GetPtrSize
GetPtrSize Obtain the size of a nonrelocatable memory block Ptr thePtr ; address of a nonrelocatable memory block returns the size of the block (a 32-bit value)
GetPtrSize returns the size, in bytes of a specified nonrelocatable memory block.
thePtr is the address of a nonrelocatable memory block; i.e., the value
obtained from a prior call to NewPtr. Returns: a 32-bit long; the current size of the memory block. This will always be less than 8MB (a 24-bit value).