/* User Interfaces in C#: Windows Forms and Custom Controls by Matthew MacDonald Publisher: Apress ISBN: 1590590457 */ using System; using System.Drawing; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Drawing.Drawing2D; namespace GDI_Basics { /// <summary> /// Summary description for GraphicsPathExample. /// </summary> public class GraphicsPathExample : System.Windows.Forms.Form { /// <summary> /// Required designer variable. /// </summary> private System.ComponentModel.Container components = null; public GraphicsPathExample() { // // Required for Windows Form Designer support // InitializeComponent(); // // TODO: Add any constructor code after InitializeComponent call // } /// <summary> /// Clean up any resources being used. /// </summary> protected override void Dispose( bool disposing ) { if( disposing ) { if(components != null) { components.Dispose(); } } base.Dispose( disposing ); } #region Windows Form Designer generated code /// <summary> /// Required method for Designer support - do not modify /// the contents of this method with the code editor. /// </summary> private void InitializeComponent() { // // GraphicsPathExample // this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(292, 266); this.Name = "GraphicsPathExample"; this.Text = "GraphicsPathExample"; this.MouseDown += new System.Windows.Forms.MouseEventHandler(this.GraphicsPathExample_MouseDown); this.Paint += new System.Windows.Forms.PaintEventHandler(this.GraphicsPathExample_Paint); } #endregion [STAThread] static void Main() { Application.Run(new GraphicsPathExample()); } GraphicsPath path; private void GraphicsPathExample_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { e.Graphics.SmoothingMode = SmoothingMode.AntiAlias; path = new GraphicsPath(); path.StartFigure(); path.AddArc(10, 10, 100, 100, 20, 50); path.AddLine(20, 50, 70, 230); path.CloseFigure(); path.AddEllipse(120, 50, 80, 80); e.Graphics.FillPath(Brushes.White, path); e.Graphics.DrawPath(Pens.Black, path); } private void GraphicsPathExample_MouseDown(object sender, System.Windows.Forms.MouseEventArgs e) { if (path.IsVisible(e.X, e.Y)) { MessageBox.Show("You clicked inside the figure."); } } } }