#include <gtk/gtk.h>
#include "main-window.h"

int
main (int argc, char *argv[])
{
  GtkWidget *window;

  gtk_init(&argc, &argv);

  window = main_window_create();
  gtk_widget_show(window);

  gtk_main();

  return 0;
}

#include <gtk/gtk.h>
#include "main-window.h"

int
main (int argc, char *argv[])
{
  GtkWidget *window;

  gtk_init(&argc, &argv);

  window = main_window_create();
  gtk_widget_show_all(window);

  gtk_main();

  return 0;
}

Use gtk_widget_show_all instead of just show
Use gtk_widget_show_all instead of just show
