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#include <gtk/gtk.h>
 
int main(int argc, char* argv[])
{
        gtk_init(&argc, &argv);
        GtkWidget *window, *menu_bar, *menu_item, *file_menu, *help_menu, *vbox, *button;
        window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
        g_signal_connect(window, "delete-event", G_CALLBACK(gtk_main_quit), NULL);
 
 
        menu_bar = gtk_menu_bar_new();
 
 
        file_menu = gtk_menu_new();
        help_menu = gtk_menu_new();
 
 
        menu_item = gtk_menu_item_new_with_label("File");
        gtk_menu_item_set_submenu(GTK_MENU_ITEM(menu_item), file_menu);
        gtk_menu_shell_append(GTK_MENU_SHELL(menu_bar), menu_item);
 
 
        menu_item = gtk_menu_item_new_with_label("Help");
        gtk_menu_item_set_submenu(GTK_MENU_ITEM(menu_item), help_menu);
        gtk_menu_shell_append(GTK_MENU_SHELL(menu_bar), menu_item);
 
 
        menu_item = gtk_menu_item_new_with_label("New");
        gtk_menu_shell_append(GTK_MENU_SHELL(file_menu), menu_item);
        g_signal_connect(menu_item, "activate", G_CALLBACK(menu_response), NULL);
 
 
        menu_item = gtk_menu_item_new_with_label("Exit");
        gtk_menu_shell_append(GTK_MENU_SHELL(file_menu), menu_item);
        g_signal_connect(menu_item, "activate", G_CALLBACK(menu_response), NULL);
 
 
        menu_item = gtk_menu_item_new_with_label("About");
        gtk_menu_shell_append(GTK_MENU_SHELL(help_menu), menu_item);
        g_signal_connect(menu_item, "activate", G_CALLBACK(menu_response), NULL);
 
 
        vbox = gtk_vbox_new(0,0);
        button = gtk_button_new_with_label("This is a Button");
        gtk_box_pack_start(GTK_BOX(vbox), menu_bar,0,0,0);
        gtk_box_pack_start(GTK_BOX(vbox), button,0,0,0);
 
 
        gtk_container_add(GTK_CONTAINER(window), vbox);
 
 
        gtk_widget_show_all(window);
        gtk_main();
        return 0;
} | 
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