> you dont have to wait for my example as i said checkSession is already the 
> example 
> 
> checkSession
>       session == Smalltalk session ifFalse: [ 
>               "just reset the surface"
>               surface := nil.
>               session := Smalltalk session.
>       ]
> 
> as you can see here essentially we compare session if they differ then we 
> know we need to reinitialize all our external resources in this example 
> surface . Not that it assigns surfaces as nil but you will need to fully 
> reinitialize the surface cause otherwise you will have a non existent surface 
> still. In this class a nill surface is reinitialized by another method. 
> 
> Also I like to note here that Roassal Easel appear also not to check sessions 
> and exhibits the known problem if image is stored with Easel open. Its 
> something Roassal people would need to look at.  

Yes I do not understand why this is not already in Roassal.

Stef



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