Scroll Shapes : Form Event « GUI Windows Form « C# / C Sharp

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C# / C Sharp » GUI Windows Form » Form EventScreenshots 
Scroll Shapes
 
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;


using System.Text;
using System.Windows.Forms;

public class Form1 : Form {
    private Point rectangleTopLeft = new Point(00);
    private Size rectangleSize = new Size(200200);
    private Point ellipseTopLeft = new Point(50200);
    private Size ellipseSize = new Size(200150);
    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);
        }

    }

    public Form1() {
        this.BackColor = Color.White;

        this.Size = new System.Drawing.Size(300300);
        this.AutoScrollMinSize = new Size(250350);
    }
    public static void Main() {
        Application.Run(new Form1());

    }
}

 
Related examples in the same category
1.Form Window event: closing, closed, load, activated, deactivated
2.Scrolling (AutoScrollMinSize)
3.OnInputLanguageChangedOnInputLanguageChanged
4.Form Focus eventForm Focus event
5.On Mouse Wheel
6.OnMouseEnter, OnMouseHover, OnMouseLeave event
7.OnKeyDown event
8.OnClick event
9.Form OnResize
10.Form OnMove event
11.Cancel EventCancel Event
12.Uncloseable eventUncloseable event
13.Bind key action to a form windowBind key action to a form window
14.Form window closing eventForm window closing event
15.Form window load eventForm window load event
16.Form resize and redrawForm resize and redraw
17.Form Mouse down actionForm Mouse down action
18.Form Key Press actionForm Key Press action
19.Form Paint event
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