Problem with Events, WindowEvents, managed C++

Question

Hello,

Working on a VisStudio 2008 addin, using managed C++ (C++/CLR in the New Project wizard).

In the OnConnection() function, I want to add a handler to the WindowEvents collection.

When I do this:
// Hook up events
EnvDTE::Events ^ events = _applicationObject->Events;
EnvDTE::WindowEvents ^winEvents = events->WindowEvents();

I get an error message:
error C2660: 'EnvDTE::Events::WindowEvents::get' : function does not take 0 arguments

In the Object Browser I find this:
public EnvDTE.WindowEvents WindowEvents(EnvDTE.Window WindowFilter = null) { get; }

Thanks for any hints about what I'm doing wrong...

Answer 1

Hello,

Actually, property WindowEvents has no default parameter, not sure why it shows on Object Browser, this is the documentation on MSDN: Events.WindowEvents Property.
Please pass 'null' to use it.

Sincerely,
Wesley

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Answer 2

Thanks for the reply.

Doesn't the Object Browser get its information from metadata in the assembly?  It seems to be consistent with the doc you linked to:

Parameters
WindowFilter
Type: EnvDTE.Window
Optional. If supplied, window events occur only for the specified Window. 

Reflector reports the same:  parameter is optional, default is null.

Anyway, trying to pass a parameter:

EnvDTE::WindowEvents ^we = events->WindowEvents(0);

1>Compiling...

1>Connect.cpp

1>.\Connect.cpp(27) : error C2660: 'EnvDTE::Events::WindowEvents::get' : function does not take 0 arguments

EnvDTE::WindowEvents ^we = events->WindowEvents(nullptr);

1>Compiling...

1>Connect.cpp

1>.\Connect.cpp(27) : error C2660: 'EnvDTE::Events::WindowEvents::get' : function does not take 0 arguments

Is there a possible compiler setting problem?

Answer 3

Solution:

_winEvents = events->WindowEvents[nullptr];

(Note square brackets.)