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How to: Draw an Outlined Shape

.NET Framework 3.5

Other Versions

This example draws outlined ellipses and rectangles on a form.

Example

C++

private void DrawEllipse()
{
    System.Drawing.Pen myPen = new System.Drawing.Pen(System.Drawing.Color.Red);
    System.Drawing.Graphics formGraphics;
    formGraphics = this.CreateGraphics();
    formGraphics.DrawEllipse(myPen, new Rectangle(0, 0, 200, 300));
    myPen.Dispose();
    formGraphics.Dispose();
}

private void DrawRectangle()
{
    System.Drawing.Pen myPen = new System.Drawing.Pen(System.Drawing.Color.Red);
    System.Drawing.Graphics formGraphics;
    formGraphics = this.CreateGraphics();
    formGraphics.DrawRectangle(myPen, new Rectangle(0, 0, 200, 300));
    myPen.Dispose();
    formGraphics.Dispose();
}

Compiling the Code

You cannot call this method in the Load event handler. The drawn content will not be redrawn if the form is resized or obscured by another form. To make your content automatically repaint, you should override the OnPaint method.

Robust Programming

You should always call Dispose on any objects that consume system resources, such as Pen and Graphics objects.

Reference

DrawEllipse

OnPaint

DrawRectangle

Other Resources

Getting Started with Graphics Programming

Using a Pen to Draw Lines and Shapes

Graphics and Drawing in Windows Forms

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How to: Draw an Outlined Shape

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