Sender: lebotlan at beaune.inria.fr
Message-ID: <3DC01234.36227E29 at beaune.inria.fr>
Date: Wed, 30 Oct 2002 18:09:08 +0100
From: Didier Le Botlan <lebotlan at beaune.inria.fr>
Organization: INRIA (Projet CRISTAL)
MIME-Version: 1.0
To: lablgtk at kaba.or.jp
Subject: Lablgtk and X
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Hello list,

I wish to communicate with ghostscript to tell it to draw into a given
pixmap.
Some time ago I implemented it using only X bindings (and it worked),
but now I am trying to use lablgtk.

In order to talk to ghostscript, it seems necessary to:
 - Get an atom (Gdk.Atom.intern should work)

 - Set a property (signature is probably   'windowid' -> atom -> content
-> unit)
   The content is a string. 'atom' corresponds to the name of the
property.
   Function gdk_property_change is probably what I need, but I do not
understand its signature,
   and I am not able to interface it to OCaml yet.

 - Finally, I have to catch XClientMessageEvent(s). Jacques kindly gave
me a patch to lablgtk which provides this feature.

Does anyone knows how to talk to ghostscript in a simpler way ? (I want
to tell him to draw into a given pixmap.)
Any advice to write the caml interface to gdk_property_change ?


--
Didier Le Botlan
http://cristal.inria.fr/~lebotlan