Up, Down and Sideways

Richmond richmondmathewson at gmail.com
Fri Dec 13 05:42:24 EST 2013

On 13/12/13 12:18, Martin Baxter wrote:
> On 13/12/13 05:32, Richmond wrote:
>> On 13/12/13 01:57, Warren Samples wrote:
>>> On 12/12/2013 02:31 PM, Richard Gaskin wrote:
>>>> And that's why we need an authoritative source.  I've never looked into
>>>> it deeply enough to find which component is handling the Alt keys.  But
>>>> if it's not Gnome, it may be something lower (though almost certainly
>>>> not the kernel), or something higher (possible Ubuntu's keybindings
>>>> interface, which I had thought were inherited from Gnome, but may be
>>>> part of what they get from Debian).
>>> These seem to be common shortcuts under Linux. I use them under KDE. I
>>> like alt+drag to resize in particular, and note that the only way I
>>> can grab and move the LiveCode tools palette is using alt. It may not
>>> be on by default in all distros. I can turn it on and off as well as
>>> change the modifier key. I have seen references in forum posts which
>>> indicated that at least some KDE users who had never used these
>>> shortcuts had to turn them on.
>>> When I change the modifier key for window resizing and moving to
>>> "Meta" (option), Richmond's script runs as expected. LiveCode works as
>>> stated, so long as the OS isn't hijacking the signal for its own
>>> purposes further up the hierarchy.
>>> Conflicts in creating shortcuts are always a possibility and require a
>>> little caution, and it's good to make people aware of the high
>>> probability that "alt+mouseX" will be unavailable to LiveCode under
>>> Linux, but I think it's not quite right to suggest it's broken.
>>> Warren
>> That's a good point, but the problem I have is that I am putting a
>> program together for use by Professors of Old Church Slavonic who have
>> computers running Mac, Win and Linux and know nothing at all about how
>> to muck about the mod. keys on their machines.
>> Therefore my standalone should "just work" when it ends up on some
>> Prof's machine, regardless of
>> what system s/he is running.  AND, the mod. keys used should be the same
>> ones regardless of OS as well.
>> Richmond.
> On my (elderly) Ubuntu, variant/high bit characters are typed using
> combinations of:
> Alt Gr
> shift
> Rather than alt + shift. And that is the stock configuration. You might
> perhaps be able to use the keysdown to detect these, but the returned
> keycodes may vary across systems I guess.
> Easier for left-handers anyway.
> Might be nice for linux users if livecode could detect the state of Alt
> Gr key.
> On my Ubuntu, the keysdown gives me:
> R Shift	65506
> L Shift 65505
> Alt	[nothing]
> Alt Gr	65027
> L Shift + Alt	65505,65511
> R Shift + Alt Gr	65506,65312
> I don't know if this helps you at all, but it seemed worth mentioning.
> I would expect that alt + shift should work for windows and mac though,
> so this issue is presumably Linux specific.
> Martin

That seems a helpful idea.

However, I'm not sure what you mean by 'Alt Gr'.


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