VisualStyleElement.Window.MdiHelpButton Class

Reference

Definition

Namespace:: System.Windows.Forms.VisualStyles

Assembly:: System.Windows.Forms.dll

Source:: VisualStyleElement.cs

Source:: VisualStyleElement.cs

Source:: VisualStyleElement.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Provides VisualStyleElement objects for each state of the Help button of a multiple-document interface (MDI) child window. This class cannot be inherited.

public: ref class VisualStyleElement::Window::MdiHelpButton abstract sealed

public static class VisualStyleElement.Window.MdiHelpButton

type VisualStyleElement.Window.MdiHelpButton = class

Public Class VisualStyleElement.Window.MdiHelpButton

Inheritance: Object
VisualStyleElement.Window.MdiHelpButton

Examples

The following code example demonstrates how to create a VisualStyleRenderer with the VisualStyleElement returned by the Normal property. To run this example, paste it into a Windows Form. Handle the form's Paint event and call the DrawVisualStyleElementWindowMdiHelpButton1 method from the Paint event-handling method, passing e as PaintEventArgs.

public void DrawVisualStyleElementWindowMdiHelpButton1(PaintEventArgs e)
{
    if (VisualStyleRenderer.IsElementDefined(
        VisualStyleElement.Window.MdiHelpButton.Normal))
    {
        VisualStyleRenderer renderer =
             new VisualStyleRenderer(VisualStyleElement.Window.MdiHelpButton.Normal);
        Rectangle rectangle1 = new Rectangle(10, 50, 50, 50);
        renderer.DrawBackground(e.Graphics, rectangle1);
        e.Graphics.DrawString("VisualStyleElement.Window.MdiHelpButton.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 DrawVisualStyleElementWindowMdiHelpButton1(ByVal e As PaintEventArgs)
    If (VisualStyleRenderer.IsElementDefined( _
     VisualStyleElement.Window.MdiHelpButton.Normal)) Then
        Dim renderer As New VisualStyleRenderer _
          (VisualStyleElement.Window.MdiHelpButton.Normal)
        Dim rectangle1 As New Rectangle(10, 50, 50, 50)
        renderer.DrawBackground(e.Graphics, rectangle1)
        e.Graphics.DrawString("VisualStyleElement.Window.MdiHelpButton.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

Remarks

Each property of the VisualStyleElement.Window.MdiHelpButton class returns a VisualStyleElement for a different state of the Help button of an MDI child window.

Properties

Disabled	Gets a visual style element that represents the Help button of a multiple-document interface (MDI) child window in the disabled state.
Hot	Gets a visual style element that represents the Help button of a multiple-document interface (MDI) child window in the hot state.
Normal	Gets a visual style element that represents the Help button of a multiple-document interface (MDI) child window in the normal state.
Pressed	Gets a visual style element that represents the Help button of a multiple-document interface (MDI) child window in the pressed state.

Applies to

Производ	Верзије
.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

Делите путем