#61 Missed key presses w/ TabletPC Stylus

open
nobody
5
2006-09-10
2006-09-10
Anonymous
No

Version 2.81

condition exists with all roms included in dist, also
in most recent rom updates from TI. Appears to be
independent of rom used.

machine is a Fujitsu Lifebook T4210 running XP Tablet
2005 (sp2) with factory pen driver installed.

Problem: when attempting to tap on the buttons, most
taps fail to register. key presses do register when
the trackpad button is used, and also when pen is
double tapped to produce a double click. Note that
key pressed DO occasionally register with the single
pen tap, but it is around one in 20 or so.

tried changing emu speed lock, but it did no good.

have not tried with the updated driver Wacom has on
their website.

is it possible that the mouse-down event from the pen-
tap is too brief for TiEMU to catch?
just tested theory. very rapid taps on the track pad
button are also missed by TiEmu, though windows
itself does catch them (was able to do a sharp tap to
change window focus, but the same tap would not
register a key press. tested several times to verify.

Paul

celemourn@dyferian.com

Discussion

  • Nobody/Anonymous

    Logged In: NO

    UPDATE: key presses ARE recognized if the stylus is
    draged across the key. Tap and hold, key press is not
    recognized, but then drag a little, and the key press
    registers.

    Paul

     
  • Nobody/Anonymous

    Logged In: NO

    just a note: VTi 2.5 b5 does not display this problem.

    paul

     
  • Nobody/Anonymous

    Logged In: NO

    Perhaps because Windows sends a "click" event when clicks
    are registered by Windows (because Windows also registers
    clicks when the tablet pen is tapped and moved slightly, or
    if the touchpad is tapped lightly), but TiEmu registers by
    mouse down/mouse up, which might not always work under these
    conditions, and besides, it wouldn't account for special
    conditions like the ones that Windows handles for tablet PC
    clicks.

    This is just my hypothesis: perhaps the GTK version of TiEmu
    uses image areas for the buttons and registers mouse down/up
    events, instead of button widgets, which probably would
    register mouse clicks correctly.

     
  • Kevin Kofler

    Kevin Kofler - 2007-02-07

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    Originator: NO

    Romain, you said in #1634831 that you can't fix this. Is there really no way we can solve this problem? We already got 3 reports of tablet-related problems (this bug and 2 duplicates).

     
  • Kevin Kofler

    Kevin Kofler - 2007-02-07

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    Could this be related to this GTK+ bug?
    http://bugzilla.gnome.org/show_bug.cgi?id=154657

    In any case, I suspect the problem to be in GTK+, not TiEmu, though I could be wrong.

     
  • Kevin Kofler

    Kevin Kofler - 2007-02-07

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    user_id=573515
    Originator: NO

    Or it might be this one:
    http://bugzilla.gnome.org/show_bug.cgi?id=143460
    which has been fixed on January 19 in the GTK+ 2.10 branch. Unfortunately, the latest GTK+ from gladewin32.sf.net is a 2.10.7 dated January 9, thus we'll have to wait for the next version to see if that helped.

    However, all 3 upstream bugs might be different problems, because they all affect the Wintab API, which (as far as I can tell) is not used by default, not the regular mouse API.

     
  • Michael Plasmeier

    I am confirming this on a Fujitsu T4220 running Windows Vista SP1. I filed bug 2379735 which is a duplicate of this.

     

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