ComboBox doesn't show any of its lines

Question

I just started using gtk2hs (gtk3 in hackage) and ran into some problems with comboBoxes. I cannot make a simple comboBoxNewText displaying its rows. I commented on everything unnecessary in my application, so I have a basic structure for the actual window.

import Graphics.UI.Gtk
import Control.Monad.IO.Class

main = do
  initGUI
  window <- windowNew
  set window [windowTitle := "Table", containerBorderWidth := 20,
              windowDefaultWidth := 800, windowDefaultHeight := 600]

  table <- tableNew 10 10 True
  containerAdd window table 
  lbox <- hBoxNew False 0
  rbox <- hBoxNew False 0
  tableAttachDefaults table lbox 0 3 0 10
  tableAttachDefaults table rbox 3 10 0 10

  cb <- comboBoxNewText
  comboBoxAppendText cb "test"
  boxPackStart lbox cb PackGrow 10

  on window deleteEvent $ liftIO mainQuit >> return False
  widgetShowAll window
  mainGUI

Am I missing something? gtk3 marked as unstable iirc on the hack, could this be a mistake? Or am I just doing something wrong? Adding comboBoxSetActive cb 0doesn't help either. To clarify, the actual combo box appears when the program starts, but it does not contain lines / is empty. image of Evernote

Answer 1

, , , ​​ gtk3 . , , https://github.com/gtk2hs/gtk2hs/issues/10