From: dron@ak4719.spb.edu (Andrey Kiselev)
Date: Fri, 1 Aug 2003 23:09:25 +0400
Subject: [Tiff] How to change a tag in an existing TIFF?
In-Reply-To: <NEBBIDCGCHNPNLFHEDDAIEONDBAA.Andreas_Metzner@mra.man.de>
References: <NEBBIDCGCHNPNLFHEDDAIEONDBAA.Andreas_Metzner@mra.man.de>
Message-ID: <20030801190925.GB20731@ak4719.spb.edu>

On Thu, Jul 31, 2003 at 08:18:25AM +0200, Andreas Metzner wrote:
> I want to change a tag value within an existing TIFF file.
> Opening in "a"ppend mode and subsequent TiffSetField have no effect.

You should call TIFFRewriteDirectory() after TIFFSetField(). But this
functionality was implemented after 3.5.7 release, so you need recent
libtiff software from CVS or latest beta release.


-- 
Andrey V. Kiselev
Home phone:  +7 812 5274898  ICQ# 26871517
