The docs for Gtk2::Ex::ComboBox say you want get_treeview to get the model: 

my @model = $combo->get_treeview; 
print $_ for @model;

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"Returns the treeview that serves as the model for the ComboBox".

In reply to Re^2: How to printout a Gtk2::ComboBox by Anonymous Monk
in thread How to printout a Gtk2::ComboBox by dabella12

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