VisualStyleRenderer.GetPartSize 方法

参考

定义

命名空间:: System.Windows.Forms.VisualStyles

程序集:: System.Windows.Forms.dll

重要

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返回当前视觉样式部件的指定大小属性的值。

重载

GetPartSize(IDeviceContext, ThemeSizeType)	返回当前视觉样式部件的指定大小属性的值。
GetPartSize(IDeviceContext, Rectangle, ThemeSizeType)	使用指定的绘制边界返回当前视觉样式部件的指定大小属性的值。

GetPartSize(IDeviceContext, ThemeSizeType)

返回当前视觉样式部件的指定大小属性的值。

public:
 System::Drawing::Size GetPartSize(System::Drawing::IDeviceContext ^ dc, System::Windows::Forms::VisualStyles::ThemeSizeType type);

public System.Drawing.Size GetPartSize (System.Drawing.IDeviceContext dc, System.Windows.Forms.VisualStyles.ThemeSizeType type);

member this.GetPartSize : System.Drawing.IDeviceContext * System.Windows.Forms.VisualStyles.ThemeSizeType -> System.Drawing.Size

Public Function GetPartSize (dc As IDeviceContext, type As ThemeSizeType) As Size

参数

dc: IDeviceContext

此操作将使用的 IDeviceContext。

type: ThemeSizeType

ThemeSizeType 值之一，指定为部件检索哪个大小值。

Size

一个 Size，它包含由 type 参数为当前视觉样式部件所指定的大小。

例外

ArgumentNullException

dc 为 null。

InvalidEnumArgumentException

prop 不是 ThemeSizeType 值之一。

示例

下面的代码示例演示如何在自定义控件中使用 GetPartSize(IDeviceContext, ThemeSizeType) 方法获取窗口标题栏、 “关闭 ”按钮、边框和视觉样式指定的大小控点的大小。这些大小用于计算用于绘制表示这些窗口部件的对象VisualStyleElement的对象的大小Rectangle。此代码示例是为类概述提供的更大示例的 VisualStyleRenderer 一部分。

    // Get the sizes and offsets for the window parts as specified
    // by the visual style.
private:
    void GetPartDetails()
    {
        // Do nothing further if visual styles are not enabled.
        if (!Application::RenderWithVisualStyles)
        {
            return;
        }

        Graphics^ g = this->CreateGraphics();

        // Get the size and offset of the close button.
        if (SetRenderer(windowElements["windowClose"]))
        {
            closeButtonSize =
                renderer->GetPartSize(g, ThemeSizeType::True);
            closeButtonOffset =
                renderer->GetPoint(PointProperty::Offset);
        }

        // Get the height of the window caption.
        if (SetRenderer(windowElements["windowCaption"]))
        {
            captionHeight = renderer->GetPartSize(g,
                ThemeSizeType::True).Height;
        }

        // Get the thickness of the left, bottom,
        // and right window frame.
        if (SetRenderer(windowElements["windowLeft"]))
        {
            frameThickness = renderer->GetPartSize(g,
                ThemeSizeType::True).Width;
        }

        // Get the size of the resizing gripper.
        if (SetRenderer(windowElements["statusGripper"]))
        {
            gripperSize = renderer->GetPartSize(g,
                ThemeSizeType::True);
        }

    }

// Get the sizes and offsets for the window parts as specified  
// by the visual style.
private void GetPartDetails()
{
    // Do nothing further if visual styles are not enabled.
    if (!Application.RenderWithVisualStyles)
    {
        return;
    }

    using (Graphics g = this.CreateGraphics())
    {
        // Get the size and offset of the close button.
        if (SetRenderer(windowElements["windowClose"]))
        {
            closeButtonSize =
                renderer.GetPartSize(g, ThemeSizeType.True);
            closeButtonOffset =
                renderer.GetPoint(PointProperty.Offset);
        }

        // Get the height of the window caption.
        if (SetRenderer(windowElements["windowCaption"]))
        {
            captionHeight = renderer.GetPartSize(g,
                ThemeSizeType.True).Height;
        }

        // Get the thickness of the left, bottom, 
        // and right window frame.
        if (SetRenderer(windowElements["windowLeft"]))
        {
            frameThickness = renderer.GetPartSize(g,
                ThemeSizeType.True).Width;
        }

        // Get the size of the resizing gripper.
        if (SetRenderer(windowElements["statusGripper"]))
        {
            gripperSize = renderer.GetPartSize(g,
                ThemeSizeType.True);
        }
    }
}

' Get the sizes and offsets for the window parts as specified 
' by the visual style.
Private Sub GetPartDetails()
    ' Do nothing further if visual styles are not enabled.
    If Not Application.RenderWithVisualStyles Then
        Return
    End If

    Using g As Graphics = Me.CreateGraphics()
        ' Get the size and offset of the close button.
        If SetRenderer(windowElements("windowClose")) Then
            closeButtonSize = _
                renderer.GetPartSize(g, ThemeSizeType.True)
            closeButtonOffset = _
                renderer.GetPoint(PointProperty.Offset)
        End If

        ' Get the height of the window caption.
        If SetRenderer(windowElements("windowCaption")) Then
            captionHeight = renderer.GetPartSize(g, _
                ThemeSizeType.True).Height
        End If

        ' Get the thickness of the left, bottom, and right 
        ' window frame.
        If SetRenderer(windowElements("windowLeft")) Then
            frameThickness = renderer.GetPartSize(g, _
                ThemeSizeType.True).Width
        End If

        ' Get the size of the resizing gripper.
        If SetRenderer(windowElements("statusGripper")) Then
            gripperSize = renderer.GetPartSize(g, _
                ThemeSizeType.True)
        End If
    End Using
End Sub

注解

通常，仅 True 应将和 Minimum 值用于 type 此方法的参数。

适用于

GetPartSize(IDeviceContext, Rectangle, ThemeSizeType)

使用指定的绘制边界返回当前视觉样式部件的指定大小属性的值。

public:
 System::Drawing::Size GetPartSize(System::Drawing::IDeviceContext ^ dc, System::Drawing::Rectangle bounds, System::Windows::Forms::VisualStyles::ThemeSizeType type);

public System.Drawing.Size GetPartSize (System.Drawing.IDeviceContext dc, System.Drawing.Rectangle bounds, System.Windows.Forms.VisualStyles.ThemeSizeType type);

member this.GetPartSize : System.Drawing.IDeviceContext * System.Drawing.Rectangle * System.Windows.Forms.VisualStyles.ThemeSizeType -> System.Drawing.Size

Public Function GetPartSize (dc As IDeviceContext, bounds As Rectangle, type As ThemeSizeType) As Size

参数

dc: IDeviceContext