>>Hello folks,
>>
>>I have a form called hugform (the name is "hugform" and the scx is "hugform.scx"), which can behave in various ways depending on the setting of a global variable. How can I tell whether an instance of this form is already open when a menu item is selected, so that I can ensure the existing instance is released?
>>
>>This doesn't work:
>>
>>

>>IF VARTYPE(HUGForm) <> "O"	&& ie object HUGform  exists
>>        RELEASE hugform         && close current instance
>>	DO FORM hugform.scx     && reopen new instance
>>ELSE
>>	DO FORM hugform.scx
>>endif
>>

>>
>>vartype(hugform) never seems to be able to "see" hugform.
>
>well. make a class from your form (Save as class in menu when you have the scx opened in editor). and then instantiate your form like"
>

>if type(goHugForm)=[O] and !isnull(goHugform)
>   goHugform.release()
>   gohugform=.null.
>endif
>gohugform=createobject([hugformclassname])
>gohugform.show()
>

>
>and of course, you have to declare public variable gohugform otherwise your form will be closed as soon as variable will
>go out of scope.

With this, AINSTANCE() is varname independent, and support array instances,
but the support of the dataenvironment is lost.

FOR k=1 to AINSTANCE(ai,[hugformclassname])
   RELEASE (ai[k])
ENDFOR
somevarORarray=createobject([hugformclassname])
somevarORarray.show()