#include <gtk/gtk.h>

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

	gtk_init(&argc, &argv);

	window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
	g_signal_connect(G_OBJECT(window), "delete_event",
		G_CALLBACK(gtk_main_quit), NULL);
	g_signal_connect(G_OBJECT(window), "destroy",
		G_CALLBACK(gtk_main_quit), NULL);
	gtk_window_set_title(GTK_WINDOW(window), "Adjustments");
	gtk_container_set_border_width(GTK_CONTAINER(window), 10);
	gtk_widget_set_size_request(window, -1, 200);

	scrollbar =
		gtk_vscrollbar_new(NULL);
	viewport = gtk_viewport_new(NULL, gtk_range_get_adjustment(GTK_RANGE(scrollbar)));
	gtk_widget_show(viewport);
	gtk_widget_show(scrollbar);

	vbox = gtk_vbox_new(FALSE, 5);
	gtk_widget_show(vbox);

	hbox = gtk_hbox_new(FALSE, 0);
	gtk_widget_show(hbox);

	for (i = 0; i < 50; i++) {
		gchar name[20];
		g_sprintf(name, "Button %d", i);
		button = gtk_button_new_with_label(name);
		gtk_widget_show(button);
		gtk_box_pack_start(GTK_BOX(vbox), button,
			TRUE, TRUE, 0);
	}

	gtk_box_pack_start(GTK_BOX(hbox), vbox,
		FALSE, FALSE, 0);
	gtk_box_pack_start(GTK_BOX(hbox), scrollbar,
		FALSE, FALSE, 0);
	gtk_container_add(GTK_CONTAINER(viewport), hbox);
	gtk_container_add(GTK_CONTAINER(window), viewport);

	gtk_widget_show(window);

	gtk_main();

	return 0;
}