Region.Complement 方法

定義

命名空間:

System.Drawing

組件:

System.Drawing.Common.dll

套件:

System.Drawing.Common v9.0.0-preview.6.24327.6

將此 Region 更新為未與這個 Region相交之指定 RectangleF 結構的部分。

多載

Complement(Region)	更新此 Region，以包含未與這個 Region相交的指定 Region 部分。
Complement(RectangleF)	更新此 Region，以包含未與這個 Region相交之指定 RectangleF 結構的部分。
Complement(GraphicsPath)	更新此 Region，以包含未與這個 Region相交的指定 GraphicsPath 部分。
Complement(Rectangle)	更新此 Region，以包含未與這個 Region相交之指定 Rectangle 結構的部分。

Complement(Region)

來源:

Region.cs

更新此 Region，以包含未與這個 Region相交的指定 Region 部分。

public:
 void Complement(System::Drawing::Region ^ region);

public void Complement (System.Drawing.Region region);

member this.Complement : System.Drawing.Region -> unit

Public Sub Complement (region As Region)

參數

region

Region

要補充這個 Region 物件的 Region 物件。

例外狀況

ArgumentNullException

region null。

範例

下列範例的設計目的是要與 Windows Forms 搭配使用，而且需要 PaintEventArgse，這是 Paint 事件處理程式的參數。 程式代碼會執行下列動作：

• 建立矩形，並將它繪製到黑色的畫面

• 建立第二個矩形，與第一個矩形交集，並以紅色繪製到畫面。

• 使用第一個矩形建立一個區域，並使用第二個矩形建立第二個區域。

• 取得與第二個區域結合時，該第一個區域的補碼。

• 以藍色填滿補碼區域，並將其繪製到螢幕。

請注意，未與第一個區域交集的第二個區域區域會以藍色表示。

public:
   void Complement_Region_Example( PaintEventArgs^ e )
   {
      // Create the first rectangle and draw it to the screen in black.
      Rectangle regionRect = Rectangle(20,20,100,100);
      e->Graphics->DrawRectangle( Pens::Black, regionRect );

      // Create the second rectangle and draw it to the screen in red.
      Rectangle complementRect = Rectangle(90,30,100,100);
      e->Graphics->DrawRectangle( Pens::Red, complementRect );

      // Create a region from the first rectangle.
      System::Drawing::Region^ myRegion = gcnew System::Drawing::Region( regionRect );

      // Create a complement region.
      System::Drawing::Region^ complementRegion = gcnew System::Drawing::Region( complementRect );

      // Get the complement of myRegion when combined with
      // complementRegion.
      myRegion->Complement( complementRegion );

      // Fill the complement area with blue.
      SolidBrush^ myBrush = gcnew SolidBrush( Color::Blue );
      e->Graphics->FillRegion( myBrush, myRegion );
   }

public void Complement_Region_Example(PaintEventArgs e)
{
             
    // Create the first rectangle and draw it to the screen in black.
    Rectangle regionRect = new Rectangle(20, 20, 100, 100);
    e.Graphics.DrawRectangle(Pens.Black, regionRect);
             
    // Create the second rectangle and draw it to the screen in red.
    Rectangle complementRect = new Rectangle(90, 30, 100, 100);
    e.Graphics.DrawRectangle(Pens.Red, complementRect);
             
    // Create a region from the first rectangle.
    Region myRegion = new Region(regionRect);
             
    // Create a complement region.
    Region complementRegion = new Region(complementRect);
             
    // Get the complement of myRegion when combined with
             
    // complementRegion.
    myRegion.Complement(complementRegion);
             
    // Fill the complement area with blue.
    SolidBrush myBrush = new SolidBrush(Color.Blue);
    e.Graphics.FillRegion(myBrush, myRegion);
}

Public Sub Complement_Region_Example(ByVal e As PaintEventArgs)

    ' Create the first rectangle and draw it to the screen in black.
    Dim regionRect As New Rectangle(20, 20, 100, 100)
    e.Graphics.DrawRectangle(Pens.Black, regionRect)

    ' Create the second rectangle and draw it to the screen in red.
    Dim complementRect As New Rectangle(90, 30, 100, 100)
    e.Graphics.DrawRectangle(Pens.Red, complementRect)

    ' create a region from the first rectangle.
    Dim myRegion As New [Region](regionRect)

    ' Create a complement region.
    Dim complementRegion As New [Region](complementRect)

    ' Get the complement of myRegion when combined with
    ' complementRegion.
    myRegion.Complement(complementRegion)

    ' Fill the complement area with blue.
    Dim myBrush As New SolidBrush(Color.Blue)
    e.Graphics.FillRegion(myBrush, myRegion)
End Sub

Complement(RectangleF)

來源:

Region.cs

更新此 Region，以包含未與這個 Region相交之指定 RectangleF 結構的部分。

public:
 void Complement(System::Drawing::RectangleF rect);

public void Complement (System.Drawing.RectangleF rect);

member this.Complement : System.Drawing.RectangleF -> unit

Public Sub Complement (rect As RectangleF)

參數

rect

RectangleF

要補充這個 Region的 RectangleF 結構。

範例

下列程式代碼範例是專為搭配 Windows Forms 使用而設計，而且需要 PaintEventArgse，這是 Paint 事件處理程式的參數。 程式代碼會執行下列動作：

• 建立矩形，並將它繪製到黑色的畫面。

• 建立第二個矩形，與第一個矩形交集，並以紅色繪製到畫面。

• 使用第一個矩形建立區域。

• 取得該區域與第二個矩形結合的補碼。

• 以藍色填滿補碼區域，並將其繪製到螢幕。

請注意，與區域交集的第二個矩形區域會以藍色表示。

public:
   void Complement_RectF_Example( PaintEventArgs^ e )
   {
      // Create the first rectangle and draw it to the screen in black.
      Rectangle regionRect = Rectangle(20,20,100,100);
      e->Graphics->DrawRectangle( Pens::Black, regionRect );

      // Create the second rectangle and draw it to the screen in red.
      RectangleF complementRect = RectangleF(90,30,100,100);
      e->Graphics->DrawRectangle( Pens::Red, Rectangle::Round( complementRect ) );

      // Create a region using the first rectangle.
      System::Drawing::Region^ myRegion = gcnew System::Drawing::Region( regionRect );

      // Get the complement of the region combined with the second
      // rectangle.
      myRegion->Complement( complementRect );

      // Fill the complement area with blue.
      SolidBrush^ myBrush = gcnew SolidBrush( Color::Blue );
      e->Graphics->FillRegion( myBrush, myRegion );
   }

public void Complement_RectF_Example(PaintEventArgs e)
{
             
    // Create the first rectangle and draw it to the screen in black.
    Rectangle regionRect = new Rectangle(20, 20, 100, 100);
    e.Graphics.DrawRectangle(Pens.Black, regionRect);
             
    // Create the second rectangle and draw it to the screen in red.
    RectangleF complementRect = new RectangleF(90, 30, 100, 100);
    e.Graphics.DrawRectangle(Pens.Red,
        Rectangle.Round(complementRect));
             
    // Create a region using the first rectangle.
    Region myRegion = new Region(regionRect);
             
    // Get the complement of the region combined with the second
             
    // rectangle.
    myRegion.Complement(complementRect);
             
    // Fill the complement area with blue.
    SolidBrush myBrush = new SolidBrush(Color.Blue);
    e.Graphics.FillRegion(myBrush, myRegion);
}

Public Sub Complement_RectF_Example(ByVal e As PaintEventArgs)

    ' Create the first rectangle and draw it to the screen in black.
    Dim regionRect As New Rectangle(20, 20, 100, 100)
    e.Graphics.DrawRectangle(Pens.Black, regionRect)

    ' Create the second rectangle and draw it to the screen in red.
    Dim complementRect As New RectangleF(90, 30, 100, 100)
    e.Graphics.DrawRectangle(Pens.Red, _
    Rectangle.Round(complementRect))

    ' Create a region using the first rectangle.
    Dim myRegion As New [Region](regionRect)

    ' Get the complement of the region combined with the second
    ' rectangle.
    myRegion.Complement(complementRect)

    ' Fill the complement area with blue.
    Dim myBrush As New SolidBrush(Color.Blue)
    e.Graphics.FillRegion(myBrush, myRegion)
End Sub

Complement(GraphicsPath)

來源:

Region.cs

更新此 Region，以包含未與這個 Region相交的指定 GraphicsPath 部分。

public:
 void Complement(System::Drawing::Drawing2D::GraphicsPath ^ path);

public void Complement (System.Drawing.Drawing2D.GraphicsPath path);

member this.Complement : System.Drawing.Drawing2D.GraphicsPath -> unit

Public Sub Complement (path As GraphicsPath)

參數

path

GraphicsPath

要補充此 Region的 GraphicsPath。

例外狀況

ArgumentNullException

path null。

範例

下列程式代碼範例是專為搭配 Windows Forms 使用而設計，而且需要 PaintEventArgse，這是 Paint 事件處理程式的參數。 程式代碼會執行下列動作：

• 建立矩形，並將它繪製到黑色的畫面。

• 建立第二個矩形，與第一個矩形交集，並以紅色繪製到畫面。

• 使用第一個矩形建立區域。

• 建立 GraphicsPath，並將第二個矩形加入其中。

• 當與 GraphicsPath結合時，取得區域的補碼。

• 以藍色填滿補碼區域，並將其繪製到螢幕。

請注意，未與區域交集的 GraphicsPath 區域會以藍色標示。

public:
   void Complement_Path_Example( PaintEventArgs^ e )
   {
      // Create the first rectangle and draw it to the screen in black.
      Rectangle regionRect = Rectangle(20,20,100,100);
      e->Graphics->DrawRectangle( Pens::Black, regionRect );

      // Create the second rectangle and draw it to the screen in red.
      Rectangle complementRect = Rectangle(90,30,100,100);
      e->Graphics->DrawRectangle( Pens::Red, complementRect );

      // Create a graphics path and add the second rectangle to it.
      GraphicsPath^ complementPath = gcnew GraphicsPath;
      complementPath->AddRectangle( complementRect );

      // Create a region using the first rectangle.
      System::Drawing::Region^ myRegion = gcnew System::Drawing::Region( regionRect );

      // Get the complement of myRegion when combined with
      // complementPath.
      myRegion->Complement( complementPath );

      // Fill the complement area with blue.
      SolidBrush^ myBrush = gcnew SolidBrush( Color::Blue );
      e->Graphics->FillRegion( myBrush, myRegion );
   }

public void Complement_Path_Example(PaintEventArgs e)
{
             
    // Create the first rectangle and draw it to the screen in black.
    Rectangle regionRect = new Rectangle(20, 20, 100, 100);
    e.Graphics.DrawRectangle(Pens.Black, regionRect);
             
    // Create the second rectangle and draw it to the screen in red.
    Rectangle complementRect = new Rectangle(90, 30, 100, 100);
    e.Graphics.DrawRectangle(Pens.Red, complementRect);
             
    // Create a graphics path and add the second rectangle to it.
    GraphicsPath complementPath = new GraphicsPath();
    complementPath.AddRectangle(complementRect);
             
    // Create a region using the first rectangle.
    Region myRegion = new Region(regionRect);
             
    // Get the complement of myRegion when combined with
             
    // complementPath.
    myRegion.Complement(complementPath);
             
    // Fill the complement area with blue.
    SolidBrush myBrush = new SolidBrush(Color.Blue);
    e.Graphics.FillRegion(myBrush, myRegion);
}

Public Sub Complement_Path_Example(ByVal e As PaintEventArgs)

    ' Create the first rectangle and draw it to the screen in black.
    Dim regionRect As New Rectangle(20, 20, 100, 100)
    e.Graphics.DrawRectangle(Pens.Black, regionRect)

    ' Create the second rectangle and draw it to the screen in red.
    Dim complementRect As New Rectangle(90, 30, 100, 100)
    e.Graphics.DrawRectangle(Pens.Red, complementRect)

    ' Create a graphics path and add the second rectangle to it.
    Dim complementPath As New GraphicsPath
    complementPath.AddRectangle(complementRect)

    ' Create a region using the first rectangle.
    Dim myRegion As New [Region](regionRect)

    ' Get the complement of myRegion when combined with
    ' complementPath.
    myRegion.Complement(complementPath)

    ' Fill the complement area with blue.
    Dim myBrush As New SolidBrush(Color.Blue)
    e.Graphics.FillRegion(myBrush, myRegion)
End Sub

Complement(Rectangle)

來源:

Region.cs

更新此 Region，以包含未與這個 Region相交之指定 Rectangle 結構的部分。

public:
 void Complement(System::Drawing::Rectangle rect);

public void Complement (System.Drawing.Rectangle rect);

member this.Complement : System.Drawing.Rectangle -> unit

Public Sub Complement (rect As Rectangle)

參數

rect

Rectangle

要補充這個 Region的 Rectangle 結構。

範例

如需範例，請參閱 Complement(RectangleF) 方法。