Dynamically adding a wiget to a container created by glade

[Ravee Kondrakunta <Ravee_Kondrakunta phoenix com>]

 Hi,

I created a dialog with glade. In this dialog, I have a HBox with two widgets, one is the label and the other 
widget will be determined at the runtime.

In the code I got the reference to the HBox using get_widget after loading the glade file and then I am 
adding my widget to the HBox using the reference from the XML. The code compiles properly, but the widget is 
never shown.

Here is sample code for that...

xmlRef = Gnome::Glade::create("myglade.glade");
Gtk::HBox *pMyHBox;
xmlRef->get_widget("myHBox", pMyHBox);

Lets us assume I need to add one more label the the "myHBox"

Gtk::Label lab("new");
pMyHBox->add(lab); or
pMyHBox->pack_start(lab); or
pMyHBox->pack_end(lab); etc..

I tried all possible ways to show it.. Unfortunately, I couldn't see it on my dialog.

Please help me where I was wrong...

-Ravee