[Boost-users] Boost Bind

Subject: [Boost-users] Boost Bind
From: Etienne Pretorius (icewolfhunter_at_[hidden])
Date: 2010-03-02 02:12:50

Hello List,

I am trying to use boost::signals with boost bind... but I always get 
this compiler error:

1>c:\program files\boost\boost_1_42\boost\bind\bind.hpp(69) : error 
C2825: 'F': must be a class or namespace when followed by '::'
1>        c:\program 
files\boost\boost_1_42\boost\bind\bind_template.hpp(15) : see reference 
to class template instantiation 'boost::_bi::result_traits<R,F>' being 
compiled
1>        with
1>        [
1>            R=boost::_bi::unspecified,
1>            F=__w64 long (__stdcall ticketman::Window::* 
)(UINT,WPARAM,LPARAM)
1>        ]

I am unable to make sence of it...

/*CODE*/

     /* boost::signal masqurading as a Window Procedure */
     static boost::signal<::LRESULT (::HWND,::UINT,::WPARAM,::LPARAM)> 
WindowProc;

     /* Window Procedure */
     ::LRESULT CALLBACK WndProc(
         ::HWND hWnd,
         ::UINT message,
         ::WPARAM wParam,
         ::LPARAM lParam
     ) {
         return WindowProc(hWnd, message, wParam, lParam);
     };

     class Window
         : public boost::noncopyable {
     public:
         /* Deconstructor */
         ~Window(
         ) {
             WindowProc.disconnect(m_Connection);
         };
     private:
         friend    ::LRESULT CALLBACK WndProc(::HWND, ::UINT, ::WPARAM, 
::LPARAM);
         virtual ::LRESULT CALLBACK WndProc(::UINT, ::WPARAM, ::LPARAM) = 0;
     protected:
         /* Constructor */
         Window(
             ::HINSTANCE hInstance
         ) : m_Window(NULL) {
             m_Connection = WindowProc.connect(
                 boost::bind(
&Window::WndProc, this, _1, _2, _3
                 )
             );
             m_Instance = hInstance;//Might need some work...
         };
         /* Varibles */
         static    ::HINSTANCE                    m_Instance;
                 ::HWND                        m_Window;
                 boost::signals::connection    m_Connection;

     };

I have tried enabling WIN_API for boost and also trying to turn the pure 
virtual method into a method... still no luck.

Thank you,

Etienne