GDI+中区域的定义和绘制
using System;using System.Drawing;using System.Collections;using System.ComponentModel;using System.Windows.Forms;using System.Data;using System.Drawing.Drawing2D;namespace 区域
...{
/**//// <summary>
/// Form1 的摘要说明。
/// </summary> public class Form1 : System.Windows.Forms.Form ...{ /**//// <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 ); } Windows Form Designer generated code#region Windows Form Designer generated code /**//// <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() ...{ // // Form1 // this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); this.ClientSize = new System.Drawing.Size(632, 526); this.Name = "Form1"; this.Text = "区域"; this.Load += new System.EventHandler(this.Form1_Load); } #endregion /**//// <summary> /// 应用程序的主入口点。 /// </summary> [STAThread] static void Main() ...{ Application.Run(new Form1()); } protected override void OnPaint(PaintEventArgs e) ...{ Graphics g= e.Graphics; g.FillRectangle(Brushes.White, this.ClientRectangle); Region r1=new Region(new RectangleF(60, 50, 150, 100)); GraphicsPath gp=new GraphicsPath(); gp.AddLine(300, 50, 500, 100); gp.AddLine(500, 100, 400, 200); gp.CloseFigure(); gp.StartFigure(); gp.AddEllipse(50, 200, 200, 100); Region r2=new Region(gp); g.FillRegion(Brushes.CornflowerBlue, r1); g.FillRegion(Brushes.DarkOrange, r2); r1.Dispose(); r2.Dispose(); gp.Dispose(); } private void Form1_Load(object sender, System.EventArgs e) ...{ } }
}