C#实现 -- 自动获取剪贴板的文字并且自动发送〇、背景一、方法二、实现三、测试四、改进

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概述

〇、背景

在某个时刻，总有那么些时刻或者那么些人恶搞一下，就是无情的进行消息轰炸，所以就想着是不是可以搞一个工具出来。

在 windows 下用 C# 编写的一个自动发消息的工具。

一、方法

主要的功能就是模拟 Ctrl + V 粘贴，然后模拟 Enter （回车）按键将消息发送出去。

二、实现

2.1、界面效果

开发界面显示如下图所示。

界面效果图

2.2、实现代码

实现的代码如下（纯 C# ）。

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        [DllImport("user32.dll", EntryPoint = "FindWindow", CharSet = CharSet.Auto)]
        private extern static IntPtr FindWindow(string lpClassName, string lpWindowName);

        [DllImport("user32.dll", CharSet = CharSet.Auto)]
        public static extern int PostMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);

        [DllImport("user32.dll", EntryPoint = "SendMessage")]
        public static extern int SendMessage(IntPtr hwnd, int wMsg, uint wParam, uint lParam);

        [DllImport("user32.dll")]
        private static extern void keybd_event(byte bVk, byte bScan, uint dwFlags, uint dwExtraInfo);


        public const int WM_CLOSE = 0x10;

        #region 预定义参数

        #endregion
        // 键盘虚拟键值
        private const int VK_CONTROL = 0X11;
        private const int VK_MENU = 0X12;        private const int VK_V = 0X56;          // 'S'
        private const int VK_F4 = 0X73;

        private const int KEYEVENTF_EXTENDEDKEY = 0x1;
        private const int KEYEVENTF_KEYUP = 0x2;

        // WindowMessage 参数
        private const int WM_KEYDOWN = 0X100;
        private const int WM_KEYUP = 0X101;
        private const int WM_SYSCHAR = 0X106;
        private const int WM_SYSKEYUP = 0X105;
        private const int WM_SYSKEYDOWN = 0X104;
        private const int WM_CHAR = 0X102;
        private const int WM_DOWN = 0X0028;
        private const int WM_ENTER = 0X000D;
        private const int WM_QUIT = 0X0012;

        // keybd_event 状态参数
        public const int WM_SYSCOMMAND = 0x111;
        public const int SC_MINIMIZE = 0xF020;
        public const int SC_MAXIMIZE = 0xF030;
        public const int VK_RETURN = 0x0D;


        UInt32 time = 3000;
        public Form1()
        {
            InitializeComponent();

            btn_Statt_Stop.ForeColor = Color.DarkGreen;
           
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            //this.Show(); // 将此界面显示在最前端
            // this.Activate(); // 激活此界面
            //this.Focus(); // 界面获取焦点
            keybd_event(VK_CONTROL, 0, 0, 0);                   // 模拟 Ctrl 按键被按下
            keybd_event(VK_V, 0, 0, 0);
            Thread.Sleep(1);

            keybd_event(VK_V, 0, KEYEVENTF_KEYUP, 0); // 模拟 V 键被按下
            keybd_event(VK_CONTROL, 0, KEYEVENTF_KEYUP, 0);
            Thread.Sleep(1);

            keybd_event(VK_RETURN, 0, 0, 0);     // 模拟 Enter 按键被按下 
            keybd_event(VK_RETURN, 0, KEYEVENTF_KEYUP, 0);
        }

        private void btn_Statt_Stop_Click(object sender, EventArgs e)
        {
            // 转换定时器的设置时间
            time = Convert.ToUInt32(numericUpDown1.Text) * 1000;
            timer1.Interval = (int)time; // 设置定时器的时间

            if (btn_Statt_Stop.ForeColor == Color.DarkGreen) //判断当前定时器是否启动
            {
                timer1.Enabled = true;
                btn_Statt_Stop.ForeColor = Color.DarkRed;
                btn_Statt_Stop.Text = "停  止";
            }
            else
            {
                timer1.Enabled = false;
                btn_Statt_Stop.ForeColor = Color.DarkGreen;
                btn_Statt_Stop.Text = "启  动";
            }
        }

        private void Form1_Load(object sender, EventArgs e)
        {

        }
    }
}