Re: [gtkmm] lookup_widget in glademm

[Christof Petig <christof petig-baender de>]

Igor Gorbounov wrote:
> Silviu D Minut wrote:
>
> > In building GUIs with glade in C there was this lookup_widget() function
> > that did the obvious, defined in support.c. In glade-2 with glade-- there
> > is a window1_glade.hh which defines the main window of the application
> > (derived from Window). All the widgets contained in the main window
> > are pointers - only defined locally in the constructor, hence not visible
> > outside the constructor (e.g. in a callback). Is there a loolup_widget()
> > analog for glade-- ?
> >  
> You should declare widgets as "public" in glade, then they will be
> accessible by name without lookup_widget(). You can add new
> (your own) methods and properties using produced by glade
> classes as base classes and changing them by inheritance.

Right. Very good explanation.

Since this is far more flexible, far more secure and far more 
transparent I dropped support for the GMM_* macros and the lookup_widget 
function which were present in previous versions.

Try this if you really need global variables (seldom):

class Win;

extern Win *winptr;

class Win : public Win_glade
{public:
	Win() { winptr=this; }
	~Win() { winptr=0; }
};


anywhere else:

   winptr->a_public_widget->show();

- or modify main() to store the pointer in a global variable.
Of course any contained widget marked as public is accessible by other 
methods/functions then (see above)

   Christof