GtkWidget *btn = gtk_button_new_from_stock(GTK_STOCK_CANCEL);
gtk_container_add(GTK_CONTAINER(box), btn);
gtk_container_add(GTK_CONTAINER(wnd), box);
GtkRequisition req;
GtkWidget *btn = gtk_button_new_from_stock(GTK_STOCK_CANCEL);
gtk_container_add(GTK_CONTAINER(box), btn);
gtk_container_add(GTK_CONTAINER(wnd), box);
GtkRequisition req;