dear all,

i make udf project1.dll in lazarus. this udf have function of LeftString.

function LeftString(s: PChar; n: Integer):PChar;stdcall;
begin
Result:=PChar(LeftStr(s,n));
end;

but, I find mistake of moment run it in firebird, with this message:
Statement Failed, SQLCODE = -104
invalid request BLR at offset 63

is there any which can assist me.


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