C#串口操作(国外网站看来的，共享一下)
前一阵，从国外网站看到一个用C#来操作串口的类。下载下来试了一下，觉得不错。共享一下。
/*
* Author: Marcus Lorentzon, 2001
* d98malor@dtek.chalmers.se
*
* Freeware: Please do not remove this header
*
* File: SerialStream.cs
*
* Description: Implements a Stream for asynchronous
* transfers and COMM. Stream version.
*
* Version: 2.4
*
*/
#region Using
using System;
using System.IO;
using System.Threading;
using System.Runtime.InteropServices;
using System.ComponentModel;
#endregion Using
namespace LoMaN.IO {
public class SerialStream : Stream {
#region Attributes
private IOCompletionCallback m_IOCompletionCallback;
private IntPtr m_hFile = IntPtr.Zero;
private string m_sPort;
private bool m_bRead;
private bool m_bWrite;
#endregion Attributes
#region Properties
public string Port {
get {
return m_sPort;
}
set {
if (m_sPort != value) {
Close();
Open(value);
}
}
}
public override bool CanRead {
get {
return m_bRead;
}
}
public override bool CanWrite {
get {
return m_bWrite;
}
}
public override bool CanSeek {
get {
return false;
}
}
public bool Closed {
get {
return m_hFile.ToInt32() 0;
}
}
public bool Dsr {
get {
uint status;
if (!GetCommModemStatus(m_hFile, out status)) {
throw new Win32Exception();
}
return (status & MS_DSR_ON) > 0;
}
}
public bool Ring {
get {
uint status;
if (!GetCommModemStatus(m_hFile, out status)) {
throw new Win32Exception();
}
return (status & MS_RING_ON) > 0;
}
}
public bool Rlsd {
get {
uint status;
if (!GetCommModemStatus(m_hFile, out status)) {
更新时间：2009-09-10
