[iyonix-support] Re: USB graphic tablet

In message <40a13d654f.boase@xxxxxxxxxxxxxxxxx>
          Bernard Boase <b.boase@xxxxxxx> wrote:

> On 21 Jan, Dave Higton <davehigton@xxxxxxxxxxxxx> wrote:
> 
> > In message <8faf19634f.boase@xxxxxxxxxxxxxxxxx>
> >           Bernard Boase <b.boase@xxxxxxx> wrote:
> 
> >> Anyone had success in using a graphics tablet?
> 
> > What make and model is the tablet?
> 
> Well, it's a cheapish but reasonably functional tablet bought from
> Maplin. It's from the Far East and is Model WP5540 from
> UC-Logic Technology Corp www.uc-logic.com and features:
> 
> - 1024 pressure levels.
> - left mouse button at pen tip.
> - middle and right mouse buttons on pen shaft.
> - tablet hot-spots arranged round the periphery of the tablet.
> - 3-button wireless mouse with 400dpi resolution.
> - mini-CD with some supporting software for Windows and MAC OS X.
> - trial versions of Photoshop and Corel support software.
> 
> Interesting comments so far, plus an excahnge off list with Paul 
> Reuvers of http://www.xat.nl/, author of !HID. He confirms that most 
> tablets should work immediately if only as a mouse replacement, and 
> that !HID can support additional features if it knows the "magic 
> command" to turn the unit into a real tablet (i.e. not just a mouse).
> 
> Then additional input information could be generated, but that 
> presumably still has to be communicated to an app, perhaps by the 
> Eesox SWI mentioned by Martin.
> 
> Meanwhile my tablet doesn't yet function even as a mouse on the 
> Iyonix, so it's probably not going to have any use under RISC OS.

I have a Nisis Easypen tablet, model T-6000U.  Curiously it
seems to have two identities; USBinfo says the manufacturer
is Aiptek and the model is either APT-USB-3 or APT-2 Tablet.
Anyway, it doesn't produce any response under !HID except a
momentary change in the colour of the mouse cursor whenever
the pen touches the surface or when I click a pen button.
It also has a cordless mouse that only works on the tablet.
This produces no effect under !HID.

As I said, I got an application driver to work, though the
chances that it will work for you are minimal as I wrote it
specifically for the tablet I have; the code is in no way
generic.  It's also notable that occasionally the data from
the tablet are seriously in error, so when anybody writes a
driver for any such tablet, they will have to perform some
validation and rejection of errored values (e.g. a huge
leap across the surface).

Dave
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