Hi! There

is there any way to add an event, or a listener, or a hook to an already created object?

to be more specific, let's say you have this custom class

define class myClass as custom
     nTest = 0
enddefine

i don't have access to the source code of the class and i need a program fires when the ntest changes or is accessed.

I know there is this access and assign stuff, but once again, don't have access to code.

so, is there any way to add this to the object alredy created?