Graphics.DrawPath(Pen, GraphicsPath) 方法

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

绘制 GraphicsPath。

public:
 void DrawPath(System::Drawing::Pen ^ pen, System::Drawing::Drawing2D::GraphicsPath ^ path);

public void DrawPath (System.Drawing.Pen pen, System.Drawing.Drawing2D.GraphicsPath path);

member this.DrawPath : System.Drawing.Pen * System.Drawing.Drawing2D.GraphicsPath -> unit

Public Sub DrawPath (pen As Pen, path As GraphicsPath)

参数

pen

Pen

Pen，它确定路径的颜色、宽度和样式。

path

GraphicsPath

要绘制的 GraphicsPath。

例外

ArgumentNullException

pen 为 null。

或

path 为 null。

示例

下面的代码示例旨在与 Windows 窗体 一起使用，它需要 PaintEventArgse，这是事件处理程序的参数Paint。 此代码执行以下操作：

• 创建图形路径对象并为其添加一个椭圆。

• 创建黑色笔。

• 绘制屏幕的图形路径。

public:
   void DrawPathEllipse( PaintEventArgs^ e )
   {
      // Create graphics path object and add ellipse.
      GraphicsPath^ graphPath = gcnew GraphicsPath;
      graphPath->AddEllipse( 0, 0, 200, 100 );

      // Create pen.
      Pen^ blackPen = gcnew Pen( Color::Black,3.0f );

      // Draw graphics path to screen.
      e->Graphics->DrawPath( blackPen, graphPath );
   }

public void DrawPathEllipse(PaintEventArgs e)
{
             
    // Create graphics path object and add ellipse.
    GraphicsPath graphPath = new GraphicsPath();
    graphPath.AddEllipse(0, 0, 200, 100);
             
    // Create pen.
    Pen blackPen = new Pen(Color.Black, 3);
             
    // Draw graphics path to screen.
    e.Graphics.DrawPath(blackPen, graphPath);
}

Public Sub DrawPathEllipse(ByVal e As PaintEventArgs)

    ' Create graphics path object and add ellipse.
    Dim graphPath As New GraphicsPath
    graphPath.AddEllipse(0, 0, 200, 100)

    ' Create pen.
    Dim blackPen As New Pen(Color.Black, 3)

    ' Draw graphics path to screen.
    e.Graphics.DrawPath(blackPen, graphPath)
End Sub

注解

图形上下文中的当前转换在绘制之前应用于 GraphicsPath 。