MEMEXISTS
From QB64 Wiki
The _MEMEXISTS function returns true (-1) if the memory block specified exists and false (0) if it doesn't.
- ret = _MEMEXISTS (memblock)
Details:
- The memblock should be a _MEM type (DIM memblock AS _MEM).
- A function can check to see if memory exists before using a passed block to avoid generating generic QB64 errors.
See Also: