VisualStyleElement.TrackBar.ThumbVertical 类

定义

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

public static class VisualStyleElement.TrackBar.ThumbVertical

type VisualStyleElement.TrackBar.ThumbVertical = class

Public Class VisualStyleElement.TrackBar.ThumbVertical

继承

Object

VisualStyleElement.TrackBar.ThumbVertical

示例

下面的代码示例演示如何使用属性返回Normal的值创建 a。VisualStyleRendererVisualStyleElement 若要运行此示例，请将其粘贴到 Windows 窗体中。 处理表单 Paint 的事件，并从事件处理方法调用 DrawVisualStyleElementTrackBarThumbVertical1 该方法 Paint ，并传递 e 为 PaintEventArgs。

public void DrawVisualStyleElementTrackBarThumbVertical1(PaintEventArgs e)
{
    if (VisualStyleRenderer.IsElementDefined(
        VisualStyleElement.TrackBar.ThumbVertical.Normal))
    {
        VisualStyleRenderer renderer =
             new VisualStyleRenderer(VisualStyleElement.TrackBar.ThumbVertical.Normal);
        Rectangle rectangle1 = new Rectangle(10, 50, 50, 50);
        renderer.DrawBackground(e.Graphics, rectangle1);
        e.Graphics.DrawString("VisualStyleElement.TrackBar.ThumbVertical.Normal",
             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 DrawVisualStyleElementTrackBarThumbVertical1(ByVal e As PaintEventArgs)
    If (VisualStyleRenderer.IsElementDefined( _
     VisualStyleElement.TrackBar.ThumbVertical.Normal)) Then
        Dim renderer As New VisualStyleRenderer _
          (VisualStyleElement.TrackBar.ThumbVertical.Normal)
        Dim rectangle1 As New Rectangle(10, 50, 50, 50)
        renderer.DrawBackground(e.Graphics, rectangle1)
        e.Graphics.DrawString("VisualStyleElement.TrackBar.ThumbVertical.Normal", _
          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

注解

该类的每个属性 VisualStyleElement.TrackBar.ThumbVertical 返回 VisualStyleElement 垂直跟踪条滑块的不同状态。

另请参阅

• VisualStyleElement
• VisualStyleRenderer