Point.Offset(Double, Double) Method

Definition

Namespace:

System.Windows

Assembly:

WindowsBase.dll

Offsets a point's X and Y coordinates by the specified amounts.

public:
 void Offset(double offsetX, double offsetY);

public void Offset (double offsetX, double offsetY);

member this.Offset : double * double -> unit

Public Sub Offset (offsetX As Double, offsetY As Double)

Parameters

offsetX

Double

The amount to offset the point's X coordinate.

offsetY

Double

The amount to offset the point's Y coordinate.

Examples

The following example shows how to offset the X and Y values of a Point structure.

private Point offsetExample()
{
    
    Point pointResult = new Point(10, 5);

    // Offset Point X value by 20 and Y value by 30.
    // pointResult is now equal to (30,35)
    pointResult.Offset(20, 30);

    return pointResult;
}

Remarks

This operation is equivalent to adding a Point to a Vector.

Note that calling the Offset method will only have an effect if you can change the X and Y properties directly. Because Point is a value type, if you reference a Point object by using a property or indexer, you get a copy of the object, not a reference to the object. If you attempt to change X or Y on a property or indexer reference, a compiler error occurs. Similarly, calling Offset on the property or indexer will not change the underlying object. If you want to change the value of a Point that is referenced as a property or indexer, create a new Point, modify its fields, and then assign the Point back to the property or indexer.