From: Olivier Andrieu <andrieu at ijm.jussieu.fr>
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Message-ID: <16306.4493.522709.269560 at akasha.ijm.jussieu.fr>
Date: Wed, 12 Nov 2003 11:55:09 +0100
To: Claudio Sacerdoti Coen <sacerdot at cs.unibo.it>
Cc: lablgtk at kaba.or.jp
Subject: Re: GTree row selection event
In-Reply-To: <20031110105058.GA19281 at cs.unibo.it>
References: <20031107100532.GA17659 at cs.unibo.it>
	<20031110104118V.garrigue@kurims.kyoto-u.ac.jp>
	<20031110105058.GA19281@cs.unibo.it>

Hi,

 Claudio Sacerdoti Coen [Monday 10 November 2003] :
 >  I do. But still it has some problems:
 > 
 >   1. no event structure (I can not detect a double-click)

It quite easy to construct an event_ops object even if the widget
class does not provide an #event method :

let make_event w =
 if w#misc#get_flag `NO_WINDOW
 then failwith "widget cannot receive events"
 else new GObj.event_ops w#as_widget

This function checks whether the widget has an associated GdkWindow
(IIRC it's a requirement for receiving X events and event signals) and
then builds an event_ops object.

HTH,
-- 
 Olivier