TabRenderer.DrawTabPage(Graphics, Rectangle) 方法

定义

命名空间:

System.Windows.Forms

程序集:

System.Windows.Forms.dll

绘制具有指定边界的选项卡页。

public:
 static void DrawTabPage(System::Drawing::Graphics ^ g, System::Drawing::Rectangle bounds);

public static void DrawTabPage (System.Drawing.Graphics g, System.Drawing.Rectangle bounds);

static member DrawTabPage : System.Drawing.Graphics * System.Drawing.Rectangle -> unit

Public Shared Sub DrawTabPage (g As Graphics, bounds As Rectangle)

参数

g

Graphics

用于绘制选项卡页的 Graphics。

bounds

Rectangle

用于指定选项卡页边界的 Rectangle。

例外

InvalidOperationException

操作系统不支持视觉样式。

- 或 -

用户在操作系统中禁用视觉样式。

- 或 -

视觉样式不应用于应用程序窗口的工作区。

示例

下面的代码示例使用 DrawTabPage 自定义控件的 OnPaint 方法绘制选项卡页。 此代码示例是为 TabRenderer 类提供的一个更大示例的一部分。

    // Draw the tab page and the tab items.
protected:
    virtual void OnPaint(PaintEventArgs^ e) override
    {
        __super::OnPaint(e);

        if (!TabRenderer::IsSupported)
        {
            this->Parent->Text = "CustomTabControl Disabled";
            return;
        }

        TabRenderer::DrawTabPage(e->Graphics, tabPageRectangle);
        TabRenderer::DrawTabItem(e->Graphics, tabItemRectangle1,
            tab1Text, this->Font, tab1Focused, tab1State);
        TabRenderer::DrawTabItem(e->Graphics, tabItemRectangle2,
            tab2Text, this->Font, tab2Focused, tab2State);

        this->Parent->Text = "CustomTabControl Enabled";
    }

// Draw the tab page and the tab items.
protected override void OnPaint(PaintEventArgs e)
{
    base.OnPaint(e);

    if (!TabRenderer.IsSupported)
    {
        this.Parent.Text = "CustomTabControl Disabled";
        return;
    }

    TabRenderer.DrawTabPage(e.Graphics, tabPageRectangle);
    TabRenderer.DrawTabItem(e.Graphics, tabItemRectangle1,
        tab1Text, this.Font, tab1Focused, tab1State);
    TabRenderer.DrawTabItem(e.Graphics, tabItemRectangle2,
        tab2Text, this.Font, tab2Focused, tab2State);

    this.Parent.Text = "CustomTabControl Enabled";
}

' Draw the tab page and the tab items.
Protected Overrides Sub OnPaint(ByVal e As PaintEventArgs)
    MyBase.OnPaint(e)

    If Not TabRenderer.IsSupported Then
        Me.Parent.Text = "CustomTabControl Disabled"
        Return
    End If

    TabRenderer.DrawTabPage(e.Graphics, tabPageRectangle)
    TabRenderer.DrawTabItem(e.Graphics, tabItemRectangle1, _
        tab1Text, Me.Font, tab1Focused, tab1State)
    TabRenderer.DrawTabItem(e.Graphics, tabItemRectangle2, _
        tab2Text, Me.Font, tab2Focused, tab2State)
    Me.Parent.Text = "CustomTabControl Enabled"
End Sub

注解

在调用此方法之前，应验证 属性是否 IsSupported 返回 true。