Can I pass 'MyClass object' to a custom ActiveX control? 1

[joelwenzel]

I am creating an activeX control for graphing. I have completed the code to work without activeX and now I want to transfer it to activeX for easy implementation in other projects. Unfortunately, I cannot figure out a way to pass an object from a class I made to a public control method. I can only pass standard objects such as int, char, etc. Is this a limitation of activeX or is there something I am missing?

Thanks

 

[Cagliostro]

You can do that only if your class is a COM object as a COM interface inherited from IUnknown. Also you may do it if your ActiveX is inproc and knows how to work with your class, but not always. Another situation is passing by value. You can pass by vale, but also in this situation the ActiveX must know how to handle that information.

Ion Filipski

 

[joelwenzel]

thanks....I do not know anything about COM but is it generally avoided? Is activeX the standard? Should I try to 'make' my code work with activeX?

 

[Cagliostro]

Yes, you should do that. I'd say you should do all your objects that comunicate with ActiveX at IDL level.

Ion Filipski