Re: Callbacks and widgets

[Stefan Kost <ensonic hora-obscura de>]

Hi Gonzalo,

I don't do that for *every* widget, just for logical groups.
In my GUI application I do this for the window, the toolbar, the statusbar, the 
content area (a notebook) and for each content page. Likewise I subclass dialogs.

Stefan

Gonzalo Aguilar Delgado wrote:
> Hi, stefan.
>
> This looks also good but it's a pain to have to instanciate every
> widget. But for some special widgets may be a great solution...
>
> Thank you for your reply.
>
>
>
> > hi,
> > Gonzalo Aguilar Delgado wrote:
> >
> > > Yep, I know about some of them:
> > >
> > >         1.- Passing a data structure
> > >         2.- Using global variables (not good threading support)
> > >         3.- Passing window to gpointer and searching.
> >
> >         4.- Use GObjects for you UI
> >
> > In my apps I don't directly insert e.g. a gtk_hbox, but derive a class from it 
> > (e.g. MyOptionGroup) and this class has aditional datafields. The callback gets 
> > the pointer to the instance of the MyOptionGroup as user_data.
> >
> > Stefan
> >
> >
> > > But the point is. 
> > >
> > > What is the best way? Is there any other way to do that? Because
> > > structure option looks more suitable for different data to be passed not
> > > just widgets...
> > >
> > > I tried to set the widgets as user-data of the widget to be triggered.
> > > But it seems not to work.
> > >
> > > I will look anyway in the older mailing list.
> > >
> > > Thank you.
> > >
> > >
> > >
> > >
> > > > On Tue, Mar 28, 2006 at 09:38:20AM +0200, Gonzalo Aguilar Delgado wrote:
> > > >
> > > >
> > > > > Because receiver callback is getting only the receiver widget,
> > > >
> > > > In addition, the callback gets an arbitrary pointer passed
> > > > as user_data to g_signal_connect().  A pointer can be used
> > > > to pass anything.
> > > >
> > > > This is a very frequently asked question, search the
> > > > archives for discussion...
> > > >
> > > > Yeti
> > > >
> > > >
> > > > --
> > > > That's enough.
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