Rect.Inflate 方法

定义

命名空间:: System.Windows

程序集:: WindowsBase.dll

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创建一个矩形，该矩形由指定的量展开或收缩矩形。

重载

名称	说明
Inflate(Size)	使用指定 Size的所有方向展开矩形。
Inflate(Double, Double)	使用指定宽度和高度量在所有方向上展开或收缩矩形。
Inflate(Rect, Size)	返回从按指定方向展开指定 Size矩形的结果矩形的矩形。
Inflate(Rect, Double, Double)	创建一个矩形，该矩形由指定宽度和高度量以所有方向展开或缩小指定的矩形。

Inflate(Size)

使用指定 Size的所有方向展开矩形。

public:
 void Inflate(System::Windows::Size size);

public void Inflate(System.Windows.Size size);

member this.Inflate : System.Windows.Size -> unit

Public Sub Inflate (size As Size)

参数

size: Size

指定要展开矩形的量。结构Size Width的属性指定增加矩形Left和Right属性的数量。结构Size Height的属性指定增加矩形Top和Bottom属性的数量。

例外

InvalidOperationException

此方法在矩形上 Empty 调用。

示例

以下示例演示如何使用 Inflate(Size) 该方法来增加矩形的大小。

private Size inflateExample1()
{
    // 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);

    // Use the Inflate method to expand the rectangle by the specified Size in all
    // directions. The new size is 240,110. Note: Width of the resulting rectangle  
    // is increased by twice the Width of the specified Size structure because  
    // both the left and right sides of the rectangle are inflated. Likewise, the 
    // Height of the resulting rectangle is increased by twice the Height of the 
    // specified Size structure.
    myRectangle.Inflate(new Size(20,30));

    return myRectangle.Size;
}

注解

Width生成的矩形由指定Width结构的两倍Size增加，因为矩形的左右两侧都膨胀。同样，Height生成的矩形将增加指定Height结构的两倍Size。

另请参阅

Scale(Double, Double)

适用于

Inflate(Double, Double)

使用指定宽度和高度量在所有方向上展开或收缩矩形。

public:
 void Inflate(double width, double height);

public void Inflate(double width, double height);

member this.Inflate : double * double -> unit

Public Sub Inflate (width As Double, height As Double)

参数

width: Double

要扩展或缩小矩形左侧和右侧的量。

height: Double

要扩展或收缩矩形顶部和底部边的量。

例外

InvalidOperationException

此方法在矩形上 Empty 调用。

示例

以下示例演示如何使用 Inflate(Double, Double) 该方法更改矩形的大小。

private Size inflateExample2()
{
    // 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);

    // Use the Inflate method to expand or shrink the rectangle by the specified 
    // width and height amounts. The new size is 160,150 (width shrunk by 40 and  
    // height increased by 100). Note: Width of the resulting rectangle is increased 
    // or shrunk by twice the specified width, because both the left and right sides  
    // of the rectangle are inflated or shrunk. Likewise, the height of the resulting 
    // rectangle is increased or shrunk by twice the specified height.
    myRectangle.Inflate(-20,50);

    return myRectangle.Size;
}

注解

Width生成的矩形增加或减少两倍指定的宽度偏移量，因为它同时应用于矩形的左侧和右侧。同样， Height 生成的矩形将增加或减少指定高度的两倍。

如果指定的宽度或高度缩小矩形的当前宽度或高度大于其当前 Width Height 或 - 给矩形一个负区域 - 矩形将成为 Empty 矩形。

另请参阅

Scale(Double, Double)

适用于

Inflate(Rect, Size)

返回从按指定方向展开指定 Size矩形的结果矩形的矩形。

public:
 static System::Windows::Rect Inflate(System::Windows::Rect rect, System::Windows::Size size);

public static System.Windows.Rect Inflate(System.Windows.Rect rect, System.Windows.Size size);

static member Inflate : System.Windows.Rect * System.Windows.Size -> System.Windows.Rect

Public Shared Function Inflate (rect As Rect, size As Size) As Rect

参数

rect: Rect

要 Rect 修改的结构。

size: Size

指定要展开矩形的量。结构Size Width的属性指定增加矩形Left和Right属性的数量。结构Size Height的属性指定增加矩形Top和Bottom属性的数量。

Rect

生成的矩形。

例外

InvalidOperationException

rect 是一个 Empty 矩形。

示例

以下示例演示如何使用 Inflate(Rect, Size) 该方法更改矩形的大小。

private Size inflateExample3()
{
    // 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);

    // Use the static Inflate method to return an expanded version of myRectangle1.   
    // The size of myRectangle2 is 240,110. Note: Width of the resulting rectangle is increased 
    // by twice the Width of the specified Size structure, because both the left and right 
    // sides of the rectangle are inflated. Likewise, the Height of the resulting 
    // rectangle is increased by twice the Height of the specified Size structure.
    Rect myRectangle2 = Rect.Inflate(myRectangle, new Size(20, 30));

    return myRectangle2.Size;
}

注解

Width生成的矩形由指定Width结构的两倍Size增加，因为矩形的左右两侧都膨胀。同样，Height生成的矩形将增加指定Height结构的两倍Size。

另请参阅

Scale(Double, Double)

适用于

Inflate(Rect, Double, Double)

创建一个矩形，该矩形由指定宽度和高度量以所有方向展开或缩小指定的矩形。

public:
 static System::Windows::Rect Inflate(System::Windows::Rect rect, double width, double height);

public static System.Windows.Rect Inflate(System.Windows.Rect rect, double width, double height);

static member Inflate : System.Windows.Rect * double * double -> System.Windows.Rect

Public Shared Function Inflate (rect As Rect, width As Double, height As Double) As Rect

参数

rect: Rect

要 Rect 修改的结构。

width: Double

要扩展或缩小矩形左侧和右侧的量。

height: Double

要扩展或收缩矩形顶部和底部边的量。

Rect

生成的矩形。

例外

InvalidOperationException

rect 是一个 Empty 矩形。

示例

以下示例演示如何使用 Inflate(Rect, Double, Double) 该方法更改矩形的大小。

private Size inflateExample4()
{
    // 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);

    // Use the static Inflate method to return a version of myRectangle with a shrunk
    // width and expanded height. The size of myRectangle2 is 160,150. Note: Width of the resulting 
    // rectangle is increased or shrunk by twice the specified width, because both the
    // left and right sides of the rectangle are inflated or shrunk. Likewise, the height 
    // of the resulting rectangle is increased or shrunk by twice the specified height.
    Rect myRectangle2 = Rect.Inflate(myRectangle, -20, 50);

    return myRectangle2.Size;
}

注解

Width生成的矩形增加或减少两倍指定的宽度偏移量，因为它同时应用于矩形的左侧和右侧。同样， Height 生成的矩形将增加或减少指定高度的两倍。

如果指定的宽度或高度修饰符缩小矩形的当前 Width Height 或 - 给矩形一个负区域 - 此方法返回 Rect.Empty。

另请参阅

Scale(Double, Double)

适用于

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