* If variablename is not defined before VARPTR or [[VARSEG]] is called, the variable is created and it's address is returned.
* Reference index is used to set the offset address of an array index, not necessarily the lowest index.
* When a string variable, VARPTR returns the offset address location of the first byte of the string.
* Because many Qbasic statements change the locations of variables in memory, use the values returned by VARPTR and VARSEG immediately after the functions are used!
* Integer array sizes are limited to 32767 elements when using [[VARPTR]] in QB and '''QB64'''!. Create a larger array using [[_BYTE]]. Example: [[DIM]] [[SHARED]] Memory (65535) AS [[_UNSIGNED]] [[_BYTE]]
* '''Warning: DEF SEG, VARSEG , VARPTR, PEEK or POKE access QB64's emulated 16 bit conventional memory block!'''
: '''It is highly recommended that QB64's [[_MEM]] memory system be used to avoid running out of memory.'''