what can we do about INVALID_FILE_SIZE?

const
INVALID_FILE_SIZE = DWORD($FFFFFFFF);

is the above correct? it would seem to be from what i can make out from
MSDN and the various C code files i've found it defined in...

i kind of have to laugh because on place i read spoke of examples
checking the result directly instead of using INVALID_FILE_SIZE and that
this was not good coding practice because m$ might change the value of
INVALID_FILE_SIZE at any time which would then break all of that code...
i makes sense to me O:)


what is the purpose/meaning of INVALID_FILE_SIZE on first instance, I may ask...

Cheers, A.

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