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VisualStyleElement.TrackBar.Thumb Class

Provides VisualStyleElement objects for each state of the slider (also known as the thumb) of a horizontal track bar. This class cannot be inherited.

Namespace:  System.Windows.Forms.VisualStyles
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

'Declaration
Public NotInheritable Class Thumb
'Usage
You do not need to declare an instance of a static class in order to access its members.

Each property of the VisualStyleElement.TrackBar.Thumb class returns a VisualStyleElement for a different state of the slider of a horizontal track bar.

Windows XP Home Edition, Windows XP Professional x64 Edition, Windows Server 2003 Platform Note: Visual styles are supported only on these platforms.

The following code example demonstrates how to create a VisualStyleRenderer with the VisualStyleElement returned by the Disabled property. To run this example, paste it into a Windows Form. Handle the form’s Paint event and call the DrawVisualStyleElementTrackBarThumb5 method from the Paint event-handling method, passing e as PaintEventArgs.

Public Sub DrawVisualStyleElementTrackBarThumb5(ByVal e As PaintEventArgs)
    If (VisualStyleRenderer.IsElementDefined( _
     VisualStyleElement.TrackBar.Thumb.Disabled)) Then 
        Dim renderer As New VisualStyleRenderer _
          (VisualStyleElement.TrackBar.Thumb.Disabled)
        Dim rectangle1 As New Rectangle(10, 50, 50, 50)
        renderer.DrawBackground(e.Graphics, rectangle1)
        e.Graphics.DrawString("VisualStyleElement.TrackBar.Thumb.Disabled", _
          Me.Font, Brushes.Black, New Point(10, 10))
    Else
        e.Graphics.DrawString("This element is not defined in the current visual style.", _
          Me.Font, Brushes.Black, New Point(10, 10))
    End If 
End Sub

System.Object
  System.Windows.Forms.VisualStyles.VisualStyleElement.TrackBar.Thumb

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

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0
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