using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;

namespace 如何获取鼠标相对当前窗口的坐标
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
           // 可以用Control.MousePosition获得当前鼠标的坐标，使用PointToClient计算鼠标相对于某个控件的坐标，如下

            Point screenPoint = Control.MousePosition;//鼠标相对于屏幕左上角的坐标
         
            Point formPoint = this.PointToClient(Control.MousePosition);//鼠标相对于窗体左上角的坐标 

            Point button1Point = button1.PointToClient(Control.MousePosition);//鼠标相对于contextMenuStrip1左上角的坐标

            label4.Text = screenPoint.ToString();
            label5.Text=formPoint.ToString();
            label6.Text=button1Point.ToString();
        }

        private void button1_Click(object sender, EventArgs e)
        {

        }
    }
}