Hallo himitsu,
verwende doch einfach den alternativen Aufruf von
Supports:
Delphi-Quellcode:
var
Intf : IOperatorInterface;
Compare : IOperatorInterfaceCompare;
begin
if Supports(Intf, IOperatorInterfaceCompare, Compare) then
Result := Compare.xyz
else
AbstractErrorProc;
end;
Gruß Hawkeye