C#鼠标控制

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已于 2023-02-16 22:23:27 修改

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分类专栏： C# 文章标签： c# wpf

于 2023-02-16 22:17:24 首次发布

本文链接：https://blog.youkuaiyun.com/qq_22868237/article/details/129073141

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该代码示例展示了如何在C#中使用WinAPI函数mouse_event、SetCursorPos和GetCursorPos来模拟鼠标移动、左键点击、左键双击以及滚轮滚动操作。通过这些函数，可以实现对鼠标的程序化控制。

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using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace WQ
{
    /// <summary>
    /// 鼠标
    /// </summary>
    public class Mouse
    {
        // https://blog.youkuaiyun.com/fuhanghang/article/details/118700282
        // https://learn.microsoft.com/en-us/windows/win32/api/winuser/nf-winuser-mouse_event

        private const int MOUSEEVENTF_MOVE       = 0x0001;      // 移动鼠标
        private const int MOUSEEVENTF_LEFTDOWN   = 0x0002;      // 鼠标左键按下
        private const int MOUSEEVENTF_LEFTUP     = 0x0004;      // 鼠标左键抬起
        private const int MOUSEEVENTF_RIGHTDOWN  = 0x0008;      // 鼠标右键按下
        private const int MOUSEEVENTF_RIGHTUP    = 0x0010;      // 鼠标右键抬起
        private const int MOUSEEVENTF_MIDDLEDOWN = 0x0020;      // 鼠标中键按下
        private const int MOUSEEVENTF_MIDDLEUP   = 0x0040;      // 鼠标中键抬起
        private const int MOUSEEVENTF_WHEEL      = 0x0800;      // 滑动鼠标滚轮
        private const int MOUSEEVENTF_ABSOLUTE   = 0x8000;      // 绝对坐标

        [DllImport("user32.dll")]
        private extern static void mouse_event(int dwFlags, int dx, int dy, int dwData, int dwExtraInfo);



        //  https://learn.microsoft.com/zh-cn/windows/win32/api/winuser/nf-winuser-setcursorpos?redirectedfrom=MSDN

        /// <summary>
        /// 将光标移动到指定的屏幕坐标。
        /// </summary>
        /// <param name="X">屏幕坐标</param>
        /// <param name="Y">屏幕坐标</param>
        /// <returns>如果成功，则返回非零；否则返回零。</returns>
        [DllImport("user32.dll")]
        public extern static int SetCursorPos(int X, int Y);



        //  https://learn.microsoft.com/zh-cn/windows/win32/api/winuser/nf-winuser-getcursorpos?redirectedfrom=MSDN

        /// <summary>
        /// 定义一个屏幕坐标。
        /// </summary>
        public struct POINT
        {
            public int X;
            public int Y;
        }

        /// <summary>
        /// 获取光标的屏幕坐标。
        /// </summary>
        /// <param name="lpPoint">屏幕坐标</param>
        /// <returns>如果成功，则返回非零；否则返回零。</returns>
        [DllImport("user32.dll")]
        public extern static int GetCursorPos(ref POINT lpPoint);





        /// <summary>
        /// 鼠标左键单击
        /// </summary>
        /// <param name="x">屏幕坐标</param>
        /// <param name="y">屏幕坐标</param>
        public static void Button_Left_Click(int x, int y)
        {
            SetCursorPos(x, y);
            mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, 0, 0, 0, 0);
        }

        /// <summary>
        /// 鼠标左键双击
        /// </summary>
        /// <param name="x">屏幕坐标</param>
        /// <param name="y">屏幕坐标</param>
        public static void Button_Left_DoubleClick(int x, int y)
        {
            SetCursorPos(x, y);
            mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, 0, 0, 0, 0);
            mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, 0, 0, 0, 0);
        }

        /// <summary>
        /// 滑动滚轮
        /// </summary>
        /// <param name="x">屏幕坐标</param>
        /// <param name="y">屏幕坐标</param>
        /// <param name="number">滚轮移动量。正值表示滚轮向前旋转，远离用户；负值表示轮子向后旋转，朝向用户。一次滚轮点击被定义为WHEEL_DELTA，值为120。</param>
        public static void Wheel(int x, int y, int number)
        {
            SetCursorPos(x, y);
            mouse_event(MOUSEEVENTF_WHEEL, 0, 0, number, 0);
        }

    }

}