[GD-Windows] Function to see if a pointer is on the stack

[Jacob T. \(C. D. Ltd\) <Ja...@Co...>]

Is there some simple and reliable code for a console or windows app to =
test if a pointer value is on the stack or not ?

If the pointer is on the stack (e.g. a string) then we want to copy the =
string to heap memory for reuse later on.

Cheers

Jake