#include <gtk/gtk.h>

int main(int argc, char **argv)
{
    GtkWidget *shell, *mainw, *graph;
	int width, height;
	GtkRequisition minsize, natsize;

	gtk_init(&argc, &argv);

	shell = gtk_window_new(GTK_WINDOW_TOPLEVEL);
	gtk_window_set_title(GTK_WINDOW(shell), "tester");
	g_signal_connect(G_OBJECT(shell), "destroy",
						G_CALLBACK(gtk_main_quit), NULL);

	mainw = gtk_box_new(GTK_ORIENTATION_VERTICAL, 0);

	gtk_container_add(GTK_CONTAINER(shell), GTK_WIDGET(mainw));
	gtk_widget_set_name(GTK_WIDGET(mainw), "MainWindow");
	gtk_widget_show(GTK_WIDGET(mainw));

	graph = gtk_drawing_area_new();

	gtk_widget_set_size_request(GTK_WIDGET(graph), 750, 600);
	gtk_widget_set_name(GTK_WIDGET(graph), "graph");

	gtk_box_pack_start(GTK_BOX(mainw), GTK_WIDGET(graph), TRUE, TRUE, 0);
	gtk_widget_show(GTK_WIDGET(graph)) ;

	if ( argc > 1 ) {
		gtk_window_set_default_size(GTK_WINDOW(shell), 0, 0);
	}

	gtk_window_get_default_size(GTK_WINDOW(shell), &width, &height);
	fprintf(stderr, "window default size %d %d\n", width, height);

	gtk_widget_get_preferred_size(GTK_WIDGET(shell), &minsize, &natsize);
	fprintf(stderr, "widget min size %d %d   widget natural size %d %d\n",
			minsize.width, minsize.height, natsize.width, natsize.height);

	gtk_widget_show_all(shell);

	gtk_main();

    return 0;
}