[Glade-users] Separation between GUI and main

[mferrero at reer.it (Manuel Ferrero)]

I'm learning GTK+ and Glade on my win32 machine.

Right now I was able to write, compile and run a simple code with a 
window, an hbox and a toggle button in it.
When the user presses the button I display the state of the button via 
the callback function.

The main function is this:

---SNIP---
int main(int argc, char *argv[])
{
gtk_init(&argc, &argv);

GtkBuilder *builder_handler;
GtkWidget *window;
GtkWidget *connect_button;

builder_handler = gtk_builder_new();
gtk_builder_add_from_file(builder_handler, GUI_XML_FILENAME, NULL);

window = GTK_WIDGET(gtk_builder_get_object(builder_handler, "window"));
connect_button = GTK_WIDGET(gtk_builder_get_object(builder_handler, 
"connect_button"));

gtk_builder_connect_signals(builder_handler, NULL);
g_object_unref (G_OBJECT (builder_handler));

gtk_widget_show (connect_button);
gtk_widget_show (window);


gtk_main ();

return 0;
}   // main
---PINS---

I'll spare you the callbacks.

Now my question is this: with Glade I add another button (expanding the 
hbox of course) and I name it my_button_2.
The code has to know about this new button so at least I have to declare 
a new GtkWidget pointer, call the gtk_builder_get_object() to assing the 
pointer and then show it with a gtk_widget_show().
Leave alone the callbacks for all the signals.

I don't understand how this can separate the GUI from the code.
Am I missing something?
Is tehre some way to connect signals without knowing the objects? In 
this case I could only write the needed callbacks to manage the new button.

Please remember I'm really new to this programming style, I'm an 
embedded C programmer so I know nealry nothign about objects and events.

Thanks in advance.
-- 
Regards,
Manuel Ferrero
R&D department

Reer SpA        
Tel.  +39 011 2482215
Fax. +39 011 859867

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