Article #19401: Implementing the IConnecitonPoint Interface with Builder

 Question and Answer Database
FAQ4401C.txt :Implementing the IConnecitonPoint Interface with Builder
Category :ActiveX
Platform :All-32Bit
Product :C++Builder3.x, C++Builder4.x,
Question:
I don't understand well how C++ Builder 4 implements the
IConnectionPoint interface.
When I check "generate event support" in the ActiveX wizard
section (i.e.when I start creating interface named "Test" )
I obtain a new dispatch interface named "ITestEvents". In
the generated code I've a class wrapper too, named
"TEvents_Test" that fires any methods I add to ITestEvents.
The CoTest creator class implements ONLY ITest interface.
It seems that CoTest class (ITest interface) does contains
any reference to TEvents_Test class (ITestEvents interface).
So, what about ITestEvents? When I create an instance of
CoTest (client), how can manage events?
Answer:
When you import the type library into your client, there should be a
class named TEvents_Test that you can instantiate and which implements
a ConnectionPoint interface.
The class is templatized, and there isn't an explicit typedef, so you'll
need to do something like typedef TEvents_Test MyEventsWrapper.
2/24/1999 2:02:57 PM

Last Modified: 01-SEP-99