[Glade-users] Newbie Q

In the below code, glade has declared: GtkWidget *drawingarea1;

Because it says not to modify the file, how do i get access
to drawingarea1 to draw a line on it from another file?
Am i supposed to use lookup_widget() on "drawingarea1" ?


  * DO NOT EDIT THIS FILE - it is generated by Glade.

#  include <config.h>

#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <string.h>

#include <gdk/gdkkeysyms.h>
#include <gtk/gtk.h>

#include "callbacks.h"
#include "interface.h"
#include "support.h"

create_window1 (void)
   GtkWidget *window1;
   GtkWidget *fixed1;
   GtkWidget *drawingarea1;

   window1 = gtk_window_new (GTK_WINDOW_TOPLEVEL);
   gtk_object_set_data (GTK_OBJECT (window1), "window1", window1);
   gtk_window_set_title (GTK_WINDOW (window1), "window1");

   fixed1 = gtk_fixed_new ();
   gtk_widget_ref (fixed1);
   gtk_object_set_data_full (GTK_OBJECT (window1), "fixed1", fixed1,
                             (GtkDestroyNotify) gtk_widget_unref);
   gtk_widget_show (fixed1);
   gtk_container_add (GTK_CONTAINER (window1), fixed1);

   drawingarea1 = gtk_drawing_area_new ();
   gtk_widget_ref (drawingarea1);
   gtk_object_set_data_full (GTK_OBJECT (window1), "drawingarea1", drawingarea1,
                             (GtkDestroyNotify) gtk_widget_unref);
   gtk_widget_show (drawingarea1);
   gtk_fixed_put (GTK_FIXED (fixed1), drawingarea1, 0, 0);
   gtk_widget_set_uposition (drawingarea1, 0, 0);
   gtk_widget_set_usize (drawingarea1, 256, 256);

   button1 = gtk_button_new_with_label ("");
   gtk_widget_ref (button1);
   gtk_object_set_data_full (GTK_OBJECT (window1), "button1", button1,
                             (GtkDestroyNotify) gtk_widget_unref);

   return window1;

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