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Groups > comp.mobile.ipad > #37619
| From | Alan Meyer <ameyer2@yahoo.com> |
|---|---|
| Newsgroups | comp.mobile.android, comp.mobile.ipad |
| Subject | Re: Tablet as touchpad while showing tablet GUI on big screen? |
| Date | 2014-06-19 19:29 -0400 |
| Organization | A noiseless patient Spider |
| Message-ID | <53A37252.8060507@yahoo.com> (permalink) |
| References | <llg6db$bq3$1@dont-email.me> |
Cross-posted to 2 groups.
On 5/20/2014 2:20 PM, John Doe wrote:
...
> Can you use the tablet as a virtual keyboard and/or a touchpad
> while displaying the contents of the tablet, the GUI output part
> like windows and dialogs that we interact with, on a big monitor?
...
This has been an amazingly flame ridden thread with more heat than
light. I think your question makes perfect sense and I'm not sure why
so many folks are having trouble understanding it - though in many cases
the problem is not that they don't understand what you're asking, but
that they're trying to offer help for at least some part of the problem,
i.e., they really are trying to help you and not give you a tough time.
However, leaving that entirely aside, I'm not aware of any solution to
the problem.
It seems to me there are two parts to what you want to do:
1. Can you get the tablet screen display to appear on a monitor?
The answer to that is Yes, if you have a tablet that offers the
appropriate outputs. If your tablet conforms to the MHL standard or the
SlimPort standard it can send its screen output, and audio too, to a
monitor. There are other hardware/software solutions as well.
But you may have known that already.
2. Can you delete the onscreen keyboard from the output to the monitor?
I don't know the MHL or SlimPort standards but I'd be very surprised if
they, or any other output systems, support this. As near as I can tell,
the output methods are designed to work with ANY software. I assume
they do that by taking the processed visual output of the display, i.e.,
the output after every program (such as the application you are running
and the virtual keyboard) have finished and what's left is raw data from
the video memory, no longer having any association with any particular
application (e.g., OS, app or keyboard). It's no longer a keyboard or
an app, it's just a pixel map image.
I would think that any solution that does what you want would have to
intervene earlier in the process of constructing the display image. It
would have to have access to the output of an application BEFORE the
keyboard is overlaid upon it. To support that, someone would have to
write some very low OS screen driver level software that preserved the
pre-overlaid image and sent it to the output channel before passing it
on to the software that overlaid the keyboard on it.
I would think it would also require two video memories - one that the
app writes to and which is read by the monitor driver, and one that the
tablet display driver reads - which is copied from the first memory onto
the second and then overlaid by the keyboard.
Is it possible to do that? I'm sure it is, but I haven't heard of
anyone doing it, and it's not hard to see why.
It's a hard problem and there's probably more software involved than 1
app plus 1 keyboard. There are also notification areas added by the OS
and there may be interactions between the keyboard and the app that
affect what the app generates. Also, a smart app might not even bother
drawing the screen under the parts that it believes are currently
overlaid by the keyboard. So what your video driver would show would be
useless for the part that was "under" the keyboard. Some apps might
work and some might not. Paradoxically, the simpler apps would work and
the smarter, highly optimized apps, would not.
The best people to build such an app would probably be the programmers
at Google who develop the keyboard app, or at one of the big vendors
like Samsung, who understand the workings of their hardware and can make
the appropriate modifications to the keyboard app and output drivers.
However, you never know. Super-smart programmers and engineers can crop
up anywhere in the world and figure out a lot more than anyone would
imagine them to be able to do.
Alan
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Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 18:20 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? nospam <nospam@nospam.invalid> - 2014-05-20 14:22 -0400
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 18:32 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? nospam <nospam@nospam.invalid> - 2014-05-20 15:31 -0400
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 19:41 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? nospam <nospam@nospam.invalid> - 2014-05-20 15:46 -0400
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 20:03 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? nospam <nospam@nospam.invalid> - 2014-05-20 16:20 -0400
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 20:40 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Jolly Roger <jollyroger@pobox.com> - 2014-05-20 20:56 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 22:10 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 15:15 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 22:20 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 15:52 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 22:58 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 16:05 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 23:16 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Jolly Roger <jollyroger@pobox.com> - 2014-05-21 00:17 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Jolly Roger <jollyroger@pobox.com> - 2014-05-21 00:17 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 00:37 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Neil Ellwood <niel.elllwood2@btinternet.com> - 2014-05-21 03:32 -0500
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 10:57 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Your Name <YourName@YourISP.com> - 2014-05-21 09:00 +1200
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 14:53 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 15:00 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 22:18 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Your Name <YourName@YourISP.com> - 2014-05-21 13:31 +1200
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 02:35 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 19:52 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 02:54 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Jolly Roger <jollyroger@pobox.com> - 2014-05-20 18:56 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 19:25 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Theo Markettos <theom+news@chiark.greenend.org.uk> - 2014-05-20 20:23 +0100
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 19:34 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? nospam <nospam@nospam.invalid> - 2014-05-20 15:37 -0400
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 19:45 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? nospam <nospam@nospam.invalid> - 2014-05-20 15:46 -0400
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 19:57 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? nospam <nospam@nospam.invalid> - 2014-05-20 16:20 -0400
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 14:24 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 22:23 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 15:59 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 23:18 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 16:29 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? Poutnik <poutnik@privacy.invalid> - 2014-05-21 06:55 +0200
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 10:59 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 14:22 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? "Stanley Daniel de Liver" <admin@127.0.0.1> - 2014-05-21 10:20 +0100
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 13:50 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? Jolly Roger <jollyroger@pobox.com> - 2014-05-20 20:59 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-20 22:19 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Jolly Roger <jollyroger@pobox.com> - 2014-05-21 00:18 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 00:34 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 14:30 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 01:06 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Jolly Roger <jollyroger@pobox.com> - 2014-05-21 01:13 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 01:23 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 18:32 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? Jolly Roger <jollyroger@pobox.com> - 2014-05-21 01:35 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 19:05 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 02:16 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-20 19:43 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 02:52 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Gordon Levi <gordon@address.invalid> - 2014-05-21 20:01 +1000
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 11:17 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Michelle Steiner <michelle@michelle.org> - 2014-05-21 06:49 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 15:30 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 20:32 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Michelle Steiner <michelle@michelle.org> - 2014-05-21 17:38 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-22 01:43 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Savageduck <savageduck1@{REMOVESPAM}me.com> - 2014-05-21 07:32 -0700
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <jdoe@usenetlove.invalid> - 2014-05-21 15:38 +0000
Re: Tablet as touchpad while showing tablet GUI on big screen? Alan Meyer <ameyer2@yahoo.com> - 2014-06-19 19:29 -0400
Re: Tablet as touchpad while showing tablet GUI on big screen? John Doe <always.look@message.header> - 2014-06-20 00:11 +0000
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