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Rect.Inflate Method (Rect, Double, Double)

Creates a rectangle that results from expanding or shrinking the specified rectangle by the specified width and height amounts, in all directions.

Namespace:  System.Windows
Assembly:  WindowsBase (in WindowsBase.dll)

public static Rect Inflate(
	Rect rect,
	double width,
	double height
)

Parameters

rect
Type: System.Windows.Rect
The Rect structure to modify.
width
Type: System.Double
The amount by which to expand or shrink the left and right sides of the rectangle.
height
Type: System.Double
The amount by which to expand or shrink the top and bottom sides of the rectangle.

Return Value

Type: System.Windows.Rect
The resulting rectangle.

ExceptionCondition
InvalidOperationException

rect is an Rect.Empty rectangle.

The Width of the resulting rectangle is increased or decreased by twice the specified width offset, because it is applied to both the left and right sides of the rectangle. Likewise, the Height of the resulting rectangle is increased or decreased by twice the specified height.

If the specified width or height modifiers shrink the rectangle by more than its current Width or Height—giving the rectangle a negative area—this method returns Rect.Empty.

The following example shows how to use the Inflate(Rect, Double, Double) method to change the size of a rectangle.


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;

}


.NET Framework

Supported in: 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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