using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Collections; using System.ComponentModel; using System.Windows.Forms; using System.Data; public class Form1 : System.Windows.Forms.Form { private Image bMapImageA = new Bitmap("winter.jpg"); private Image bMapImageB = new Bitmap("winter.jpg"); private Image bMapImageC = new Bitmap("winter.jpg"); private Rectangle rectA = new Rectangle(10, 10, 90, 90); private Rectangle rectB = new Rectangle(10, 110, 90, 90); private Rectangle rectC = new Rectangle(10, 210, 90, 90); private bool isImageClicked = false; private int imageClicked; public Form1() { InitializeComponent(); CenterToScreen(); } private void InitializeComponent() { this.AutoScaleBaseSize = new System.Drawing.Size(5, 13); this.ClientSize = new System.Drawing.Size(292, 273); this.Text = "Form1"; this.MouseUp += new System.Windows.Forms.MouseEventHandler(this.Form1_MouseUp); this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint); } static void Main() { Application.Run(new Form1()); } private void Form1_MouseUp(object sender, System.Windows.Forms.MouseEventArgs e) { Point mousePt = new Point(e.X, e.Y); if(rectA.Contains(mousePt)) { isImageClicked = true; imageClicked = 0; this.Text = "You clicked image A"; } else if(rectB.Contains(mousePt)) { isImageClicked = true; imageClicked = 1; this.Text = "You clicked image B"; } else if(rectC.Contains(mousePt)) { isImageClicked = true; imageClicked = 2; this.Text = "You clicked image C"; } else { isImageClicked = false; this.Text = "Images"; } Invalidate(); } private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e) { Graphics g = e.Graphics; g.DrawImage(bMapImageA, rectA); g.DrawImage(bMapImageB, rectB); g.DrawImage(bMapImageC, rectC); if(isImageClicked == true) { Pen outline = new Pen(Color.Black, 2); switch(imageClicked) { case 0: g.DrawRectangle(outline, rectA); break; case 1: g.DrawRectangle(outline, rectB); break; case 2: g.DrawRectangle(outline, rectC); break; default: break; } } } }