On Tue, Aug 21, 2007 at 06:23:54PM +0300, Kimmo Jukarainen wrote: > I wanted to make a couple of small changes to the Finnish virtual > keyboard layout (for example, replace å and Å with / and |), but > couldn't find enough documentation about the virtual keyboard to > do that. > > There are only few incomplete documents available about .vkb format, > gen_vkb utility and it's XML input format, and I couldn't find even > a single working example of the XML inputfile for gen_vkb. Let alone > the sources for the current layout files available in the device. > > So, I spend couple of hours reverse engineering the .vkb files and > created a decode_vkb perl-script that decodes the binary .vkb files > to XML files that can be edited and then converted back to binary > with gen_vkb.
> The script can currently decode all but one of the .vkbs in n800 to > XML files that gen_vkb encodes back to original ones. It's available > from my website along with some documentation: > > http://idoru.metadreams.net/~kimju/src/maemo/decode_vkb/ Been there, done that. I've a Python script that can decode all the .vkb files found on my 770, and those can be converted back with gen_vkb to produce identical binaries. I never published or announced my script because someone on IRC drew my attention to the draconic EULA on the 770/N800 firmware image download page that seems to prohibit reverse engineering, among other things. > Of the missing features, I really would like to add support for > modifier keys (mostly ctrl), but as the documentation is incomplete > and no official .vkb uses this feature I'm not sure how it is > even supposed to work. Any help would be appreciated and good and > complete documentation for both the XML and binary vkb formats even > more so. I also found some ancient C include file in Google that had macro definitions for various bits in what looked like an earlier version of the .vkb file format. I think I figured out how to describe all the documented (and undocumented) features in the .xml files so that gen_vkb accepts them, and then experiments showed that many of the things that can be defined in the .vkb are not supported at all by the actual closed-source virtual keyboard implementation. Marius Gedminas -- Is it not true that nobody finds it impossible to believe that a double negative isn't bad grammatical form? -- Mike on alt.pizza.delivery.drivers
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