VisualStyleElement.TrackBar.ThumbTop 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 upward-pointing track bar slider (also known as the thumb). This class cannot be inherited.

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

public static class VisualStyleElement.TrackBar.ThumbTop

type VisualStyleElement.TrackBar.ThumbTop = class

Public Class VisualStyleElement.TrackBar.ThumbTop

Inheritance: Object
VisualStyleElement.TrackBar.ThumbTop

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 DrawVisualStyleElementTrackBarThumbTop5 method from the Paint event-handling method, passing e as PaintEventArgs.

public void DrawVisualStyleElementTrackBarThumbTop5(PaintEventArgs e)
{
    if (VisualStyleRenderer.IsElementDefined(
        VisualStyleElement.TrackBar.ThumbTop.Disabled))
    {
        VisualStyleRenderer renderer =
             new VisualStyleRenderer(VisualStyleElement.TrackBar.ThumbTop.Disabled);
        Rectangle rectangle1 = new Rectangle(10, 50, 50, 50);
        renderer.DrawBackground(e.Graphics, rectangle1);
        e.Graphics.DrawString("VisualStyleElement.TrackBar.ThumbTop.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 DrawVisualStyleElementTrackBarThumbTop5(ByVal e As PaintEventArgs)
    If (VisualStyleRenderer.IsElementDefined( _
     VisualStyleElement.TrackBar.ThumbTop.Disabled)) Then
        Dim renderer As New VisualStyleRenderer _
          (VisualStyleElement.TrackBar.ThumbTop.Disabled)
        Dim rectangle1 As New Rectangle(10, 50, 50, 50)
        renderer.DrawBackground(e.Graphics, rectangle1)
        e.Graphics.DrawString("VisualStyleElement.TrackBar.ThumbTop.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.ThumbTop class returns a VisualStyleElement for a different state of the upward-pointing track bar slider.

Properties

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

Applies to

Продукт	Версії
.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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