>I am pretty much sure that what I am asking is not possible. But I will ask anyway, just in case.
>
>When I scan (with FOR) though the Stack array (ASTACKINFO), can I get the state of an alias at each point? That is, say, I want to see if an alias cAlias was open or close at each FOR?
>

>ASTACKINFO(aProgStack)
>FOR iEle = 1 TO ALEN( aProgStack, 1 )
>        ?? select(cAlias) > 0
>NEXT
>

What you're asking for is history. Unless explicitly saved, it isn't available; subsequent calls could close or open a given alias ad infinitum.

You could manually log the state of the alias immediately before each subsequent call, or you could wrap your calls in a function which does that logging.

One way would be to declare a local variable and set its value immediately prior to your next call:

LOCAL llIsAliasOpen
llIsAliasOpen = SELECT( cAlias ) > 0

MyNextMethodFunctionOrProcedureCall()

Then, in your error handler you can LIST MEMORY. It will show a bunch of llIsAliasOpen memvars, one at each call level, with its value at that level.