C# 创建不规则窗体

using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;namespace Win{/// <summary>/// Form1 的摘要说明。/// </summary>public class Form1 : System.Windows.Forms.Form{private System.Windows.Forms.Button button1;/// <summary>/// 必需的设计器变量。/// </summary>private System.ComponentModel.Container components = null;public Form1(){//// Windows 窗体设计器支持所必需的//InitializeComponent();//// TODO: 在 InitializeComponent 调用后添加任何构造函数代码//}/// <summary>/// 清理所有正在使用的资源。/// </summary>protected override void Dispose( bool disposing ){if( disposing ){if (components != null) {components.Dispose();}}base.Dispose( disposing );}#region Windows 窗体设计器生成的代码/// <summary>/// 设计器支持所需的方法 - 不要使用代码编辑器修改/// 此方法的内容。/// </summary>private void InitializeComponent(){ System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1)); this.button1 = new System.Windows.Forms.Button(); this.SuspendLayout(); // // button1 // this.button1.Location = new System.Drawing.Point(74, 212); this.button1.Name = "button1"; this.button1.Size = new System.Drawing.Size(120, 26); this.button1.TabIndex = 0; this.button1.Text = "关闭程序"; this.button1.Click = new System.EventHandler(this.button1_Click); // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); this.BackColor = System.Drawing.Color.Silver; this.BackgroundImage = ((System.Drawing.Image)(resources.GetObject("$this.BackgroundImage"))); this.ClientSize = new System.Drawing.Size(354, 258); this.Controls.Add(this.button1); this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None; this.Name = "Form1"; this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen; this.Text = "演示创建不规则窗体"; this.TransparencyKey = System.Drawing.Color.Silver; this.MouseUp = new System.Windows.Forms.MouseEventHandler(this.Form1_MouseUp); this.MouseMove = new System.Windows.Forms.MouseEventHandler(this.Form1_MouseMove); this.MouseDown = new System.Windows.Forms.MouseEventHandler(this.Form1_MouseDown); this.ResumeLayout(false);}#endregion/// <summary>/// 应用程序的主入口点。/// </summary>[STAThread]static void Main() {Application.Run(new Form1());}private void button1_Click(object sender, System.EventArgs e){//关闭应用程序this.Close();}private Point MousePos; //记录鼠标指针的坐标private bool bMouseDown = false; //记录鼠标按键是否按下private void Form1_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e){//响应鼠标按下if (e.Button == MouseButtons.Left) {MousePos.X = -e.X - SystemInformation.FrameBorderSize.Width;MousePos.Y = -e.Y - SystemInformation.CaptionHeight -SystemInformation.FrameBorderSize.Height;bMouseDown = true;}}private void Form1_MouseMove(object sender, System.Windows.Forms.MouseEventArgs e){//响应鼠标移动if (bMouseDown) {Point CurrentPos = Control.MousePosition;CurrentPos.Offset( MousePos.X, MousePos.Y);Location = CurrentPos;}}private void Form1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e){//响应鼠标弹起if (e.Button == MouseButtons.Left) {bMouseDown = false;}} }}