a closed stack vs an invisible stack

[Doug Lerner]

On 1/13/04 2:11 PM, "Richard Gaskin" <ambassador at fourthworld.com> wrote:

> Doug Lerner wrote:
> 
>> I notice that even if a stack is closed, I can obtain custom properties from
>> it, such as:
>> 
>> put the loginName of stack "loginForm"
>> 
>> I thought that the stack had to be "open but invisible" to access
>> information about the stack.
> 
> Not needed:  you can access data in any stack file without opening it.  The
> stack file will be read into memory in order to access it, but will not be
> officially opened.

So what is the purpose of having the ability to have invisible open stacks?

doug