Graphics.ResetClip 方法

public:
 void ResetClip();

public void ResetClip ();

member this.ResetClip : unit -> unit

Public Sub ResetClip ()

示例

下面的代码示例旨在与 Windows 窗体一起使用，并且它需要作为 PaintEventArgs e Paint 事件处理程序的参数。The following code example is designed for use with Windows Forms, and it requires PaintEventArgse, which is a parameter of the Paint event handler. 此代码执行以下操作：The code performs the following actions:

• 创建 (0，0) 左上角的矩形，并将该剪辑区域设置为此矩形。Creates a rectangle with upper-left corner at (0, 0) and sets the clipping region to this rectangle.

• 创建 (100，100) 左上角的第二个矩形，并将该剪辑区域设置为在第一个矩形) (的当前剪辑区域。Creates a second rectangle with upper-left corner at (100, 100) and sets the clipping region to the intersection of this rectangle and the current clipping region (the first rectangle).

• 使用纯蓝色画笔填充包含上一个矩形的大矩形。Fills a large rectangle that includes both previous rectangles with a solid blue brush.

• 将剪辑区域重置为无限。Resets the clipping region to infinite.

• 在两个剪辑区域周围绘制矩形;它对第一个剪辑矩形使用黑色钢笔，为第二个剪辑区域使用一个红笔。Draws rectangles around the two clipping regions; it uses a black pen for the first clipping rectangle and a red pen for the second clipping region.

结果是，只有两个矩形的交集用蓝色填充。The result is that only the intersection of the two rectangles is filled with blue.

public:
   void IntersectClipRectangleF2( PaintEventArgs^ e )
   {
      // Set clipping region.
      Rectangle clipRect = Rectangle(0,0,200,200);
      e->Graphics->SetClip( clipRect );

      // Update clipping region to intersection of
      // existing region with specified rectangle.
      RectangleF intersectRectF = RectangleF(100.0F,100.0F,200.0F,200.0F);
      e->Graphics->IntersectClip( intersectRectF );

      // Fill rectangle to demonstrate effective clipping region.
      e->Graphics->FillRectangle( gcnew SolidBrush( Color::Blue ), 0, 0, 500, 500 );

      // Reset clipping region to infinite.
      e->Graphics->ResetClip();

      // Draw clipRect and intersectRect to screen.
      e->Graphics->DrawRectangle( gcnew Pen( Color::Black ), clipRect );
      e->Graphics->DrawRectangle( gcnew Pen( Color::Red ), Rectangle::Round( intersectRectF ) );
   }

private void IntersectClipRectangleF2(PaintEventArgs e)
{

    // Set clipping region.
    Rectangle clipRect = new Rectangle(0, 0, 200, 200);
    e.Graphics.SetClip(clipRect);

    // Update clipping region to intersection of

    // existing region with specified rectangle.
    RectangleF intersectRectF = new RectangleF(100.0F, 100.0F, 200.0F, 200.0F);
    e.Graphics.IntersectClip(intersectRectF);

    // Fill rectangle to demonstrate effective clipping region.
    e.Graphics.FillRectangle(new SolidBrush(Color.Blue), 0, 0, 500, 500);

    // Reset clipping region to infinite.
    e.Graphics.ResetClip();

    // Draw clipRect and intersectRect to screen.
    e.Graphics.DrawRectangle(new Pen(Color.Black), clipRect);
    e.Graphics.DrawRectangle(new Pen(Color.Red), Rectangle.Round(intersectRectF));
}

Private Sub IntersectClipRectangleF2(ByVal e As PaintEventArgs)

    ' Set clipping region.
    Dim clipRect As New Rectangle(0, 0, 200, 200)
    e.Graphics.SetClip(clipRect)

    ' Update clipping region to intersection of

    ' existing region with specified rectangle.
    Dim intersectRectF As New RectangleF(100.0F, 100.0F, 200.0F, 200.0F)
    e.Graphics.IntersectClip(intersectRectF)

    ' Fill rectangle to demonstrate effective clipping region.
    e.Graphics.FillRectangle(New SolidBrush(Color.Blue), 0, 0, _
    500, 500)

    ' Reset clipping region to infinite.
    e.Graphics.ResetClip()

    ' Draw clipRect and intersectRect to screen.
    e.Graphics.DrawRectangle(New Pen(Color.Black), clipRect)
    e.Graphics.DrawRectangle(New Pen(Color.Red), _
    Rectangle.Round(intersectRectF))
End Sub

注解

如果的剪辑区域 Graphics 是无限的，则不会剪辑此绘图的项 Graphics 。When the clipping region of a Graphics is infinite, items that this Graphics draws are not clipped.

适用于