Graphics.SmoothingMode 属性

获取或设置此 Graphics 的呈现质量。

**命名空间:**System.Drawing
**程序集:**System.Drawing（在 system.drawing.dll 中）

语法

声明
Public Property SmoothingMode As SmoothingMode
用法
Dim instance As Graphics
Dim value As SmoothingMode

value = instance.SmoothingMode

instance.SmoothingMode = value

public SmoothingMode SmoothingMode { get; set; }

public:
property SmoothingMode SmoothingMode {
    SmoothingMode get ();
    void set (SmoothingMode value);
}

/** @property */
public SmoothingMode get_SmoothingMode ()

/** @property */
public void set_SmoothingMode (SmoothingMode value)

public function get SmoothingMode () : SmoothingMode

public function set SmoothingMode (value : SmoothingMode)

属性值

SmoothingMode 值之一。

备注

平滑模式指定直线、曲线和已填充区域的边缘是否采用平滑处理（又称锯齿消除功能）。但有一个例外，路径渐变画笔并不遵循平滑模式。用 PathGradientBrush 填充的区域以同样的方式呈现（带锯齿边缘），与 SmoothingMode 属性无关。

示例

下面的方法演示设置 DashCap、DashPattern 和 SmoothingMode 属性的效果。

此示例是针对使用 Windows 窗体而设计的。将代码粘贴到一个窗体中，然后在处理窗体的 Paint 事件时调用 ShowPensAndSmoothingMode 方法，并传递 e 作为 PaintEventArgs。

Private Sub ShowPensAndSmoothingMode(ByVal e As PaintEventArgs)

    ' Set the SmoothingMode property to smooth the line.
    e.Graphics.SmoothingMode = Drawing2D.SmoothingMode.AntiAlias

    ' Create a new Pen object.
    Dim greenPen As New Pen(Color.Green)

    ' Set the width to 6.
    greenPen.Width = 6.0F

    ' Set the DashCap to round.
    greenPen.DashCap = Drawing2D.DashCap.Round

    ' Create a custom dash pattern.
    greenPen.DashPattern = New Single() {4.0F, 2.0F, 1.0F, 3.0F}

    ' Draw a line.
    e.Graphics.DrawLine(greenPen, 20.0F, 20.0F, 100.0F, 240.0F)

    ' Change the SmoothingMode to none.
    e.Graphics.SmoothingMode = Drawing2D.SmoothingMode.None

    ' Draw another line.
    e.Graphics.DrawLine(greenPen, 100.0F, 240.0F, 160.0F, 20.0F)

    ' Dispose of the custom pen.
    greenPen.Dispose()
End Sub

private void ShowPensAndSmoothingMode(PaintEventArgs e)
{

    // Set the SmoothingMode property to smooth the line.
    e.Graphics.SmoothingMode = 
        System.Drawing.Drawing2D.SmoothingMode.AntiAlias;

    // Create a new Pen object.
    Pen greenPen = new Pen(Color.Green);

    // Set the width to 6.
    greenPen.Width = 6.0F;

    // Set the DashCap to round.
    greenPen.DashCap = System.Drawing.Drawing2D.DashCap.Round;

    // Create a custom dash pattern.
    greenPen.DashPattern = new float[]{4.0F, 2.0F, 1.0F, 3.0F};

    // Draw a line.
    e.Graphics.DrawLine(greenPen, 20.0F, 20.0F, 100.0F, 240.0F);

    // Change the SmoothingMode to none.
    e.Graphics.SmoothingMode = 
        System.Drawing.Drawing2D.SmoothingMode.None;

    // Draw another line.
    e.Graphics.DrawLine(greenPen, 100.0F, 240.0F, 160.0F, 20.0F);

    // Dispose of the custom pen.
    greenPen.Dispose();
}

private:
   void ShowPensAndSmoothingMode( PaintEventArgs^ e )
   {
      // Set the SmoothingMode property to smooth the line.
      e->Graphics->SmoothingMode = System::Drawing::Drawing2D::SmoothingMode::AntiAlias;

      // Create a new Pen object.
      Pen^ greenPen = gcnew Pen( Color::Green );

      // Set the width to 6.
      greenPen->Width = 6.0F;

      // Set the DashCap to round.
      greenPen->DashCap = System::Drawing::Drawing2D::DashCap::Round;

      // Create a custom dash pattern.
      array<Single>^temp0 = {4.0F,2.0F,1.0F,3.0F};
      greenPen->DashPattern = temp0;

      // Draw a line.
      e->Graphics->DrawLine( greenPen, 20.0F, 20.0F, 100.0F, 240.0F );

      // Change the SmoothingMode to none.
      e->Graphics->SmoothingMode = System::Drawing::Drawing2D::SmoothingMode::None;

      // Draw another line.
      e->Graphics->DrawLine( greenPen, 100.0F, 240.0F, 160.0F, 20.0F );

      // Dispose of the custom pen.
      delete greenPen;
   }

private void ShowPensAndSmoothingMode(PaintEventArgs e)
{
    // Set the SmoothingMode property to smooth the line.
    e.get_Graphics().set_SmoothingMode(
        System.Drawing.Drawing2D.SmoothingMode.AntiAlias);

    // Create a new Pen object.
    Pen greenPen = new Pen(Color.get_Green());

    // Set the width to 6.
    greenPen.set_Width(6);

    // Set the DashCap to round.
    greenPen.set_DashCap(System.Drawing.Drawing2D.DashCap.Round);

    // Create a custom dash pattern.
    greenPen.set_DashPattern(new float[] { 4, 2, 1, 3 });

    // Draw a line.
    e.get_Graphics().DrawLine(greenPen, 20, 20, 100, 240);

    // Change the SmoothingMode to none.
    e.get_Graphics().set_SmoothingMode(
        System.Drawing.Drawing2D.SmoothingMode.None);

    // Draw another line.
    e.get_Graphics().DrawLine(greenPen, 100, 240, 160, 20);

    // Dispose of the custom pen.
    greenPen.Dispose();
} //ShowPensAndSmoothingMode

平台

Windows 98、Windows 2000 SP4、Windows CE、Windows Millennium Edition、Windows Mobile for Pocket PC、Windows Mobile for Smartphone、Windows Server 2003、Windows XP Media Center Edition、Windows XP Professional x64 Edition、Windows XP SP2、Windows XP Starter Edition

.NET Framework 并不是对每个平台的所有版本都提供支持。有关受支持版本的列表，请参见系统要求。

版本信息

.NET Framework

受以下版本支持：2.0、1.1、1.0

请参见

参考

Graphics 类
Graphics 成员
System.Drawing 命名空间