## The `onResize' callback

Event number: 12
Generated for: Any visible object (usually windows)

The `onResize` callback is called when the user resizes a window, or when your program calls the `Resize` method. The event-specific parameters in ŒEV apply to a Window, Form, Dialog, or Document only and are (in index origin 1):

            ŒEV[6]        New width in pixel units
            ŒEV[7]        New height in pixel units

Note that this callback is not invoked if your program changes an object's size by setting the `size` or `where` property - you need to call the `Resize` method as well if you want the callback function to be run.

In older APL systems, this callback was frequently used to re-arrange the controls in a window to reflect the re-sizing. In APLX, you can often do this much more simply by specifying the `align` or `anchors` properties of the controls in the window.

Topic: APLX Help : System Classes : Callbacks : onResize

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