Media Keys - volume / play/pause/next...

[David Bovill]

>
>
> The media key events are sent. Several apps accept them, and you can
> customise what they do with https://github.com/pqrs-org/Karabiner-Elements
> which works robustly.
>
> Media key input from peripherals such as keyboards or earbuds typically
> adheres to the Human Interface Device (HID) standard
> <https://en.wikipedia.org/wiki/Human_interface_device#HID_standard>.
> Common media controls you might find include:
>
>    - Play/Pause: Toggles between play and pause for media playback.
>    - Stop: Stops the media playback.
>    - Next Track: Advances to the next track or chapter.
>    - Previous Track: Returns to the previous track or chapter.
>    - Volume Up: Increases the volume.
>    - Volume Down: Decreases the volume.
>    - Mute: Mutes or unmutes the audio.
>
> The way earbuds communicate with devices can also depend on the specific
> connection protocol they use. Bluetooth headphones and earbuds use the Audio/Video
> Remote Control Profile (AVRCP)
> <https://en.wikipedia.org/wiki/List_of_Bluetooth_profiles#Audio/Video_Remote_Control_Profile_(AVRCP)>
> to control playback (e.g., play, pause, volume control) on the paired
> device.
>


> On Sat, 21 Oct 2023 at 00:43, J. Landman Gay via use-livecode <
> use-livecode at lists.runrev.com> wrote:
> If rawKeyDown/Up doesn't catch them then I assume the OS isn't sending the
> keycodes to apps.
> --
> Jacqueline Landman Gay | jacque at hyperactivesw.com
> HyperActive Software | http://www.hyperactivesw.com
> On October 20, 2023 5:42:05 PM David Bovill via use-livecode
> <use-livecode at lists.runrev.com> wrote:
>
> > Surprisingly difficult. There are a couple of apps that let you customize
> > play/pause interactions from the keyboard - but they dont work when sent
> > from other devices such as earbuds. Livecode does not seem to read these
> > events either....
> >
> > On Fri, 20 Oct 2023 at 16:08, David Bovill <david.bovill at gmail.com>
> wrote:
> >
> >> Is there a way to trap for these keyboard events.
> >>
> >> Volume and Media Keys: In the HID standard, volume and media control
> keys
> >> often have specific usage IDs. For example:
> >>
> >>
> >>    - 0xE9 is for volume up.
> >>    - 0xEA is for volume down.
> >>    - 0xE2 is for mute.
> >>    - 0xCD is for play/pauseetc
> >>
> >>
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