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Groups > alt.os.development > #8866

Re: Flow of keystroke messages in a UI

From James Harris <james.harris.1@gmail.com>
Newsgroups alt.os.development
Subject Re: Flow of keystroke messages in a UI
Date 2015-10-04 15:23 +0100
Organization A noiseless patient Spider
Message-ID <murcl6$e4a$1@dont-email.me> (permalink)
References <mulmv6$1hv$1@dont-email.me> <mumj59$g7p$1@dont-email.me>

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On 02/10/2015 19:43, Bernhard Schornak wrote:
> James Harris wrote:
>
>
>> Other examples are viewing Youtube videos or reading Yahoo mail in a
>> browser. Such sites can prevent
>> a user typing Alt+F from getting the File menu and, instead, interpret
>> such keystrokes in the web
>> page. That's a similar problem to the one mentioned above.
>
>
> The underlying mechanism is called "accellerator table". Each
> GUI program can re-define keystrokes (incl. combinations with
> ALT, CONTROL, SHIFT) by adding an ACCELLERATORS statement and
> the key definitions in its resource file (*.rc).

I see that at

   https://en.wikipedia.org/wiki/Accelerator_table

though it seems to be a Microsoft term for basic shortcut key handling.

 > It is useful
> if sparsely used combinations get new meaning, but might also
> be abused to prevent the user from saving copyrighted data to
> her/his hard drive.

I am not sure about this as an effective mechanism wrt copyright. Most 
of the actions of the containing window can also be carried out using 
the mouse. There seem to be at least two problems with letting contained 
apps see things like Alt+key combinations:

1. Writers of contained web apps get carried away (they do) and redefine 
keys that the user might want not to be overridden - such as Alt+F.

2. Even if such app writers were to stay away from key combinations 
which have a known meaning to the browser they may still fall foul of 
the app being run by someone with another language. For example, Alt+H 
might bring down the Help menu in English but H does not appear in the 
Spanish word for Help which, I think, is Ayuda.

Perhaps Alt should be reserved for the browser (if web browsing) or the 
window (if running a normal app in its own window).

Perhaps apps in browsers could be allowed to use Control for keystroke 
handling.

Maybe that's too simple but it would make it clear to the user how to 
access each set of functions: Alt for the browser, Control for the app 
in the browser. ISTM better than using some Alt keys for the browser and 
other Alt keys for the app.

James

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Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2015-10-02 11:42 +0100
  Re: Flow of keystroke messages in a UI Bernhard Schornak <schornak@web.de> - 2015-10-02 20:43 +0200
    Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2015-10-04 15:23 +0100
      Re: Flow of keystroke messages in a UI Bernhard Schornak <schornak@web.de> - 2015-10-05 17:38 +0200
  Re: Flow of keystroke messages in a UI "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-10-02 17:17 -0400
    Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2015-10-04 16:36 +0100
      Re: Flow of keystroke messages in a UI "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-10-04 21:27 -0400
        Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2015-10-05 15:01 +0100
          Re: Flow of keystroke messages in a UI "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-10-05 21:57 -0400
            Re: halting Adobe Flash videos with Mozilla Firefox, was [Re: Flow of keystroke messages in a UI] "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-10-26 04:35 -0400
            Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2015-12-27 12:40 +0000
              Re: Flow of keystroke messages in a UI "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-12-27 15:51 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-01-03 12:08 +0000
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-01-03 14:55 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-01-13 17:58 +0000
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-01-15 11:32 +0000
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-01-16 03:29 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-01-16 13:44 +0000
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-01-16 12:55 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-01-16 19:55 +0000
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-01-18 07:39 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-01-18 22:45 +0000
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-01-19 22:28 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-01-27 13:27 +0000
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-01-27 17:20 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-01-28 11:03 +0000
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-01-22 17:43 +0000
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-01-23 13:17 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-01-27 13:42 +0000
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-04-08 09:14 +0100
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-02-14 09:56 +0000
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-02-14 09:11 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-02-14 15:58 +0000
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-02-15 05:55 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-02-15 15:57 +0000
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-02-16 05:33 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-02-24 06:16 +0000
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-02-24 18:03 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-02-28 06:25 +0000
                Re: Flow of keystroke messages in a UI "Alexei A. Frounze" <alexfrunews@gmail.com> - 2016-02-28 00:21 -0800
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-02-28 08:45 +0000
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-02-28 20:40 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-03-02 14:49 +0000
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-03-02 21:50 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-03-05 06:09 +0000
                OT politics was Re: Flow of keystroke messages in a UI "Kerr Mudd-John" <admin@127.0.0.1> - 2016-03-05 12:40 +0000
                Re: OT politics was Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-03-05 20:11 -0500
                Re: OT politics, was [Re: Flow of keystroke messages in a UI] Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-03-05 20:11 -0500
                Re: OT politics, was [Re: Flow of keystroke messages in a UI] James Harris <james.harris.1@gmail.com> - 2016-03-17 16:35 +0000
                Re: OT politics, was [Re: Flow of keystroke messages in a UI] Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-03-17 21:02 -0400
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-02-24 20:09 -0500
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-02-25 14:55 +0000
                Re: Flow of keystroke messages in a UI "Alexei A. Frounze" <alexfrunews@gmail.com> - 2016-02-16 03:56 -0800
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-02-17 04:21 -0500
                Re: Flow of keystroke messages in a UI "Alexei A. Frounze" <alexfrunews@gmail.com> - 2016-02-24 02:12 -0800
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-02-24 18:03 -0500
                Re: Flow of keystroke messages in a UI "Alexei A. Frounze" <alexfrunews@gmail.com> - 2016-02-28 02:53 -0800
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-02-28 20:15 -0500
                Re: Flow of keystroke messages in a UI "Alexei A. Frounze" <alexfrunews@gmail.com> - 2016-03-27 20:37 -0700
                Re: Flow of keystroke messages in a UI Rod Pemberton <NoHaveNotOne@bcczxcfre.cmm> - 2016-03-28 18:23 -0400
                Re: Flow of keystroke messages in a UI "Alexei A. Frounze" <alexfrunews@gmail.com> - 2016-03-27 21:10 -0700
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-01-15 14:34 +0000
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2016-01-15 15:10 +0000
        Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2015-10-05 15:39 +0100
  Re: Flow of keystroke messages in a UI "wolfgang kern" <nowhere@never.at> - 2015-10-03 12:48 +0200
    Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2015-10-04 17:00 +0100
      Re: Flow of keystroke messages in a UI "wolfgang kern" <nowhere@never.at> - 2015-10-04 23:32 +0200
        Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2015-10-05 14:05 +0100
          Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2015-10-05 15:17 +0100
            Re: Flow of keystroke messages in a UI "wolfgang kern" <nowhere@never.at> - 2015-10-06 10:35 +0200
              Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2015-10-06 16:28 +0100
                Re: Flow of keystroke messages in a UI "wolfgang kern" <nowhere@never.at> - 2015-10-06 19:14 +0200
                Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2015-10-06 20:02 +0100
          Re: Flow of keystroke messages in a UI "wolfgang kern" <nowhere@never.at> - 2015-10-06 10:46 +0200
            Re: Flow of keystroke messages in a UI "Rod Pemberton" <boo@fasdfrewar.cdm> - 2015-10-07 01:16 -0400
            Re: Flow of keystroke messages in a UI James Harris <james.harris.1@gmail.com> - 2015-12-27 12:50 +0000
              Re: Flow of keystroke messages in a UI "wolfgang kern" <nowhere@never.at> - 2015-12-27 23:22 +0100

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