Re: gtk question.

[<priolof tp-srl it>]

Thanks for your reply. I would like to emitt an event after have used the 
gtk method to create a window (the word I used before was FORM)
the method I use for is gtk_window_new() call from a wrapper.

/* Create new window */
C_EXTERN GtkWidget *CBL_OC_GTK_WINDOW_NEW()
{
   return gtk_window_new(GTK_WINDOW_TOPLEVEL);
}

Federico

----- Original Message ----- 
From: "David Nečas" <yeti physics muni cz>
To: <priolof tp-srl it>
Cc: <gtk-list gnome org>
Sent: Thursday, August 16, 2012 1:56 PM
Subject: Re: gtk question.


> On Thu, Aug 16, 2012 at 01:00:17PM +0200, priolof tp-srl it wrote:
> > Hi all this is Federico from Italy, I am working on two opensource
> > projects one is a debugger for Opencobol and another is a Gui for
> > opencobol.  Both projects  are on sourceforge and some documents are
> > also available at www.tp-srl.it (site of mine).
> >
> > This is the question. For the GuiCobol I must define some new events
> > for widgets (typically GTK-Windows). In particular I need to add one
> > that is emitted when the form is created (first time only).
>
> Can you be more specific what you mean by ‘created’?
>
> There are various things that can be considered creation, with
> corresponding signals, such as "realize" (see gtk_widget_realize() that
> corresponds to creation of widget's window if it has one) but they can
> occur repeatedly.
>
> Connecting something to creation of the object from the outside does not
> make much sense:
> // Here we do not have anything to connect to.
> GtkWidget *widget = gtk_window_new(...);
> // Here the object has already been created.
>
> If you want to run some code whenever an object of specific type is
> created, you can *subclass* it, i.e. create some MyWindow derived from
> GtkWindow and then run the code for example in the MyWindow instance
> init() method.
>
> Or, if the windows are created via some wrapper (don't know how GuiCobol
> works) then this wrapper can run whatever is necessary when creating
> them.
>
> Yeti