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Pen.Width 屬性

定義

取得或設定這個 Pen 的寬度,以用於繪圖的 Graphics 物件為單位。

public:
 property float Width { float get(); void set(float value); };
public float Width { get; set; }
member this.Width : single with get, set
Public Property Width As Single

屬性值

這個 Pen 的寬度。

例外狀況

Width 屬性設定於不可變動的 Pen 上,例如 Pens 類別傳回的項目。

範例

下列程式代碼範例示範在 上Pen設定 WidthLineJoin 屬性的效果。

此範例的設計目的是要與 Windows Forms 搭配使用。 將程式代碼貼到表單中,並在處理表單的事件時呼叫 ShowLineJoin 方法,並e傳遞為 PaintEventArgsPaint

private:
   void ShowLineJoin( PaintEventArgs^ e )
   {
      // Create a new pen.
      Pen^ skyBluePen = gcnew Pen( Brushes::DeepSkyBlue );

      // Set the pen's width.
      skyBluePen->Width = 8.0F;

      // Set the LineJoin property.
      skyBluePen->LineJoin = System::Drawing::Drawing2D::LineJoin::Bevel;

      // Draw a rectangle.
      e->Graphics->DrawRectangle( skyBluePen, Rectangle(40,40,150,200) );

      //Dispose of the pen.
      delete skyBluePen;
   }
private void ShowLineJoin(PaintEventArgs e)
{

    // Create a new pen.
    Pen skyBluePen = new Pen(Brushes.DeepSkyBlue);

    // Set the pen's width.
    skyBluePen.Width = 8.0F;

    // Set the LineJoin property.
    skyBluePen.LineJoin = System.Drawing.Drawing2D.LineJoin.Bevel;

    // Draw a rectangle.
    e.Graphics.DrawRectangle(skyBluePen, 
        new Rectangle(40, 40, 150, 200));

    //Dispose of the pen.
    skyBluePen.Dispose();
}
Private Sub ShowLineJoin(ByVal e As PaintEventArgs)

    ' Create a new pen.
    Dim skyBluePen As New Pen(Brushes.DeepSkyBlue)

    ' Set the pen's width.
    skyBluePen.Width = 8.0F

    ' Set the LineJoin property.
    skyBluePen.LineJoin = Drawing2D.LineJoin.Bevel

    ' Draw a rectangle.
    e.Graphics.DrawRectangle(skyBluePen, _
        New Rectangle(40, 40, 150, 200))

    'Dispose of the pen.
    skyBluePen.Dispose()

End Sub

備註

您可以使用物件的 PageUnit 屬性來存取物件的測量Graphics單位。 測量單位通常是圖元。 Width為 0 的會導致Pen繪圖,就像Width是 1 一樣。

適用於