Rect.Contains 方法

  • 參考

定義

命名空間:
System.Windows
組件:
WindowsBase.dll

表示矩形是否包含指定的點或矩形。

多載

Contains(Point)

表示矩形是否包含指定的點。
Contains(Rect)

表示矩形是否包含指定的矩形。
Contains(Double, Double)

表示矩形是否包含指定的 X 座標和 Y 座標。

Contains(Point)

表示矩形是否包含指定的點。

public:
 bool Contains(System::Windows::Point point);
public bool Contains (System.Windows.Point point);
member this.Contains : System.Windows.Point -> bool
Public Function Contains (point As Point) As Boolean

參數

point
Point

要檢查的點。

傳回

Boolean

如果矩形包含指定的點，則為 true，否則為 false。

範例

下列範例示範如何使用 Contains(Point) 方法來判斷矩形是否包含指定的 Point 。

private bool rectContainsExample1()
{
    // Initialize new rectangle.
    Rect myRectangle = new Rect();

    // The Location property specifies the coordinates of the upper left-hand 
    // corner of the rectangle. 
    myRectangle.Location = new Point(10, 5);

    // Set the Size property of the rectangle with a width of 200
    // and a height of 50.
    myRectangle.Size = new Size(200, 50);

    // Using the Contains method, see if the rectangle contains the specified
    // point. doesContain is true because the point is inside of myRectangle.
    bool doesContain = myRectangle.Contains(new Point(13, 30));

    return doesContain;
}

適用於

Contains(Rect)

表示矩形是否包含指定的矩形。

public:
 bool Contains(System::Windows::Rect rect);
public bool Contains (System.Windows.Rect rect);
member this.Contains : System.Windows.Rect -> bool
Public Function Contains (rect As Rect) As Boolean

參數

rect
Rect

要檢查的矩形。

傳回

Boolean

如果矩形整個包含 rect 則為 true，否則為 false。

範例

下列範例示範如何使用 Contains(Rect) 方法來判斷某個矩形是否由另一個矩形包含。

private bool rectContainsExample2()
{
    // Create a rectangle.
    Rect myRectangle1 = new Rect();

    // The Location property specifies the coordinates of the upper left-hand 
    // corner of the rectangle. 
    myRectangle1.Location = new Point(10, 5);

    // Set the Size property of the rectangle with a width of 200
    // and a height of 50.
    myRectangle1.Size = new Size(200, 50);

    // Create second rectangle.
    Rect myRectangle2 = new Rect();
    myRectangle2.Location = new Point(12, 12);
    myRectangle2.Size = new Size(10, 60);

    // Using the Contains method, see if the second rectangle is 
    // contained within the first rectangle. doesContain is false
    // because only part of myRectangle2 is contained in myRectangle1 
    // (myRectangle2 is too wide).
    bool doesContain = myRectangle1.Contains(myRectangle2);

    return doesContain;
}

適用於

Contains(Double, Double)

表示矩形是否包含指定的 X 座標和 Y 座標。

public:
 bool Contains(double x, double y);
public bool Contains (double x, double y);
member this.Contains : double * double -> bool
Public Function Contains (x As Double, y As Double) As Boolean

參數

x
Double

要檢查之點的 X 座標。

y
Double

要檢查之點的 Y 座標。

傳回

Boolean

如果矩形包含 (x, y) 則為 true，否則為 false。

範例

下列範例示範如何使用 Contains(Double, Double) 方法來判斷矩形是否包含指定 x 座標和 y 座標所指定的點。

private bool rectContainsExample3()
{
    // Initialize new rectangle.
    Rect myRectangle = new Rect();

    // The Location property specifies the coordinates of the upper left-hand 
    // corner of the rectangle. 
    myRectangle.Location = new Point(10, 5);

    // Set the Size property of the rectangle with a width of 200
    // and a height of 50.
    myRectangle.Size = new Size(200, 50);

    // Using the Contains method, see if the rectangle contains the specified
    // point specified by the given X and Y coordinates. doesContain is false 
    // because the X and Y coordinates specify a point outside of myRectangle.
    bool doesContain = myRectangle.Contains(4, 13);

    return doesContain;
}

適用於