bas7qck.hlp (Table of Contents; Topic list)
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StringLength Routine
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length = StringLength(string-descriptor%);
 
    ■ The preceding syntax is for the C language. For more information,
      see Details.
 
    ■ string-descriptor%   The near address of a string descriptor within
                           a non-BASIC routine.
 
Returns
    The number of characters in the variable-length string defined by
    string-descriptor%.
 
See Also    ◄StringAssign►   ◄StringRelease►   ◄StringAddress►    ◄LEN►