[gtkada] GtkAda 3.8.1 Question about events in GTK.COMBO_BOX_TEXT

[Jose Alberto Fernandez Parejo]

Hello,

We are developing an application in GtkAda3.8.1 and I have to insert a
GTK.COMBO_BOX_TEXT with a large number of elements.

I am trying to develop a search mechanism to once the GTK.COMBO_BOX_TEXT
is opened if the user press a key the elements starting with that key
are shown in the GTK.COMBO_BOX_TEXT.
For implementing this mechanism, we are defining and connecting the
signal "key_press_event" in a GTK.HANDLERS.RETURN_CALLBACK callback but
the signal is only triggered when the GTK.COMBO_BOX_TEXT is focused but
not when it is opened.
We have tried to connect to signals "popup" and "popdown" and these
signals are not triggered.

Is there any way to capture a key_pressed  or popup signal when the
GTK.COMBO_BOX_TEXT is opened? Or do you know other way to implement a
COMBO_BOX_TEXT search mechanism?


Thanks in advance.
Regards


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