Re: Inputbox Question

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On Fri, 8 Jul 2005 13:07:54 -0400, "Al Reid"
<areidjr@xxxxxxxxxxxxxxxx> wrote:

<snip>

>In my case, I used WinDiff to compare the files AND went as far as running a disassembler and comparing the code visually. They are
>identical.
>
>In the case of a boolean compare (a = "")' vs. (a = vbNullString) they both compare a to "0".
>
>So as far as I can see, the compiler optimizes them both to the same machine code.

I did some tests on this a few months ago

The results were a bit spooky

An unititialized string - just Dimmed - is a vbNullString
set it to "" and it is different

Use VarPtr and StrPtr to check that

Personally I would suggest that one does not use vbNullString unless
one is acutely aware of what one is doing.


.

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