C#WinForm 鼠标左键拖动窗体

C# WinForm 鼠标左键拖动窗体

C# WinForm 鼠标左键拖动窗体

仔细看 亲测实现 ：

public partial class Form1 : Form{Point mouseOff;bool leftFlag=false;public Form1(){InitializeComponent();}private void Form1_Load(object sender, EventArgs e){}//第一步private void Form1_MouseDown(object sender, MouseEventArgs e){if (e.Button==MouseButtons.Left){mouseOff = new Point(-e.X,-e.Y);leftFlag = true;}}//第二步private void Form1_MouseMove(object sender, MouseEventArgs e){if (leftFlag){Point mouseSet = Control.MousePosition;mouseSet.Offset(mouseOff.X,mouseOff.Y);this.Location = mouseSet;}}//第三步private void Form1_MouseUp(object sender, MouseEventArgs e){if (leftFlag){leftFlag = false;}}}