Rectangle.Contains 方法

定义

命名空间:

System.Drawing

程序集:

System.Drawing.Primitives.dll

确定指定的点是否包含在此 Rectangle 定义的矩形区域范围内。

重载

Contains(Point)	确定指定的点是否包含在此 Rectangle 结构内。
Contains(Rectangle)	确定 rect 表示的矩形区域是否完全包含在此 Rectangle 结构内。
Contains(Int32, Int32)	确定指定的点是否包含在此 Rectangle 结构内。

Contains(Point)

Source:

Rectangle.cs

确定指定的点是否包含在此 Rectangle 结构内。

public:
 bool Contains(System::Drawing::Point pt);

public readonly bool Contains (System.Drawing.Point pt);

member this.Contains : System.Drawing.Point -> bool

Public Function Contains (pt As Point) As Boolean

参数

pt

Point

要测试的 Point。

返回

Boolean

如果 pt 表示的点包含在此 Rectangle 结构中，此方法将返回 true；否则将返回 false。

注解

必须规范化包含的矩形，此方法才能返回准确的结果。

Contains(Rectangle)

Source:

Rectangle.cs

确定 rect 表示的矩形区域是否完全包含在此 Rectangle 结构内。

public:
 bool Contains(System::Drawing::Rectangle rect);

public readonly bool Contains (System.Drawing.Rectangle rect);

member this.Contains : System.Drawing.Rectangle -> bool

Public Function Contains (rect As Rectangle) As Boolean

参数

rect

Rectangle

要测试的 Rectangle。

返回

Boolean

如果 rect 表示的矩形区域完全包含在此 Rectangle 结构内，此方法将返回 true；否则将返回 false。

示例

下面的代码示例演示 Contains 了 方法和 SystemPens 类。 此示例旨在与 Windows 窗体一起使用。 将此代码粘贴到包含名为 的Button1按钮的窗体中，从窗体的构造函数或Load方法调用 DrawFirstRectangle ，并将 方法与按钮的 Click 事件相关联Button1_Click。

private:
   [UIPermission(SecurityAction::Demand, Window=UIPermissionWindow::AllWindows)]
   void DrawFirstRectangle()
   {
      Rectangle rectangle1 = Rectangle(70,70,100,150);
      ControlPaint::DrawReversibleFrame( rectangle1, SystemColors::Highlight, FrameStyle::Thick );
   }

   void Button1_Click( Object^ /*sender*/, EventArgs^ /*e*/ )
   {
      Rectangle rectangle1 = Rectangle(70,70,100,150);

      // Get the bounds of the screen.
      Rectangle screenRectangle = Screen::PrimaryScreen->Bounds;

      // Check to see if the rectangle is within the bounds of the screen.
      if ( screenRectangle.Contains( rectangle1 ) )
      {
         ControlPaint::DrawReversibleFrame( rectangle1, SystemColors::Highlight, FrameStyle::Thick );

         // Call the Offset method to move the rectangle.
         rectangle1.Offset( 20, 20 );

         // Draw the new, offset rectangle.
         ControlPaint::DrawReversibleFrame( rectangle1, SystemColors::Highlight, FrameStyle::Thick );
      }
   }

Rectangle rectangle1 = new Rectangle(70, 70, 100, 150);

private void DrawFirstRectangle()
{
    ControlPaint.DrawReversibleFrame(rectangle1, 
        SystemColors.Highlight, FrameStyle.Thick);
}

private void Button1_Click(object sender, EventArgs e)
{

    // Get the bounds of the screen.
    Rectangle screenRectangle = Screen.PrimaryScreen.Bounds;

    // Check to see if the rectangle is within the bounds of the screen.
    if (screenRectangle.Contains(rectangle1))

        // If so, erase the previous rectangle.
    {
        ControlPaint.DrawReversibleFrame(rectangle1, 
            SystemColors.Highlight, FrameStyle.Thick);

        // Call the Offset method to move the rectangle.
        rectangle1.Offset(20, 20);

        // Draw the new, offset rectangle.
        ControlPaint.DrawReversibleFrame(rectangle1, 
            SystemColors.Highlight, FrameStyle.Thick);
    }
}

Dim rectangle1 As New Rectangle(70, 70, 100, 150)

Private Sub DrawFirstRectangle()
    ControlPaint.DrawReversibleFrame(rectangle1, _
        SystemColors.Highlight, FrameStyle.Thick)
End Sub

Private Sub Button1_Click(ByVal sender As Object, _
    ByVal e As EventArgs) Handles Button1.Click

    ' Get the bounds of the screen.
    Dim screenRectangle As Rectangle = Screen.PrimaryScreen.Bounds

    ' Check to see if the rectangle is within the bounds of the screen.
    If (screenRectangle.Contains(rectangle1)) Then

        ' If so, erase the previous rectangle.
        ControlPaint.DrawReversibleFrame(rectangle1, _
            SystemColors.Highlight, FrameStyle.Thick)

        ' Call the Offset method to move the rectangle.
        rectangle1.Offset(20, 20)

        ' Draw the new, offset rectangle.
        ControlPaint.DrawReversibleFrame(rectangle1, _
            SystemColors.Highlight, FrameStyle.Thick)
    End If
End Sub

注解

必须规范化包含的矩形，此方法才能返回准确的结果。

Contains(Int32, Int32)

Source:

Rectangle.cs

确定指定的点是否包含在此 Rectangle 结构内。

public:
 bool Contains(int x, int y);

public readonly bool Contains (int x, int y);

member this.Contains : int * int -> bool

Public Function Contains (x As Integer, y As Integer) As Boolean

参数

x

Int32

要测试的点的 X 坐标。

y

Int32

要测试的点的 Y 坐标。

返回

Boolean

如果 x 和 y 定义的点包含在此 Rectangle 结构中，此方法将返回 true；否则将返回 false。

注解

必须规范化包含的矩形，此方法才能返回准确的结果。