_MEMEXISTS - mkilgore/QB64pe GitHub Wiki

The _MEMEXISTS function returns true (-1) if the memory block variable name specified exists in memory and false (0) if it does not.

Syntax

result = _MEMEXISTS(memBlock)

Description

  • The memBlock variable name must have been created using DIM memBlock AS _MEM type (DIM.
  • The function verifies that the memory variable exists in memory before using a passed block, to avoid generating QB64 errors.
  • Typically, this function is used by a LIBRARY SUB or FUNCTION which accepts a _MEM structure as input, to avoid an error.
See Also:
Navigation:
Go to Keyword Reference - Alphabetical
Go to Keyword Reference - By usage
Go to Main WIKI Page
⚠️ **GitHub.com Fallback** ⚠️