Question

Upfront：我还是C＃的新手。我已经完成了所有我可以做到的研究。这是我第一次在网上寻求帮助。

我正在尝试在C＃中创建一个位于后台并接收扫描仪输入的程序。根据我迄今为止所研究的内容，扫描仪的作用类似于键盘楔形。这是作为控制台应用程序创建的。该程序应该将扫描的部件号与先前扫描的部件号进行比较。如果新零件编号与最后一个零件编号不同，则会发送一封电子邮件，说明前一个零件编号已完成并已输出，并且新零件编号正在开始生产。除2个问题外，它有效：

我尝试使用Hook来拦截输入。我的资源在哪里： https://blogs.msdn.microsoft.com/toub/2006/05/03/low-level-keyboard-hook-in-c/

http://null-byte.wonderhowto.com/how-to/create-simple-hidden-console-keylogger-c-sharp-0132757/

虽然我的代码在后台发送输入到控制台，但它每行打印一个字符以及我遇到的另一个问题...

将其输入到空白控制台，每行一个字符，或者在没有挂钩功能的情况下运行其余代码。

我已经在这个项目上工作了好几天而且我很茫然。任何帮助将不胜感激......

using System;
using System.Diagnostics;
using System.Windows.Forms;
using System.Configuration;
using System.IO;
using System.Net;
using System.Net.Mail;
using System.Runtime.InteropServices;
using Outlook = Microsoft.Office.Interop.Outlook;
using System.Windows.Input;

namespace Test1
{

    class Program
    {           
        private const int WH_KEYBOARD_LL = 13;
        private const int WM_KEYDOWN = 0x0100;
        public static LowLevelKeyboardProc _proc = HookCallBack;
        public static IntPtr _hookID = IntPtr.Zero;



    #region Import DLLs 
    [DllImport("user32.dll", CharSet = CharSet.Auto,SetLastError = true)]
    private static extern IntPtr SetWindowsHookEx(int idHook, LowLevelKeyboardProc Ipfn, IntPtr hMod, uint dwThreadId);

    [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
    [return: MarshalAs(UnmanagedType.Bool)]
    private static extern bool UnhookWindowsHookEx(IntPtr hhk);

    [DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
    private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, IntPtr IParam);

    [DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
    private static extern IntPtr GetModuleHandle(string IpModuleName);

    #endregion

    #region Key Tracker Delegates/Functions

    public static IntPtr SetHook(LowLevelKeyboardProc proc)
        {
            using (Process curProcess = Process.GetCurrentProcess())
            using (ProcessModule curModule = curProcess.MainModule)
            {
                return SetWindowsHookEx(WH_KEYBOARD_LL, proc, GetModuleHandle(curModule.ModuleName),0);
            }
        }

    public delegate IntPtr LowLevelKeyboardProc(int nCode, IntPtr wParam, IntPtr IParam);   

        public static class PreviousDriver
        {
            public static string previousDriver{get;set;}
        }
    #endregion

    #region  Email functionality
        public static void CreateMail()
        {
            Microsoft.Office.Interop.Outlook.Application app = new Microsoft.Office.Interop.Outlook.Application();

            Microsoft.Office.Interop.Outlook.MailItem mailItem = (Outlook.MailItem)app.CreateItem(Microsoft.Office.Interop.Outlook.OlItemType.olMailItem);

            mailItem.Subject="Driver Update";
            //mailItem.To = ; email here
            mailItem.Body = "Your " + PreviousDriver.previousDriver + "is finished and is out for delivery.\n\n";
            mailItem.Display(false);
            mailItem.Send();

        }

    #endregion

        public static class CurrentDriverCount
        {
            public static int currentDriverCount{get;set;}
        }


        #region Main
        public static void Main()
        {

        //var handle = GetConsoleWindow();

        //ShowWindow(handle, SW_HIDE);

        _hookID = SetHook(_proc);

        Application.Run();

        UnhookWindowsHookEx(_hookID);

        DriverStart();

        }

        #endregion

        #region DriverStart()

        public static void DriverStart()
        {
            //string PreviousDriver = null;


                Console.WriteLine("What is your driver?\n");


                string CurrentDriver = Console.ReadLine(); //Scan driver


                Console.WriteLine("Your current driver is " + CurrentDriver + "\n");

                if(CurrentDriver == PreviousDriver.previousDriver)
                {
                    //When it's the same driver

                    Console.WriteLine("Your previous driver was " + PreviousDriver.previousDriver + "\n");

                    CurrentDriverCount.currentDriverCount +=1;

                    Console.WriteLine("Your driver count is " + CurrentDriverCount.currentDriverCount + ".\n");

                    DriverStart();
                } else {

                    //When the driver is different

                    Console.WriteLine("Your " + PreviousDriver.previousDriver + "is finished and is out for delivery.\n\n" +
                                      "Your "+ CurrentDriver + "are starting now!\n");

                    CreateMail();

                    PreviousDriver.previousDriver = CurrentDriver;

                    CurrentDriverCount.currentDriverCount = 0;
                    CurrentDriverCount.currentDriverCount +=1;

                    Console.WriteLine("Your driver count is " + CurrentDriverCount.currentDriverCount + ".\n");

                    DriverStart();

                }
        }

        #endregion



    private static IntPtr HookCallBack(int nCode, IntPtr wParam, IntPtr IParam)
    {
        if (nCode >= 0 && wParam == (IntPtr)WM_KEYDOWN)
        {
            int vkCode = Marshal.ReadInt32(IParam);
            Console.WriteLine((Keys)vkCode);
            StreamWriter sw = new StreamWriter(Application.StartupPath,true);
            sw.Write((Keys)vkCode);
            sw.Close();


        }
        return CallNextHookEx(_hookID, nCode, wParam, IParam);
    }

    }
}

C＃将输入发送到未对焦的窗口

0 个答案: