[gtkmm] Connecting signals to class methods

[Rus Hughes <rus carpathia force9 co uk>]

Sorry for posting twice, but I screwed up the Subject line and feared
this post would get overlooked :/

hi, im having trouble with connecting signals with an app im writing and
would appreciate any help. In the following code I have an Engine class
which starts an instance of my playlist class. Id like the signals in
the playlist class to call methods in my Engine class. I am calling the
handler method after the engine is constructed which is where i intend
to connect the signals. The remmed out line works, but it only connects
to a function, whenever I try to connect to one of Engine's methods, I
get the following error :

/usr/include/sigc++-1.2/sigc++/object_slot.h: In method
`SigC::ObjectSlotNode::ObjectSlotNode<Engine, void (Engine::*)()>(void
(*)(void *), Engine *, void *, void (Engine::*)())':
/usr/include/sigc++-1.2/sigc++/object_slot.h:65:   instantiated from
`SigC::slot<void, Engine, Engine>(Engine &, void (Engine::*)())'
engine.cc:21:   instantiated from here
/usr/include/sigc++-1.2/sigc++/object_slot.h:35: no matching function
for call to `SigC::ObjectSlotNode::init (Engine *&, void *&, void
(SigC::Object::* &)())'
/usr/include/sigc++-1.2/sigc++/object_slot.h:36: candidates are: void
SigC::ObjectSlotNode::init(SigC::Object *, void *, void
(SigC::Object::*)())

Please could someone help me overcome it so I can connect to methods in
the Engine class?

Thanks in advance

Rus


#include <iostream>
#include "engine.hh"

void test() {
        cout << "open";
        exit(1);
}

Engine::Engine() {
  gorecki=new class Gorecki();
  playlist=new class Playlist();        
}

void Engine::open() {
  cout << "open";
}

void Engine::handlers() {
 //playlist->button5->signal_clicked().connect( SigC::slot(&test) );
 playlist->button5->signal_clicked().connect(    
SigC::slot(*static_cast<class Engine*>(this), &Engine::open) );
}
-- 
Rus Hughes <rus carpathia force9 co uk>