Graphics.PageUnit 属性

定义

命名空间:

System.Drawing

程序集:

System.Drawing.Common.dll

包:

System.Drawing.Common v8.0.0

Source:

Graphics.cs

获取或设置用于此 Graphics 中的页坐标的度量单位。

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

属性值

GraphicsUnit

除 GraphicsUnit 以外的 World 值之一。

例外

InvalidEnumArgumentException

PageUnit 设置为 World，此值不是物理单位。

示例

下面的代码示例演示更改 PageUnit 属性的效果。

此示例旨在与 Windows 窗体 一起使用。 将代码粘贴到窗体中，并在处理窗体的 Paint 事件时调用 ChangePageUnit 方法，作为 ePaintEventArgs传递。

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

注解

图形单位是用于此 Graphics中的页面坐标的度量单位。

另请参阅

• 坐标系类型