GraphicsPath.ClearMarkers 方法

定义

命名空间:

System.Drawing.Drawing2D

程序集:

System.Drawing.Common.dll

包:

System.Drawing.Common v8.0.0

Source:

GraphicsPath.cs

清除此路径的所有标记。

public:
 void ClearMarkers();

public void ClearMarkers ();

member this.ClearMarkers : unit -> unit

Public Sub ClearMarkers ()

示例

下面的代码示例设计用于 Windows 窗体，它需要 PaintEventArgse事件OnPaint对象。 此代码执行以下操作：

• 创建路径。

• 将多个对象添加到路径。

• 向路径添加标记。

• 清除路径中的所有标记。

• 绘制到屏幕的路径。

private:
   void ClearMarkersExample( PaintEventArgs^ e )
   {
      // Set several markers in a path.
      GraphicsPath^ myPath = gcnew GraphicsPath;
      myPath->AddEllipse( 0, 0, 100, 200 );
      myPath->SetMarkers();
      myPath->AddLine( Point(100,100), Point(200,100) );
      Rectangle rect = Rectangle(200,0,100,200);
      myPath->AddRectangle( rect );
      myPath->SetMarkers();
      myPath->AddLine( Point(250,200), Point(250,300) );
      myPath->SetMarkers();

      // Clear the markers.
      myPath->ClearMarkers();

      // Draw the path to the screen.
      Pen^ myPen = gcnew Pen( Color::Black,2.0f );
      e->Graphics->DrawPath( myPen, myPath );
   }

private void ClearMarkersExample(PaintEventArgs e)
{
             
    // Set several markers in a path.
    GraphicsPath myPath = new GraphicsPath();
    myPath.AddEllipse(0, 0, 100, 200);
    myPath.SetMarkers();
    myPath.AddLine(new Point(100, 100), new Point(200, 100));
    Rectangle rect = new Rectangle(200, 0, 100, 200);
    myPath.AddRectangle(rect);
    myPath.SetMarkers();
    myPath.AddLine(new Point(250, 200), new Point(250, 300));
    myPath.SetMarkers();
             
    // Clear the markers.
    myPath.ClearMarkers();
             
    // Draw the path to the screen.
    Pen myPen = new Pen(Color.Black, 2);
    e.Graphics.DrawPath(myPen, myPath);
}

Public Sub ClearMarkersExample(ByVal e As PaintEventArgs)

    ' Set several markers in a path.
    Dim myPath As New GraphicsPath
    myPath.AddEllipse(0, 0, 100, 200)
    myPath.SetMarkers()
    myPath.AddLine(New Point(100, 100), New Point(200, 100))
    Dim rect As New Rectangle(200, 0, 100, 200)
    myPath.AddRectangle(rect)
    myPath.SetMarkers()
    myPath.AddLine(New Point(250, 200), New Point(250, 300))
    myPath.SetMarkers()

    ' Clear the markers.
    myPath.ClearMarkers()

    ' Draw the path to the screen.
    Dim myPen As New Pen(Color.Black, 2)
    e.Graphics.DrawPath(myPen, myPath)
End Sub

注解

SetMarkers使用 方法在 中的GraphicsPath当前位置创建标记。 NextMarker使用 方法循环访问路径中的现有标记。

标记用于分隔子路径组。 两个标记之间可以包含一个或多个子路径。