Graphics.PageUnit 屬性

定義

命名空間:

System.Drawing

組件:

System.Drawing.Common.dll

套件:

System.Drawing.Common v8.0.0

來源:

Graphics.cs

取得或設定在這個 Graphics 中畫面座標使用的測量單位。

public:
 property System::Drawing::GraphicsUnit PageUnit { System::Drawing::GraphicsUnit get(); void set(System::Drawing::GraphicsUnit value); };

public System.Drawing.GraphicsUnit PageUnit { get; set; }

member this.PageUnit : System.Drawing.GraphicsUnit with get, set

Public Property PageUnit As GraphicsUnit

屬性值

GraphicsUnit

其中一個 GraphicsUnit 值，World 除外。

例外狀況

InvalidEnumArgumentException

PageUnit 設定為 World，這個值不是實體單位。

範例

下列程式碼範例示範變更 PageUnit 屬性的效果。

此範例的設計目的是要與Windows Forms搭配使用。 將程式碼貼到表單中，並在處理表單的事件 Paint 時呼叫 ChangePageUnit 方法，並傳遞 e 為 PaintEventArgs 。

private:
   void ChangePageUnit( PaintEventArgs^ e )
   {
      // Create a rectangle.
      Rectangle rectangle1 = Rectangle(20,20,50,100);

      // Draw its outline.
      e->Graphics->DrawRectangle( Pens::SlateBlue, rectangle1 );

      // Change the page scale.  
      e->Graphics->PageUnit = GraphicsUnit::Point;

      // Draw the rectangle again.
      e->Graphics->DrawRectangle( Pens::Tomato, rectangle1 );
   }

private void ChangePageUnit(PaintEventArgs e)
{

    // Create a rectangle.
    Rectangle rectangle1 = new Rectangle(20, 20, 50, 100);

    // Draw its outline.
    e.Graphics.DrawRectangle(Pens.SlateBlue, rectangle1);

    // Change the page scale.  
    e.Graphics.PageUnit = GraphicsUnit.Point;

    // Draw the rectangle again.
    e.Graphics.DrawRectangle(Pens.Tomato, rectangle1);
}

Private Sub ChangePageUnit(ByVal e As PaintEventArgs)

    ' Create a rectangle.
    Dim rectangle1 As New Rectangle(20, 20, 50, 100)

    ' Draw its outline.
    e.Graphics.DrawRectangle(Pens.SlateBlue, rectangle1)

    ' Change the page scale.  
    e.Graphics.PageUnit = GraphicsUnit.Point

    ' Draw the rectangle again.
    e.Graphics.DrawRectangle(Pens.Tomato, rectangle1)

End Sub

備註

圖形單位是用於這個 Graphics 中頁面座標的量值單位。

另請參閱

• 座標系統類型