#include <gtk/gtk.h>
#include <stdio.h>
int
main (int   argc,
      char *argv[])
{
  gtk_init (&argc, &argv);
  GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  GtkWidget *vpaned = gtk_vpaned_new ();
  gtk_container_add (GTK_CONTAINER (window), vpaned);
  gtk_widget_show (vpaned);
  GtkWidget *big_button = g_object_new (GTK_TYPE_BUTTON,
                                        "visible", TRUE,
                                        "width-request", 200,
                                        "height-request", 200,
                                        "label", "big buttton",
                                        NULL);
  gtk_paned_add2 (GTK_PANED(vpaned), big_button);
  GtkWidget* text = g_object_new (GTK_TYPE_LABEL,
                                  "visible", TRUE,
                                  "label", "substitute create_text();",
                                  NULL);
  gtk_paned_add1 (GTK_PANED(vpaned), text);

  gtk_widget_show (window);
  gtk_main();
  
  return 0;
}

// gcc -Wall -O2 `pkg-config --cflags --libs gtk+-2.0` x.c && ./a.out