Hello everybody,

I've tried to write with Freepascal a UDF for Firebird.

library udf_upper;

{$mode DELPHI}{$H+}
{$PACKRECORDS C}

uses
Classes
{ you can add units after this };


function UTF_UPPER(wert : PChar) : PChar; cdecl; export;
begin
wert1 := String(wert);
//Some String operations
result := PChar(wert1);
end;

exports
UTF_UPPER name 'UTF_UPPER';

begin

end.

I registered it in Firebird by using:

DECLARE EXTERNAL FUNCTION WIDEUPPER
CSTRING(32000)
RETURNS CSTRING(32000) FREE_IT
ENTRY_POINT 'UTF_UPPER' MODULE_NAME 'udf_upper';

Everything works ok, but when I try to use the function in a
SQL-Statement, it just says:

ISC ERROR CODE:335544343

ISC ERROR MESSAGE:
invalid request BLR at offset 63
function WIDEUPPER is not defined
module name or entrypoint could not be found

I absolutely don't know why...

Can somebody please help me?

Thank you very much

Klaus