VisualStyleElement.TrackBar.Thumb Class

Reference

Definition

Namespace:: System.Windows.Forms.VisualStyles

Assembly:: System.Windows.Forms.dll

Source:: VisualStyleElement.cs

Source:: VisualStyleElement.cs

Source:: VisualStyleElement.cs

Important

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

public: ref class VisualStyleElement::TrackBar::Thumb abstract sealed

public static class VisualStyleElement.TrackBar.Thumb

type VisualStyleElement.TrackBar.Thumb = class

Public Class VisualStyleElement.TrackBar.Thumb

Inheritance: Object
VisualStyleElement.TrackBar.Thumb

Examples

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 void DrawVisualStyleElementTrackBarThumb5(PaintEventArgs e)
{
    if (VisualStyleRenderer.IsElementDefined(
        VisualStyleElement.TrackBar.Thumb.Disabled))
    {
        VisualStyleRenderer renderer =
             new VisualStyleRenderer(VisualStyleElement.TrackBar.Thumb.Disabled);
        Rectangle rectangle1 = new Rectangle(10, 50, 50, 50);
        renderer.DrawBackground(e.Graphics, rectangle1);
        e.Graphics.DrawString("VisualStyleElement.TrackBar.Thumb.Disabled",
             this.Font, Brushes.Black, new Point(10, 10));
    }
    else
        e.Graphics.DrawString("This element is not defined in the current visual style.",
             this.Font, Brushes.Black, new Point(10, 10));
}

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

Remarks

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

Properties

Disabled	Gets a visual style element that represents the slider of a horizontal track bar in the disabled state.
Focused	Gets a visual style element that represents the slider of a horizontal track bar that has focus.
Hot	Gets a visual style element that represents the slider of a horizontal track bar in the hot state.
Normal	Gets a visual style element that represents the slider of a horizontal track bar in the normal state.
Pressed	Gets a visual style element that represents the slider of a horizontal track bar in the pressed state.

Applies to

Product	Versions
.NET Framework	2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
Windows Desktop	3.0, 3.1, 5, 6, 7, 8, 9, 10

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