Each item in the toolbar should have a unique ID. Use these IDs to access the toolbar items in your application.
The example below shows how to access toolbar items using the contol ID.
void CMyAppView::DoSomethingToButton()
{
CAknToolbar* toolbar = Toolbar();
if ( toolbar )
{
CAknButton* button = static_cast<CAknButton*>( toolbar->ControlOrNull( KButtonId ) );
if ( button )
{
...
}
}
}