[Haskell-cafe] wxHaskell: convenience functions

[Mark Carter]

I'm experimenting with wxHaskell, and I've got something like:

main = run mainFrame

mainFrame = do -- main application frame
    ...
    cbEdit <- checkBox p1 [text := "Edit Mode",  on command ::=  
onCbEdit textlog]
    ...
  where
    ...

It would be useful to have some convenience function, let's say, 
isEditing, which works out whether cbEdit is checked, or not. That way, 
one could just pass this in as a parameter without requiring any extra 
code. The problem is, I can't see how it can be done. I've tried various 
things in the main section, and nothing worked. I tried putting the 
following defintion into the where clause:

    isEditing = do
        checkedp <- get cbEdit checked
        return checkedp

but the compiler complained that cbEdit is not in scope. I /could/ pass 
in cbEdit as a parameter to isEditing, but I'd rather not.


		
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