Re: Help with Gcolor3

[Emmanuele Bassi <ebassi gmail com>]

On 25 October 2017 at 09:40, Listings - www.majors-welt.net
<listing majors-welt net> wrote:
> Hi folks,
>
> i write here, because i dont know where it may fit.

You probably want to start a discussion on wayland-devel:
  https://lists.freedesktop.org/mailman/listinfo/wayland-devel

This list is for developing GTK applications.

> I am a user of a color-picker tool - previously Gcolor2 - that has now been
> adopted to Gnome3 -> Gcolor3 -> https://github.com/Hjdskes/gcolor3/
>
> Now while lots of linux distributions are switching to wayland as default
> session the color picking just dont work any more (which breaks the workflow
> of web and other developers) - even not in gimp afaik.

Correct; the idea is that only privileged components can access the
contents of the screen, and that applications need an appropriate
privilege escalation mechanism, usually by talking to those components
through a well-defined IPC mechanism, like DBus or a Wayland protocol
extension. Starting from a sandboxed environment and opening it up
appropriately is safer and more secure than having an open system and
closing it down.

> The developer of Gcolor3 has no straight idea how to fix this (and maybe
> some "wayland-api" is neccessary?)

You probably want to start with a compositor-specific API, like the
way screenshot and screen recording is performed in GNOME; if you want
more Wayland compositors to follow the same protocol, you will have to
draft the specification and discuss it on wayland-devel in order to
get buy in from all the developers of Wayland compositors out there.

Ciao,
 Emmanuele.

-- 
https://www.bassi.io
[@] ebassi [@gmail.com]