wxruby users - Apr 2007 - who can give me an EvtHandler#connect example?

I read the api document online: http://wxruby.rubyforge.org/doc/evthandler.html
but still don''t know how to use it.

EvtHandler#connect

connect(Integer id,  Integer lastId,  EventType eventType,
        ObjectEventFunction function,
        Object userData = nil,
        EvtHandler eventSink = nil)

the online doc''s example is write in C++:

frame->Connect( ID_EXIT,
  EVT_COMMAND_MENU_SELECTED,
  CommandEventHandler(MyFrame::OnQuit) );

is it like this?:
frame.connect(Wx::ID_EXIT, Wx::EVT_COMMAND_MENU_SELECTED,frame.on_exit);

I need to attach event, but not in initialtion function.

thanks!
cy

yang cao wrote:
> I read the api document online:
http://wxruby.rubyforge.org/doc/evthandler.html
> but still don''t know how to use it.
>
> EvtHandler#connect
>   
wxRuby doesn''t currently support the #connect method for hooking up 
events. There''s an open feature request for it: 
https://rubyforge.org/tracker/index.php?func=detail&aid=609&group_id=35&atid=221

However, I don''t think it''s a problem for you as you can
already do what
you want; see below.
> is it like this?:
> frame.connect(Wx::ID_EXIT, Wx::EVT_COMMAND_MENU_SELECTED,frame.on_exit);
>   
No, this won''t work. In ruby, frame.on_exit calls the method, rather 
than being a reference to the method to be called later (as in Python or 
C++)
> I need to attach event, but not in initialtion function.
>   
You can do this by using the ordinary way

 evt_menu(Wx::ID_EXIT) { ... }

in wxRuby these can be used anywhere, not just in the initialize method. 
All of the evt_xxxx methods in ruby are implemented in C++ using 
EvtHandler#connect.

For example, I tried adding an event handler in the on_about method in 
the minimal sample, and it works correctly.

alex

2007/4/13, Alex Fenton <alex at pressure.to>:
> yang cao wrote:
> > I read the api document online:
http://wxruby.rubyforge.org/doc/evthandler.html
> > but still don''t know how to use it.
> >
> > EvtHandler#connect
> >
> wxRuby doesn''t currently support the #connect method for hooking
up
> events. There''s an open feature request for it:
>
https://rubyforge.org/tracker/index.php?func=detail&aid=609&group_id=35&atid=221
>
> However, I don''t think it''s a problem for you as you can
already do what
> you want; see below.
> > is it like this?:
> > frame.connect(Wx::ID_EXIT,
Wx::EVT_COMMAND_MENU_SELECTED,frame.on_exit);
> >
> No, this won''t work. In ruby, frame.on_exit calls the method,
rather
> than being a reference to the method to be called later (as in Python or
ye~, i see :)
> C++)
>
> > I need to attach event, but not in initialtion function.
> >
>
> You can do this by using the ordinary way
>
>  evt_menu(Wx::ID_EXIT) { ... }
>
> in wxRuby these can be used anywhere, not just in the initialize method.
> All of the evt_xxxx methods in ruby are implemented in C++ using
> EvtHandler#connect.
>
> For example, I tried adding an event handler in the on_about method in
> the minimal sample, and it works correctly.
how can evt_key_down methods pop up the key_down event?
like in a textctrl, user typed a ''c''.
i want the event handler process it like this:
from the ancestor to the descendant, not the opposite,
is there any way to do this?

thanks!
cy
>
> alex
>
>
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