GtkComboBox: How to be notified of selection

I'm using a GtkComboBox in Dia for zoom selection.  I can't quite get it to
behave the way I'd like.  It ought to be that when the user selects an item
from the drop-down list (making the drop-down disappear), the zoom amount
should be updated.  However, I haven't found a signal that will tell me
that the user made his or her final selection.  "select-child" and
"selection-changed" from the GtkList is called while the mouse is dragged
over the items.  "unmap", "hide" and "unrealize" don't get called.  I don't
want the user to have to press Enter after selecting from the menu, that's
all.  What should I do?


Lars Clausen (| Hårdgrim of Numenor
"I do not agree with a word that you say, but I   |----------------------------
will defend to the death your right to say it."   | Where are we going, and
    --Evelyn Beatrice Hall paraphrasing Voltaire  | what's with the handbasket?

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