how to show the entry completion popup as soon as the text field has focus in gtk+ 3.2?

Question

I have a Gtk Entry that uses a Entry Completion object. I have set it up to an extent. If I enter the minimum key length number of characters the completion popup shows me available choices. So far so good.

Now what I want is that the text field should show the completion popup even it is empty, as soon as it has focus. Even if set the completion object's minimum key length to 0, the completion popup will not immediately appear as soon as the text field has focus. It will, however, appear if I enter something then delete it, leaving the text field empty.

My real goal is to select an item from a predefined list of choices, quickly, using the keyboard. What I did was to use a Gtk Entry attached to an Entry Completion Object which uses a List Store. Any alternatives are most welcome...

I am using gtkmm/Glade for doing my work. Please tell me if I need to add anything.

Thanks

Answer 1

If you just want to select from a list of predefined choices you'd probably be better using a combo box instead of a entry.