Applies To:

Form

SubForm

Description

This event is generated by a Form or SubForm when the user attempts to change the State of a Form, by minimising it, maximising it, or restoring it from a minimised or maximised state. The event is reported before the window changes state. You may prevent the state change by disabling the event (action code ¯1) or by returning a 0 result from an attached callback function.

The event message reported as the result of ⎕DQ, or supplied as the right argument to your callback function, is a 3-element vector as follows:

[1]	Object	ref or character vector
[2]	Event	'StateChange' or 35
[3]	Window state	0 (about to be restored) 1 (about to be minimised) 2 (about to be maximised)