Re: Setting the active area of drawing tablet

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On Tue, Sep 14, 2021 at 2:34 PM Paul Smith <phhs80@xxxxxxxxx> wrote:
>
> > > While sliding the stylus horizontally from the left to the right, the
> > > screen cursor moves accordingly, but the right border of the screen is
> > > reached when the stylus is in the middle of the drawing tablet. Maybe,
> > > for some strange reason, my drawing tablet considers there are two
> > > screens and not a single one. How can we test that?
> >
> > The table knows nothing. :-)  It has a certain range of values and the
> > input layer takes that and the display size and should map the values
> > accordingly.  So something is going wrong and that's what I'm hoping to
> > find out with the hidviz program.
>
> Thanks, Samuel. When the stylus is on the middle of my drawing tablet,
>
> ABS-X = 30693 (approximately).
>
> When the stylus is on the lower right corner, hidviz padding input shows
>
> X = 2 and Y=2.
>
> From hiviz, I get yet the following:
>
> ----------------------------------
> Usage Page (Digitizer)
> Usage (Pen)
> Collection (Application)
>   Report ID (10)
>   Usage (Stylus)
>   Collection (Physical)
>     Usage (Tip Switch)
>     Usage (Barrel Switch)
>     Usage (Eraser)
>     Usage (Invert)
>     Usage (Secondary Tip Switch)
>     Usage (Barrel Switch)
>     Logical minimum (0)
>     Logical maximum (1)
>     Report size (1)
>     Report count (6)
>     Item
>     Usage (In Range)
>     Report size (1)
>     Report count (1)
>     Item
>     Item
>     Usage Page (Generic Desktop)
>     Usage (X)
>     Usage (Y)
>     Unit exponent (-3)
>     Unit (51)
>     Logical maximum (32767)
>     Physical minimum (0)
>     Physical maximum (2048)
>     Report size (16)
>     Report count (2)
>     Item
>     Usage Page (Digitizer)
>     Usage (Tip Pressure)
>     Logical maximum (8191)
>     Report size (16)
>     Report count (1)
>     Item
>   End Collection
> End Collection

Does the above give you some clue, Samuel?

Paul
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