DataHub Scripting : Version 6.4
	Methods and Functions from Application.g

`OnChange`

OnChange — attaches an event handler to a point change event.

Syntax

OnChange (sym, fn)

Arguments

sym: Any Gamma symbol.
fn: A function or method call.

Returns

A list containing the sym and fn.

Description

This method is a wrapper for the on_change function. In addition to applying that function, it adds this change to the class's _ChangeFunctions list. For more information, please refer to Section 5.3, “Handling Events”.


droptimer		RemoveAllChanges