How to: Draw a Filled Ellipse on a Windows Form

This example draws a filled ellipse on a form.


System::Drawing::SolidBrush^ myBrush =
    gcnew System::Drawing::SolidBrush(System::Drawing::Color::Red);
System::Drawing::Graphics^ formGraphics;
formGraphics = this->CreateGraphics();
formGraphics->FillEllipse(myBrush, Rectangle(0, 0, 200, 300));
delete myBrush;
delete formGraphics;
System.Drawing.SolidBrush myBrush = new System.Drawing.SolidBrush(System.Drawing.Color.Red);
System.Drawing.Graphics formGraphics;
formGraphics = this.CreateGraphics();
formGraphics.FillEllipse(myBrush, new Rectangle(0, 0, 200, 300));
Dim myBrush As New System.Drawing.SolidBrush(System.Drawing.Color.Red)
Dim formGraphics As System.Drawing.Graphics
formGraphics = Me.CreateGraphics()
formGraphics.FillEllipse(myBrush, New Rectangle(0, 0, 200, 300))

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 Brush and Graphics objects.

See Also

Graphics and Drawing in Windows Forms
Getting Started with Graphics Programming
Alpha Blending Lines and Fills
Using a Brush to Fill Shapes