Re: [gtk-list] Re: announce: yet another gtk+ C++ wrapper (no caps as Owen suggest)

[Tero Pulkkinen <terop students cc tut fi>]

Mario Motta <mmotta@guest.net> writes:
> // Assuming that A is a class into widget hierarchy:
> //. A constructor
> A::A() { 
> widget = gtk_some_widget_new(); 
> SignalConnect("a_signal",this,widget,&A::MyAnswer);

which connect() is this? :) Are you meaning gtk_signal_connect(),
Gtk_Object::signal_connect() or connect_to_method()?
(connect_to_method is the only one people should ever use. The others
are implementation details you should not use. (guess they should be
properly hidden and documented as impelementation details...)

> // assume this = 1000 for instance
> // and widget =  2000 for instance
> }
> //...
> and now the class A response method
> void A::MyAnswer(A* sender)
> {
> printf("\n this:%p, sender:%p", this,sender)
> fflush(stdout);
> // output will be: this:2000, sender: 1000

You will never get this result with connect_to_method call you should
be using. 

> // gtk+ calls MyAnswer putting (as was easy  to foresee) widget as first hidden
> //arg thus replacing this with his own widget. 

??

-- 
-- Tero Pulkkinen -- terop@modeemi.cs.tut.fi --