Region.Complement 方法

定義

命名空間:

System.Drawing

組件:

System.Drawing.Common.dll

套件:

System.Drawing.Common v11.0.0-preview.7.26381.103

將此Region更新為不與此RectangleF相交的結構Region部分。

多載

名稱	Description
Complement(Region)	更新此參數 Region ，包含指定中 Region 不與此 Region相交的部分。
Complement(RectangleF)	更新此部分Region，包含不與此RectangleF相交的結構部分Region。
Complement(GraphicsPath)	更新此參數 Region ，包含指定中 GraphicsPath 不與此 Region相交的部分。
Complement(Rectangle)	更新此部分Region，包含不與此Rectangle相交的結構部分Region。

Complement(Region)

來源:

Region.cs

更新此參數 Region ，包含指定中 Region 不與此 Region相交的部分。

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

這個 Region 物件是用來補充這個 Region 物件的。

例外狀況

ArgumentNullException

region 是 null。

範例

以下範例是為 Windows 表單設計，並需要 PaintEventArgse，這是事件處理器的 Paint 參數。 此程式碼會執行下列動作：

• 建立一個矩形並以黑色畫到螢幕上

• 會產生第二個矩形，與第一個相交，並以紅色畫出畫面。

• 用第一個矩形建立一個區域，再用第二個矩形建立第二個區域。

• 當與第二個區域結合時，會得到該第一個區域的補集。

• 用藍色填滿補集區域並畫到螢幕上。

注意第二個區域中不與第一個區域相交的區域被塗成藍色。

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

更新此部分Region，包含不與此RectangleF相交的結構部分Region。

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

RectangleF補充此結構Region。

範例

以下程式碼範例是為 Windows Forms 設計的，並需要 PaintEventArgse，這是 Paint 事件處理程序的參數。 此程式碼會執行下列動作：

• 建立一個矩形，並以黑色畫到螢幕上。

• 會產生第二個矩形，與第一個相交，並以紅色畫出畫面。

• 用第一個矩形建立一個區域。

• 得到該區域的補集與第二個矩形的結合。

• 用藍色填滿補集區域並畫到螢幕上。

注意第二個矩形中不與該區域相交的區域被塗成藍色。

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

更新此參數 Region ，包含指定中 GraphicsPath 不與此 Region相交的部分。

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

GraphicsPath補充此項Region。

例外狀況

ArgumentNullException

path 是 null。

範例

以下程式碼範例是為 Windows Forms 設計的，並需要 PaintEventArgse，這是 Paint 事件處理程序的參數。 此程式碼會執行下列動作：

• 建立一個矩形，並以黑色畫到螢幕上。

• 會產生第二個矩形，與第一個相交，並以紅色畫出畫面。

• 用第一個矩形建立一個區域。

• 建立一個 GraphicsPath，並將第二個矩形加入其中。

• 與 結合 GraphicsPath後得到區域的補集。

• 用藍色填滿補集區域並畫到螢幕上。

注意 中 GraphicsPath 不與該區域相交的區域被塗成藍色。

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

更新此部分Region，包含不與此Rectangle相交的結構部分Region。

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

Rectangle補充此結構Region。

範例

如需範例，請參閱 Complement(RectangleF) 方法。