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Yes, that's exactly it. That's why you always need to check whether the parm
was passed *before* you check its value.

On Wed, Jan 27, 2010 at 9:31 AM, <Rick.Chevalier@xxxxxxxxxxxxxxx> wrote:

The code works fine. What I don't understand is why ForceRead has a value.
When I run in debug I would expect the evaluation of the ForceRead
parameter to not be addressable because it wasn't passed. Instead it
contains the value from an earlier call that did pass the parameter. Is it
that once the parameter is passed the procedure retains that address in
memory and therefore the value of that parameter?


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