C#实现模拟鼠标点击事件（点击桌面的其他程序 ）

注释感觉已经很清楚了，有不懂的欢迎评论

 1 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 WindowsFormsApp1
 {
     public partial class Form1 : Form
     {
         public Form1()
         {
             InitializeComponent();
             this.Hide();
         }
         /// <summary>
         /// 引用user32.dll动态链接库（windows api），
         /// 使用库中定义 API：SetCursorPos
         /// </summary>
         [DllImport("user32.dll")]
         private static extern int SetCursorPos(int x, int y);
         /// <summary>
         /// 移动鼠标到指定的坐标点
         /// </summary>
         public void MoveMouseToPoint(Point p)
         {
             SetCursorPos(p.X, p.Y);
         }
         /// <summary>
         /// 设置鼠标的移动范围
         /// </summary>
         public void SetMouseRectangle(Rectangle rectangle)
         {
             System.Windows.Forms.Cursor.Clip = rectangle;
         }
         /// <summary>
         /// 设置鼠标位于屏幕中心
         /// </summary>
         public void SetMouseAtCenterScreen()
         {
             //当前屏幕的宽高
             int winHeight = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Height;
             int winWidth = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Width;
             //设置鼠标的x，y位置
             loginx = winWidth /  * ;
             loginy = winHeight /  + ;
             Point centerP = new Point(loginx, loginy);
             //移动鼠标
             MoveMouseToPoint(centerP);
         }
         //点击事件
         [DllImport("User32")]
         //下面这一行对应着下面的点击事件
         //    public extern static void mouse_event(int dwFlags, int dx, int dy, int dwData, IntPtr dwExtraInfo);
         public extern static void mouse_event(int dwFlags, int dx, int dy, int cButtons, int dwExtraInfo);
         public const int MOUSEEVENTF_LEFTDOWN = 0x2;
         public const int MOUSEEVENTF_LEFTUP = 0x4;
         public enum MouseEventFlags
         {
             Move = 0x0001, //移动鼠标
             LeftDown = 0x0002,//模拟鼠标左键按下
             LeftUp = 0x0004,//模拟鼠标左键抬起
             RightDown = 0x0008,//鼠标右键按下
             RightUp = 0x0010,//鼠标右键抬起
             MiddleDown = 0x0020,//鼠标中键按下
             MiddleUp = 0x0040,//中键抬起
             Wheel = 0x0800,
             Absolute = 0x8000//标示是否采用绝对坐标
         }
         //鼠标将要到的x，y位置
         public static int loginx, loginy;
         private void Form1_Load(object sender, EventArgs e)
         {

             //移动鼠标
             SetMouseAtCenterScreen();

             //mouse_event((int)(MouseEventFlags.LeftDown | MouseEventFlags.Absolute), loginx, loginy, 0, IntPtr.Zero);

             //mouse_event((int)(MouseEventFlags.LeftUp | MouseEventFlags.Absolute), loginx, loginy, 0, IntPtr.Zero);
             //点击两次
             mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, loginx, loginy, , );

             mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, loginx, loginy, , );

         }
     }
 }