[英]C# LPT inpout32.dll
我没有得到任何错误或异常。
一个窗口中的按钮:
private void button1_Click(object sender, EventArgs e)
{
ControlPort.Output(0x378, 0xff);
}
和inpout.dll接口:
class ControlPort
{
[DllImport("inpout32.dll", EntryPoint = "Out32")]
public static extern void Output(int adress, int value);
}
怎么了? D2上的LED一直亮着。
我有Windows 7 x64旗舰版。
对于x64,您应该使用“InpOutx64.dll”。
访问: http : //www.highrez.co.uk/Downloads/InpOut32/default.htm在那里,您可以阅读更多内容并查找样本。
工作代码,如果有人需要它。
using System;
using System.Runtime.InteropServices;
namespace ParallelPort
{
public class PortAccess
{
//inpout.dll
[DllImport("inpout32.dll")]
private static extern UInt32 IsInpOutDriverOpen();
[DllImport("inpout32.dll")]
private static extern void Out32(short PortAddress, short Data);
[DllImport("inpout32.dll")]
private static extern char Inp32(short PortAddress);
[DllImport("inpout32.dll")]
private static extern void DlPortWritePortUshort(short PortAddress, ushort Data);
[DllImport("inpout32.dll")]
private static extern ushort DlPortReadPortUshort(short PortAddress);
[DllImport("inpout32.dll")]
private static extern void DlPortWritePortUlong(int PortAddress, uint Data);
[DllImport("inpout32.dll")]
private static extern uint DlPortReadPortUlong(int PortAddress);
[DllImport("inpoutx64.dll")]
private static extern bool GetPhysLong(ref int PortAddress, ref uint Data);
[DllImport("inpoutx64.dll")]
private static extern bool SetPhysLong(ref int PortAddress, ref uint Data);
//inpoutx64.dll
[DllImport("inpoutx64.dll", EntryPoint = "IsInpOutDriverOpen")]
private static extern UInt32 IsInpOutDriverOpen_x64();
[DllImport("inpoutx64.dll", EntryPoint = "Out32")]
private static extern void Out32_x64(short PortAddress, short Data);
[DllImport("inpoutx64.dll", EntryPoint = "Inp32")]
private static extern char Inp32_x64(short PortAddress);
[DllImport("inpoutx64.dll", EntryPoint = "DlPortWritePortUshort")]
private static extern void DlPortWritePortUshort_x64(short PortAddress, ushort Data);
[DllImport("inpoutx64.dll", EntryPoint = "DlPortReadPortUshort")]
private static extern ushort DlPortReadPortUshort_x64(short PortAddress);
[DllImport("inpoutx64.dll", EntryPoint = "DlPortWritePortUlong")]
private static extern void DlPortWritePortUlong_x64(int PortAddress, uint Data);
[DllImport("inpoutx64.dll", EntryPoint = "DlPortReadPortUlong")]
private static extern uint DlPortReadPortUlong_x64(int PortAddress);
[DllImport("inpoutx64.dll", EntryPoint = "GetPhysLong")]
private static extern bool GetPhysLong_x64(ref int PortAddress, ref uint Data);
[DllImport("inpoutx64.dll", EntryPoint = "SetPhysLong")]
private static extern bool SetPhysLong_x64(ref int PortAddress, ref uint Data);
private bool _X64;
private short _PortAddress;
public PortAccess(short PortAddress)
{
_X64 = false;
_PortAddress = PortAddress;
try
{
uint nResult = 0;
try
{
nResult = IsInpOutDriverOpen();
}
catch (BadImageFormatException)
{
nResult = IsInpOutDriverOpen_x64();
if (nResult != 0)
_X64 = true;
}
if (nResult == 0)
{
throw new ArgumentException("Unable to open InpOut32 driver");
}
}
catch (DllNotFoundException)
{
throw new ArgumentException("Unable to find InpOut32.dll");
}
}
//Public Methods
public void Write(short Data)
{
if (_X64)
{
Out32_x64(_PortAddress, Data);
}
else
{
Out32(_PortAddress, Data);
}
}
public byte Read()
{
if (_X64)
{
return (byte)Inp32_x64(_PortAddress);
}
else
{
return (byte)Inp32(_PortAddress);
}
}
}
}
如果你弄错了,你不会得到例外,最多是蓝屏。 选择以下之一:
这个问题记录太差,无法帮助你解决这个问题。
我解决了旧笔记本电脑上Windows 2000上的LPT端口问题,无法设置数据端口(pin2-pin9)。
使用此导入的功能:
[DllImport("inpout32.dll", EntryPoint = "Out32")]
public static extern void Out32(int address, int value);
每次重启或重新启动Windows后,我都要调用此行:
Out32(0x378 + 2, 0x00);
这样端口就能正常工作。 我认为问题出在双向设置(控制端口位于0x37A的第6位)。
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