#include <gtk/gtk.h>

static void destroy (GtkWidget*, gpointer);

int main (int argc, 
          char *argv[])
{
  GtkWidget *window, *spin_int, *spin_float, *vbox;
  GtkAdjustment *integer, *float_pt;

  gtk_init (&argc, &argv);

  window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
  gtk_window_set_title (GTK_WINDOW (window), "Spin Buttons");
  gtk_container_set_border_width (GTK_CONTAINER (window), 10);
  gtk_widget_set_size_request (window, 150, 100);

  g_signal_connect (G_OBJECT (window), "destroy",
                    G_CALLBACK (destroy), NULL);

  /* Create two new adjustments. The first spans between 0 and 10, starting at 5 and
   * moves in increments of 1. The second spans between 0 and 1, starting at 0.5 and
   * moves in increments of 0.1. */
  integer = GTK_ADJUSTMENT (gtk_adjustment_new (5.0, 0.0, 10.0, 1.0, 2.0, 2.0));
  float_pt = GTK_ADJUSTMENT (gtk_adjustment_new (0.5, 0.0, 1.0, 0.1, 0.5, 0.5));

  /* Create two new spin buttons. The first will display no decimal places and the
   * second will display one decimal place. */
  spin_int = gtk_spin_button_new (integer, 1.0, 0);
  spin_float = gtk_spin_button_new (float_pt, 0.1, 1);

  vbox = gtk_vbox_new (FALSE, 5);
  gtk_box_pack_start_defaults (GTK_BOX (vbox), spin_int);
  gtk_box_pack_start_defaults (GTK_BOX (vbox), spin_float);

  gtk_container_add (GTK_CONTAINER (window), vbox);
  gtk_widget_show_all (window);

  gtk_main ();
  return 0;
}

static void
destroy (GtkWidget *window,
         gpointer data)
{
  gtk_main_quit ();
}