?? form1.cs
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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace SimpleGraphics
{
/// <summary>
/// Summary description for Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public Form1()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
this.components = new System.ComponentModel.Container();
this.Size = new System.Drawing.Size(300,300);
this.Text = "Display At Startup";
this.BackColor = Color.White;
this.AutoScrollMinSize = new Size(250, 350);
//
// 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 );
}
private Point rectangleTopLeft = new Point(0, 0);
private Size rectangleSize = new Size(200,200);
private Point ellipseTopLeft = new Point(50, 200);
private Size ellipseSize = new Size(200, 150);
private Pen bluePen = new Pen(Color.Blue, 3);
private Pen redPen = new Pen(Color.Red, 2);
protected override void OnPaint( PaintEventArgs e )
{
base.OnPaint(e);
Graphics dc = e.Graphics;
Size scrollOffset = new Size(this.AutoScrollPosition);
if (e.ClipRectangle.Top+scrollOffset.Width < 350 ||
e.ClipRectangle.Left+scrollOffset.Height < 250)
{
Rectangle rectangleArea = new Rectangle
(rectangleTopLeft+scrollOffset, rectangleSize);
Rectangle ellipseArea = new Rectangle
(ellipseTopLeft+scrollOffset, ellipseSize);
dc.DrawRectangle(bluePen, rectangleArea);
dc.DrawEllipse(redPen, ellipseArea);
}
}
#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()
{
this.components = new System.ComponentModel.Container();
this.Size = new System.Drawing.Size(300,300);
this.Text = "Form1";
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
}
}
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