Arguments

string  (string) the string to return the indexed character value
index  (integer)  the index for the character; 0 is the index of the first character

Return

(integer) the integer value for the specified character

Example

(vl-string-elt " abc" 0)  32
(vl-string-elt "abc" 2)  99

Remarks

if index is outside the string length, an error is triggered;

in BricsCAD, each character in a string is represented by its Unicode value; therefore, forward and backward conversion between visual representation (the character) and its numerical representation (the Unicode value) is always constant across all platforms and versions, local code pages have no impact;
additionally, there is always a 1-to-1 relation (length of a string is identical to number of characters, and number of Unicode values);
this is different from AutoCAD AutoLISP, where all these conditions are not ensured, and therefore the backward + forward conversion is rather useless, and also depends on local code pages;

see (vl-list->string) function