Message-ID: <43A72F18.6000309 at rftp.com>
Date: Mon, 19 Dec 2005 14:07:20 -0800
From: Robert Roessler <robertr at rftp.com>
Organization: Robert's High-performance Software
MIME-Version: 1.0
To: LablGTK List <lablgtk at math.nagoya-u.ac.jp>
Subject: Re: Pixbuf combo box
References: <lkylwlh0.fsf at mail.ru> <wti1rwc6.fsf at mail.ru>
In-Reply-To: <wti1rwc6.fsf at mail.ru>
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Dmitry Bely wrote:
> OK, trying to make it running myself, I've faced the following problem:
> 
> # let columns = new GTree.column_list;;
> val columns : GTree.column_list = <obj>
> # let icon_c = columns#add (Gobject.Data.gobject_by_name "GdkPixbuf");;
> Exception: Failure "Gobject.Type.from_name: GdkPixbuf".

You can not always take arbitrary expressions out of context and 
expect them to work... :)

Here, it seems like you need to actually have created a GdkPixbuf 
first.  In the context of this example, try inserting the following 
before the above code:

let _ = GdkPixbuf.from_file "gnome-fs-regular.png";;

> This is just taken from lablgtk-2.6.0/examples/iconview.ml, why it does not
> work? (the example itself fails on my Win32 system with
> Exception: Sys_error "/: Invalid argument".
> - probably it was written with Unix in mind)

As for the full example itself, yes, you need to change [at least] the 
"/" in line 123 to something Windows likes, e.g., "c:/":

let data = create_store file_pb folder_pb "c:/" in

Beyond that, there are more problems at runtime - some directories get 
displayed properly, and on others, the program just stops 
responding... perhaps worse than this, the example program is *really* 
slow at scanning and displaying directory contents.

Since overall, GTK on my Windows XP box does not seem terribly slow, I 
am hoping that this is just reflecting a weakness in this example.

Robert Roessler
robertr@rftp.com
http://www.rftp.com