#include <gtk/gtk.h>

int main(int argc, char *argv[]) {
  int i, j;
  GtkWidget *window, *vbox, *hbox, *button;

  gtk_init(&argc, &argv);

  window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
  gtk_window_set_title(GTK_WINDOW(window), "Button Example");

  hbox = gtk_hbox_new(TRUE, 5);
  gtk_container_add(GTK_CONTAINER(window), hbox);
  gtk_widget_show(hbox);

  for (i=0; i<7; i++) {
    vbox = gtk_vbox_new(TRUE, 5);
    gtk_container_add(GTK_CONTAINER(hbox), vbox);
    gtk_widget_show(vbox);
    for (j=0; j<11; j++) {
      button = gtk_button_new_with_label("Button");
      gtk_container_add(GTK_CONTAINER(vbox), button);
      gtk_widget_show(button);
    }
  }

  gtk_widget_show(window);

  gtk_main();

  return 0;
}