From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <ecc@cmu.edu>
X-Original-To: caml-list@yquem.inria.fr
Delivered-To: caml-list@yquem.inria.fr
Received: from mail4-relais-sop.national.inria.fr (mail4-relais-sop.national.inria.fr [192.134.164.105])
	by yquem.inria.fr (Postfix) with ESMTP id 24EDEBBAF
	for <caml-list@yquem.inria.fr>; Tue,  1 Dec 2009 16:48:16 +0100 (CET)
X-IronPort-Anti-Spam-Filtered: true
X-IronPort-Anti-Spam-Result: Av8AAMrJFEuAAtnFmWdsb2JhbACBTpojAQEBAQEICwoHE64JhhuITYQxBA
X-IronPort-AV: E=Sophos;i="4.47,321,1257116400"; 
   d="scan'208";a="51320315"
Received: from smtp02.srv.cs.cmu.edu ([128.2.217.197])
  by mail4-smtp-sop.national.inria.fr with ESMTP/TLS/DHE-RSA-AES256-SHA; 01 Dec 2009 16:48:15 +0100
Received: from stratocaster.home (pool-96-236-220-64.pitbpa.fios.verizon.net [96.236.220.64])
	(authenticated bits=0)
	by smtp02.srv.cs.cmu.edu (8.13.6/8.13.6) with ESMTP id nB1Fm9ZX017340
	(version=TLSv1/SSLv3 cipher=AES256-SHA bits=256 verify=NO)
	for <caml-list@inria.fr>; Tue, 1 Dec 2009 10:48:10 -0500 (EST)
Received: from ecc by stratocaster.home with local (Exim 4.69)
	(envelope-from <ecc@cmu.edu>)
	id 1NFUxU-0007eR-OR
	for caml-list@inria.fr; Tue, 01 Dec 2009 10:48:08 -0500
Date: Tue, 1 Dec 2009 10:48:07 -0500
From: Eric Cooper <ecc@cmu.edu>
To: caml-list@inria.fr
Subject: Re: [Caml-list] lablgtk and pdf
Message-ID: <20091201154807.GD12568@localhost>
Mail-Followup-To: caml-list@inria.fr
References: <d0fbb16b0911301809i3a897e4erf63248ae467c67db@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <d0fbb16b0911301809i3a897e4erf63248ae467c67db@mail.gmail.com>
User-Agent: Mutt/1.5.20 (2009-06-14)
X-Scanned-By: mimedefang-cmuscs on 128.2.217.197
X-Spam: no; 0.00; lablgtk:01 lablgtk:01 gtk:01 ocaml:01 bindings:01 argv:01 gmain:01 gwindow:01 gmisc:01 gmain:01 2009:98 pane:98 wrote:01 caml-list:01 callback:02 

On Tue, Dec 01, 2009 at 02:09:27AM +0000, Ewen Maclean wrote:
> I am generating pdf images from latex source, and I would like to
> show them on screen in part of a pane in lablgtk2. Is it possible to
> do this using a GImage widget or something similar?

I think you will have to render the PDF first into a simple image
format like PPM, and then use GTK to display that.  I don't know of
any OCaml bindings for libpoppler, but you can use the standalone
program "pdftoppm" from the poppler-utils package.  Then you can
display the .ppm file as follows:

    let file = Sys.argv.(1) in
    GMain.init ();
    let window = GWindow.window ~title: "Show Image" () in
    let image = GMisc.image ~file ~packing: window#add () in
    window#connect#destroy ~callback: GMain.quit;
    window#show ();
    GMain.main ()