RadioButtonRenderer.GetGlyphSize(Graphics, RadioButtonState) 方法

定義

命名空間:

System.Windows.Forms

組件:

System.Windows.Forms.dll

傳回選項按鈕 (Option button) (也稱為選項按鈕 (Radio button)) 圖像的大小 (以像素為單位)。

public:
 static System::Drawing::Size GetGlyphSize(System::Drawing::Graphics ^ g, System::Windows::Forms::VisualStyles::RadioButtonState state);

public static System.Drawing.Size GetGlyphSize (System.Drawing.Graphics g, System.Windows.Forms.VisualStyles.RadioButtonState state);

static member GetGlyphSize : System.Drawing.Graphics * System.Windows.Forms.VisualStyles.RadioButtonState -> System.Drawing.Size

Public Shared Function GetGlyphSize (g As Graphics, state As RadioButtonState) As Size

參數

g

Graphics

繪製選項按鈕所用的 Graphics。

state

RadioButtonState

其中一個 RadioButtonState 值，指定選項按鈕的可見狀態。

傳回

Size

Size，表示選項按鈕圖像的大小 (以像素為單位)。

範例

下列程式碼範例會 GetGlyphSize 使用 方法來判斷選項按鈕文字的界限。 此程式碼範例是針對 類別提供的較大範例的 RadioButtonRenderer 一部分。

    // Define the text bounds so that the text rectangle
    // does not include the radio button.
public:
    property Rectangle TextRectangle
    {
        Rectangle get()
        {
            Graphics^ g = this->CreateGraphics();

            textRectangleValue.X = ClientRectangle.X +
                RadioButtonRenderer::GetGlyphSize(g,
                RadioButtonState::UncheckedNormal).Width;
            textRectangleValue.Y = ClientRectangle.Y;
            textRectangleValue.Width = ClientRectangle.Width -
                RadioButtonRenderer::GetGlyphSize(g,
                RadioButtonState::UncheckedNormal).Width;
            textRectangleValue.Height = ClientRectangle.Height;
         
            delete g;                

            return textRectangleValue;
        }
    }

// Define the text bounds so that the text rectangle 
// does not include the radio button.
public Rectangle TextRectangle
{
    get
    {
        using (Graphics g = this.CreateGraphics())
        {
            textRectangleValue.X = ClientRectangle.X +
                RadioButtonRenderer.GetGlyphSize(g,
                RadioButtonState.UncheckedNormal).Width;
            textRectangleValue.Y = ClientRectangle.Y;
            textRectangleValue.Width = ClientRectangle.Width -
                RadioButtonRenderer.GetGlyphSize(g,
                RadioButtonState.UncheckedNormal).Width;
            textRectangleValue.Height = ClientRectangle.Height;
        }

        return textRectangleValue;
    }
}

' Define the text bounds so that the text rectangle 
' does not include the radio button.
Public ReadOnly Property TextRectangle() As Rectangle
    Get
        Using g As Graphics = Me.CreateGraphics()
            With textRectangleValue
                .X = Me.ClientRectangle.X + _
                    RadioButtonRenderer.GetGlyphSize(g, _
                    RadioButtonState.UncheckedNormal).Width
                .Y = Me.ClientRectangle.Y
                .Width = Me.ClientRectangle.Width - _
                    RadioButtonRenderer.GetGlyphSize(g, _
                    RadioButtonState.UncheckedNormal).Width
                .Height = Me.ClientRectangle.Height
            End With
        End Using
        Return textRectangleValue
    End Get
End Property

備註

這個值是由作業系統的目前視覺化樣式所決定。