[Libexif-devel] How to update the value of existing tag?

[Andre T. <an...@lc...>]

Hello,

Let's say I have an image file "img01.jpg", which was taken using "Super
Awesome Phone". This code, http://pastebin.com/ETYrHU3Z,
displays the camera model correctly.

What I'd like to ask is how the replace "Super Awesome Phone" (which is
identified by EXIF_TAG_MODEL) with another value, e.g "Nokia 2112"

I added these lines in main():
// init_tag is taken from
http://libexif.cvs.sourceforge.net/viewvc/libexif/libexif/contrib/examples/write-exif.c?view=markup
entry = init_tag(ed, EXIF_IFD_EXIF, EXIF_TAG_MODEL);
exif_set_long(entry->data, FILE_BYTE_ORDER, atol("Nokia 3330"));

But it didn't work. Nothing was changed.
How could I fix this?

-- 
*Andre Tampubolon*
GPG public key:pgp.mit.edu:11371/pks/lookup?op=get&search=0xC6492E7D01AA96CF