Using variants you can transparently "walk" along the exposed objects. The variant contains the Idispatch of the object and gets the exposed methods at runtime. Properties are implemented as get and put methods or just get methods for read only properties.
If you have something like Itransducers = interface .. property transducer[Index:integer]:Itransducer; end; Then you would do transducer := transducers.transducer[index]; transducer := transducers[index]; works only if transducer is the default property for Itransducers. I'm not sure if fpc supports this. Ludo -----Message d'origine----- De : fpc-pascal-boun...@lists.freepascal.org [mailto:fpc-pascal-boun...@lists.freepascal.org] De la part de Roberto Padovani Envoyé : mercredi 25 mai 2011 19:34 À : FPC-Pascal users discussions Objet : Re: RE : RE : RE : RE : RE : [fpc-pascal] support for using an activex 2011/5/25 Ludo Brands <ludo.bra...@free.fr>: > The code in article > http://www.informit.com/articles/article.aspx?p=130494&seqNum=5 goes a > long way in doing what you want to do. Unit Eventsink does pretty much > of the legwork. You should remove the procedure register since that is > the Delphi way to get a component on the toolbar. Remove also the > {$IFDEF VER100} and {$ENDIF}. The unit actually includes the code for > InterfaceConnect!! found that! great! > As for the tlb conversion, in your case > > IEventIntfEvents = dispinterface > ['{168F5642-5751-49F5-9AA4-B8A7A5F6A5B8}'] > end; > > should do (that is for the events part). AFAIK the procedure and > dispid definitions are only needed for the server. You are only > concerned with dispid's. No need to create prototypes for > OnCommChanged() etc. EventSink1Invoke would be a simple case DispID of > 1: // do CommChanged > 2: // do StatesChanged > ... > end; > > Now I am "wasting" time making the tlb pascal definitions. For the event part I'm fine with the dispid's Until now I was calling the activex method with variants, in and out, but now I discovered that this IDevice class has a property like: property Sensors: ISensors; which inside is a list of items like Sensor: ISensor. Can I read the sensores with a variant? Then, to see the fields inside each sensor, I think a I need a class to do that... The activex has all of these classes with the suitable dispinterfaces and uuids and so on. But if I define var device, transducers, transducer : variant; and create device := CreateOleObject('Device'); then, can i simply write the following ? transducers := device.Transducers; transducer := transducers[index]; It's a long path until I get this stuff working... R# _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal _______________________________________________ fpc-pascal maillist - fpc-pascal@lists.freepascal.org http://lists.freepascal.org/mailman/listinfo/fpc-pascal
