[gtkmm] Using a combo?

[Markus Gerwinski <markus gerwinski de>]

Hi folks,

I've got a few questions around the combo:

1. How do I fill in values for the popdown list? -- As it seems, the only way
   to do so is the `set_popdown_strings' method, which needs a Glib::ListHandle
   as a parameter. However, I don't find clear instructions or a usage example
   of Glib::ListHandle anywhere.
2. How do I trigger the popdown? Up to now, I tried using "get_list() -> show()",
   but that doesn't work.

Thanks in advance,

  Markus