Re: GtkComboBox question

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Mike,
-----Original Message----->From: Mike Massonnet <mmassonnet@xxxxxxxxx>>Sent: Mar 11, 2009 5:41 PM>To: gtk-list@xxxxxxxxx>Cc: Igor Korot <ikorot@xxxxxxxxxxxxx>>Subject: Re: GtkComboBox question>>Le Wed, 11 Mar 2009 14:24:21 -0700 (GMT-07:00),>Igor Korot <ikorot@xxxxxxxxxxxxx> a écrit :>>> Mike,>> >> -----Original Message----->> >From: Mike Massonnet <mmassonnet@xxxxxxxxx>>> >Sent: Mar 11, 2009 1:47 PM>> >To: gtk-list@xxxxxxxxx>> >Cc: Igor Korot <ikorot@xxxxxxxxxxxxx>>> >Subject: Re: GtkComboBox question>> >>> >Le Wed, 11 Mar 2009 12:54:09 -0700 (GMT-07:00),>> >Igor Korot <ikorot@xxxxxxxxxxxxx> a écrit :>SNIP>>> >> Basically I'm looking for a way to override the mouse click on the>> >> arrow for the combo box when the list either pops-up or closes>> >> down. If this is not the right event/signal, please let me know.>> >>> >I didn't try. The last time I had to hack with this case I used the>> >popdown/up signals, which was plain wrong as they work strictly with>> >the keyboard shortcuts. So you might be right with>> >notify::popup-shown.>> >> Also, do you know how do I make the function that connects to>> this signal? I was hoping to write something like this:>>http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject-notify
That's very helpful. Thank you.So basically what I'm looking for is this code:
g_signal_connect( combo->popup-shown, "notify::popup-shown", G_CALLBACK(...),combo);
right?
>>> void my_func( GtkComboBox *widget, GtkScrollType scroll_type,>> gpointer user_data) {>>      if( widget->popup-shown )>>      {>> // code for list shown>>      }>>      else>>      {>> // code for list not shown>>      }>> }>>You can read the popup-shown value by using g_object_get(). I don't>know how to read the value out of the GParamSpec passed in the callback.
Ok. Problem is, this is what the doc says:
"Gets properties of an object. 
In general, a copy is made of the property contents and the caller is responsiblefor freeing the memory in the appropriate manner for the type, for instance by callingg_free() or g_object_unref(). "
What scares me is the words "In general". So if this property is boolean, then accordingto the example that follows, I don't have to free the memory. But then will I have a memoryleak?
>>Mike 
Thank you. You've been a great helper so far. ;-)
>>> But I don't know if this is a right prototype or not.>> And the code itself, I'm not sure if it's right as well, as I can't>> check...>> >> >>> >> Thank you.>> >> Thank you for the fast responce.>> >> >>> >Mike>> >
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