OvalShape Class

Represents a control displayed as a circle or oval.

Namespace:  Microsoft.VisualBasic.PowerPacks
Assembly:  Microsoft.VisualBasic.PowerPacks.Vs (in Microsoft.VisualBasic.PowerPacks.Vs.dll)

Syntax

'إقرار
<ToolboxBitmapAttribute(GetType(OvalShape), "Microsoft.VisualBasic.PowerPacks.OvalShape.bmp")> _
Public Class OvalShape _
    Inherits SimpleShape
'الاستخدام
Dim instance As OvalShape

[ToolboxBitmapAttribute(typeof(OvalShape), "Microsoft.VisualBasic.PowerPacks.OvalShape.bmp")]
public class OvalShape : SimpleShape

[ToolboxBitmapAttribute(typeof(OvalShape), L"Microsoft.VisualBasic.PowerPacks.OvalShape.bmp")]
public ref class OvalShape : public SimpleShape

[<ToolboxBitmapAttribute(typeof(OvalShape), "Microsoft.VisualBasic.PowerPacks.OvalShape.bmp")>]
type OvalShape =  
    class
        inherit SimpleShape
    end

public class OvalShape extends SimpleShape

Remarks

The OvalShape control enables you to draw circles and ovals on a form or container at design time or run time.

When you add a Line or Shape control to a form or container, an invisible ShapeContainer object is created. The ShapeContainer acts as a drawing surface for the shapes within each container control. Each ShapeContainer has a corresponding ShapeCollection that enables you to iterate through the Line and Shape controls that are contained in the ShapeContainer.

When you create an OvalShape control at run time, you must also create a ShapeContainer and set the Parent property of the OvalShape to the ShapeContainer.

Examples

The following example creates a ShapeContainer and an OvalShape, adds them to a form, and displays a circle.

Private Sub DrawCircle()
    Dim canvas As New Microsoft.VisualBasic.PowerPacks.ShapeContainer
    Dim oval1 As New Microsoft.VisualBasic.PowerPacks.OvalShape
    ' Set the form as the parent of the ShapeContainer.
    canvas.Parent = Me
    ' Set the ShapeContainer as the parent of the OvalShape.
    oval1.Parent = canvas
    ' Set the location and size of the circle.
    oval1.Left = 10
    oval1.Top = 10
    oval1.Width = 100
    oval1.Height = 100
End Sub

private void DrawCircle1()
{
    Microsoft.VisualBasic.PowerPacks.ShapeContainer canvas = 
        new Microsoft.VisualBasic.PowerPacks.ShapeContainer();
    Microsoft.VisualBasic.PowerPacks.OvalShape oval1 = 
        new Microsoft.VisualBasic.PowerPacks.OvalShape();
    // Set the form as the parent of the ShapeContainer.
    canvas.Parent = this;
    // Set the ShapeContainer as the parent of the OvalShape.
    oval1.Parent = canvas;
    // Set the location and size of the circle.
    oval1.Left = 10;
    oval1.Top = 10;
    oval1.Width = 100;
    oval1.Height = 100;
}

Inheritance Hierarchy

System.Object
  System.MarshalByRefObject
    System.ComponentModel.Component
      Microsoft.VisualBasic.PowerPacks.Shape
        Microsoft.VisualBasic.PowerPacks.SimpleShape
          Microsoft.VisualBasic.PowerPacks.OvalShape

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

OvalShape Members

Microsoft.VisualBasic.PowerPacks Namespace

Other Resources

Introduction to the Line and Shape Controls (Visual Studio)

How to: Draw Lines with the LineShape Control (Visual Studio)

How to: Draw Shapes with the OvalShape and RectangleShape Controls (Visual Studio)