【C#】[窗体]不规则窗体

效果图：         （源码下载：http://download.csdn.net/source/3001695）

 

 

 

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Drawing;using System.Linq;using System.Text;using System.Windows.Forms;using System.Runtime.InteropServices;//namespace 不规则窗体{ public partial class Form1 : Form { public Form1() { InitializeComponent(); } //--------------------- [DllImport("gdi32")] private static extern IntPtr CreatePolygonRgn(Point[] lpPoint, int nCount, int nPolyFillMode); [DllImport("user32")] private static extern IntPtr SetWindowRgn(IntPtr hWnd, IntPtr hRgn, bool bRedraw); const int WINDING = 2; private void Form1_Load(object sender, EventArgs e) { Point[] pt ={ new Point(0,0), new Point(0,this.Height/2), new Point(this.Width/2,this.Height), new Point(this.Width,this.Height/2), new Point(this.Width,0) }; IntPtr m_rgn; m_rgn = CreatePolygonRgn(pt, 5, WINDING); SetWindowRgn(this.Handle, m_rgn, true); } }}