When you pass an object as a procedure parameter and you don't need to pass
back any changes to the calling function, do you need the 'var' in front of
the instance name in the procedure declaration?
I routinely write procedures that receive tables and other instances that I
want the changes passed back into the calling code (i.e. passed by reference
rather than value). But since having a problem in Delphi 2 passing a
TStringList as a value parameter into a procedure I have always routinely
written 'var' to make the compiler pass the instance as a reference even
though it isn't necessary to pass it back to the caller.
That doesn't seem to apply in Delphi 3 as instances pass as value parameters
fine (the compiler presumably still passes a reference rather than the
object itself, though)
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