Re: Problem with threads

There is now an other possibility in cvs:

you can add 

ObjectDeleted = new ObjectDeletedHandler(MyCppObjectDoesntLiveAnymore);

to your ctor...
		
public void MyCppObjectDoesntLiveAnymore()
{
	Console.WriteLine("Oh, it's gone...");
}

Regards
Alexander Olk

Am Samstag, den 30.04.2005, 16:46 +0200 schrieb Alexander Olk:
> Am Samstag, den 30.04.2005, 15:26 +0200 schrieb Radek Podgorny:
> > Thanks but this wouldn't solve my problem. I don't want to touch c++.
> > 
> > As far as I understand it correctly, the problem is that all the child windows 
> > (pointers to them) are stored in the c++ part of wxnet. When I call the 
> > wx.Frame C# destructor, it calls the underlaying c++ destructor which takes 
> > all the children and destroys them (in c++). So, when I overload the 
> > wx.Button destructor (or Dispose or whatever) which is wx.Frame's child in C# 
> > it's pretty useless because it's never called, right?
> > 
> > How do we solve this? If it's really like this the entire wx-net wrapper is 
> > useless :-(
> 
> If you look at the c++ wrapper for wxButton you'll find
> DECLARE_OBJECTDELETED(_Button) in class _Button.
> 
> What does DECLARE_OBJECTDELETED do ?
> 
> DECLARE_OBJECTDELETED is a macro that implements the following code:
> 
> #define DECLARE_OBJECTDELETED(name) \
>     virtual ~name() \
>     { \
>         FunctionEvent e(wxEVT_OBJECTDELETED); \
>         ProcessEvent(e); \
>     }
> 
> If the button dtor gets called (c++) a "object deleted" event will be generated.
> You can catch this event with 
> 
> // add the next line to your Button class ctor
> AddEventListener(Event.wxEVT_OBJECTDELETED, new EventListener(OnObjectDeleted));
> 
> public void OnObjectDeleted(object sender, Event evt)
> {
> 	// stop a thread, do someting else here, 
> 	// change the value of a thread_is_running variable,
> 	// turn on the coffee machine,
> 	// or whatever you want...
> }
> 
> Hope that helps.
> 
> Regards
> Alexander Olk
> 
> 
> 
> 
> 
> 
> 
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