C＃LPT inpout32.dll

Question

我沒有得到任何錯誤或異常。

一個窗口中的按鈕：

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旗艦版。

Answer 1

對於x64，您應該使用“InpOutx64.dll”。

訪問： http ： //www.highrez.co.uk/Downloads/InpOut32/default.htm在那里，您可以閱讀更多內容並查找樣本。

Answer 2

工作代碼，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);
            }
        }
    }
}

Answer 3

如果你弄錯了，你不會得到例外，最多是藍屏。 選擇以下之一：

• 你使用了錯誤的地址（0x3bc，0x2f8）
• 你錯誤地連接了LED
• 你闖進錯誤的博物館拿到硬件

這個問題記錄太差，無法幫助你解決這個問題。

Answer 4

我解決了舊筆記本電腦上Windows 2000上的LPT端口問題，無法設置數據端口（pin2-pin9）。

使用此導入的功能：

[DllImport("inpout32.dll", EntryPoint = "Out32")]
public static extern void Out32(int address, int value);

每次重啟或重新啟動Windows后，我都要調用此行：

Out32(0x378 + 2, 0x00);

這樣端口就能正常工作。 我認為問題出在雙向設置（控制端口位於0x37A的第6位）。