataBits As String
Console.Write("Data Bits({0}): ", defaultPortDataBits)
newDataBits = Console.ReadLine()
If newDataBits = "" Then
newDataBits = defaultPortDataBits.ToString()
End If
Return Integer.Parse(newDataBits)
End Function
Public Shared Function SetPortStopBits(ByVal defaultPortStopBits As StopBits) As StopBits
Dim newStopBits As String
Console.WriteLine("Available Stop Bits options:")
Dim s As String
For Each s In [Enum].GetNames(GetType(StopBits))
Console.WriteLine(" {0}", s)
Next s
Console.Write("Stop Bits({0}):", defaultPortStopBits.ToString())
newStopBits = Console.ReadLine()
If newStopBits = "" Then
newStopBits = defaultPortStopBits.ToString()
End If
Return CType([Enum].Parse(GetType(StopBits), newStopBits), StopBits)
End Function
Public Shared Function SetPortHandshake(ByVal defaultPortHandshake As Handshake) As Handshake
Dim newHandshake As String
Console.WriteLine("Available Handshake options:")
Dim s As String
For Each s In [Enum].GetNames(GetType(Handshake))
Console.WriteLine(" {0}", s)
Next s
Console.Write("Stop Bits({0}):", defaultPortHandshake.ToString())
newHandshake = Console.ReadLine()
If newHandshake = "" Then
newHandshake = defaultPortHandshake.ToString()
End If
Return CType([Enum].Parse(GetType(Handshake), newHandshake), Handshake)
End Function
End Class
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using System;
using System.IO.Ports;
using System.Threading;
public class PortChat
{
static bool _continue;
static SerialPort _serialPort;
public static void Main()
{
string name;
string message;
StringComparer stringComparer = StringComparer.OrdinalIgnoreCase;
Thread readThread = new Thread(Read);
// Create a new SerialPort object with default settings.
_serialPort = new SerialPort();
// Allow the user to set the appropriate properties.
_serialPort.PortName = SetPortName(_serialPort.PortName);
_serialPort.BaudRate = SetPortBaudRate(_serialPort.BaudRate);
_serialPort.Parity = SetPortParity(_serialPort.Parity);
_serialPort.DataBits = SetPortDataBits(_serialPort.DataBits);
_serialPort.StopBits = SetPortStopBits(_serialPort.StopBits);
_serialPort.Handshake = SetPortHandshake(_serialPort.Handshake);
// Set the read/write timeouts
_serialPort.ReadTimeout = 500;
_serialPort.WriteTimeout = 500;
_serialPort.Open();
_continue = true;
readThread.Start();
Console.Write("Name: ");
name = Console.ReadLine();
Console.WriteLine("Type QUIT to exit");
while (_continue)
{
message = Console.ReadLine();
if (stringComparer.Equals("quit", message))
{
_continue = false;
}
else
{
_serialPort.WriteLine(
String.Format("<{0}>: {1}", name, message) );
}
}
readThread.Join();
_serialPort.Close();
}
public static void Read()
{
while (_continue)
{
try
{
string message = _serialPort.ReadLine();
Console.WriteLine(message);
}
catch (TimeoutException) { }
}
}
public static string SetPortName(string defaultPortName)
{
string portName;
Console.WriteLine("Available Ports:");
foreach (string s in SerialPort.GetPortNames())
{
Console.WriteLine(" {0}", s);
}
Console.Write("COM port({0}): ", defaultPortName);
portName = Console.ReadLine();
if (portName == "")
{
portName = defaultPortName;
}
return portName;
}
public static int SetPortBaudRate(int defaultPortBaudRate)
{
string baudRate;
Console.Write("Baud Rate({0}): ", defaultPortBaudRate);
baudRate = Console.ReadLine();
if (baudRate == "")
{
baudRate = defaultPortBaudRate.ToString();
}
return int.Parse(baudRate);
}
public static Parity SetPortParity(Parity defaultPortParity)
{
string parity;
Console.WriteLine("Available Parity options:");
foreach (string s in Enum.GetNames(typeof(Parity)))
{
Console.WriteLine(" {0}", s);
}
Console.Write("Parity({0}):", defaultPortParity.ToString());
parity = Console.ReadLine();
if (parity == "")
{
parity = defaultPortParity.ToString();
}
return (Parity)Enum.Parse(typeof(Parity), parity);
}
public static int SetPortDataBits(int defaultPortDataBits)
{
string dataBits;
Console.Write("Data Bits({0}): ", defaultPortDataBits);
dataBits = Console.ReadLine();
if (dataBits == "")
{
dataBits = defaultPortDataBits.ToString();
}
return int.Parse(dataBits);
}
public static StopBits SetPortStopBits(StopBits defaultPortStopBits)
{
string stopBits;
Console.WriteLine("Available Stop Bits options:");
foreach (string s in Enum.GetNames(typeof(StopBits)))
{
Console.WriteLine(" {0}", s);
}
Console.Write("Stop Bits({0}):", defaultPortStopBits.ToString());
stopBits = Console.ReadLine();
if (stopBits == "")
{
stopBits = defaultPortStopBits.ToString();
}
return (StopBits)Enum.Parse(typeof(StopBits), stopBits);
}
public static Handshake SetPortHandshake(Handshake defaultPortHandshake)
{
string handshake;
Console.WriteLine("Available Handshake options:");
foreach (string s in Enum.GetNames(typeof(Handshake)))
{
Console.WriteLine(" {0}", s);
}
Console.Write("Stop Bits({0}):", defaultPortHandshake.ToString());
handshake = Console.ReadLine();
if (handshake == "")
{
handshake = defaultPortHandshake.ToString();
}
return (Handshake)Enum.Parse(typeof(Handshake), handshake);
}
}
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