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Rect.Union Method (Point)

Expands the current rectangle exactly enough to contain the specified point.

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

public void Union(
	Point point
)

Parameters

point
Type: System.Windows.Point

The point to include.

The following example shows how to use the Union(Point) method to expand the current rectangle exactly enough to contain a given Point.

private Rect unionExample1()
{
    // 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);

    // The Union method expands the current rectangle exactly enough to contain  
    // the specified point. myRectangle expands to a location of 0,0 and a size 
    // of 210,55.
    myRectangle.Union(new Point(0,0));

    // Returns 0,0,210,55 
    return myRectangle;

}

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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