using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows.Forms;//MessageBox需要
using System.Runtime.InteropServices;//加动态链接库需要
//菜农HotPower@126.com 2008.11.12 于雁塔村
namespace WindowsFormsApplication2
{
#region C#下采用索引对WinIO的封装类(WinIO.cs)
/*
应用时应该在Form1.cs中加入:
private WinIO WinIOPort = new WinIO();
例: WinIOPort[0x378] = 0x55;
x = WinIOPort[0x379, 2];
*/
public class WinIO
{
//动态链接库的引用
[DllImport("winio.dll")]
public static extern bool InitializeWinIo();
[DllImport("winio.dll")]
public static extern void ShutdownWinIo();
[DllImport("winio.dll")]
public static extern bool GetPortVal(IntPtr wPortAddr, out uint pdwPortVal, byte
bSize);
[DllImport("winio.dll")]
public static extern bool SetPortVal(IntPtr wPortAddr, IntPtr dwPortVal, byte
bSize);
/*
//以下是WinIO与并口无关的函数
[DllImport("winio.dll")]
public static extern byte MapPhysToLin(byte pbPhysAddr, uint dwPhysSize,
IntPtr PhysicalMemoryHandle);
[DllImport("winio.dll")]
public static extern bool UnmapPhysicalMemory(IntPtr
PhysicalMemoryHandle, byte pbLinAddr);
[DllImport("winio.dll")]
public static extern bool GetPhysLong(IntPtr pbPhysAddr, byte
pdwPhysVal);
[DllImport("winio.dll")]
public static extern bool SetPhysLong(IntPtr pbPhysAddr, byte
dwPhysVal);
[DllImport("user32.dll")]
public static extern int MapVirtualKey(uint Ucode, uint uMapType);
*/
//属性字段
private bool enable = false;//WinIO不可用
private bool error = false;//读写出错字段
public WinIO()
{//构造函数(自动运行)
try
{
enable = InitializeWinIo();//加载WinIO
}
catch (System.Exception error)
{//WinIO加载失败异常处理
MessageBox.Show(error.Message, "系统提示", MessageBoxButtons.OK,
MessageBoxIcon.Error);
}
}
~WinIO()
{//析构函数(自动运行)
if (enable)
{//成功加载WinIO
ShutdownWinIo();//卸载WinIO
}
}
public bool Enable
{//Enable只读属性
get
{
return enable;
}
}
public bool Error
{//Error只读属性
get
{
return error;
}
}
public byte this[uint index]//byte读写端口
{//数组索引:
get
{//例如 x = WioIOPort[0x378]; 等效:x = WioIOPort[0x378, sizeof(byte)];
uint val;//WinIo要求dword
error = GetPortVal((IntPtr)index, out val, sizeof(byte));
return (byte)val;
}
set
{//例如 WioIOPort[0x378] = 0xff; 等效:WioIOPort[0x378, sizeof(byte)] = 0xff;
error = SetPortVal((IntPtr)index, (IntPtr)value, sizeof(byte));
}
}
public uint this[uint index, byte size]//可用byte,word,dword读写端口
{//数组索引,size=1/2/4=sizeof(byte/UInt16/UInt32)
get
{//例如 x = WioIOPort[0x378, sizeof(UInt16)];
uint val;//WinIo要求dword
error = GetPortVal((IntPtr)index, out val, size);
return val;
}
set
{//例如 WioIOPort[0x378, sizeof(UInt32)] = 0x12345678;
error = SetPortVal((IntPtr)index, (IntPtr)value, size);
}
}
}
#endregion
}
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