static void quit(
void *wid, gpointer data) {
     gtk_main_quit();
}
static void selectionCallback(void *wid, gpointer data){
    char text[128];
    std::cout<<"you selected : "<<text<<std::endl;
    string textS;
    std::cout<<"you selected : "<<textS<<std::endl;
}
int main(
int argc, 
char *argv[]) {
     gtk_init( &argc, &argv );
    Selection selection(
"test list items",G_CALLBACK(selectionCallback));
     selection<<"test"<<"this"<<"one";
    topWindow<< hBox;
    gtk_main();
}