[Openicc] Suggested update to "ICC Profiles in X Specification 0.4"

[Tobias Ellinghaus]

Am Mittwoch, 16. November 2016, 18:11:07 CET schrieb Graeme Gill:

[...]

> Because with Xinerama or XRandR there may be multiple Screens, the following
> naming scheme is used to identify the corresponding atom in a root window:
> 
> First working Output of first Screen: _ICC_PROFILE
> First working Output of second and subsequent Screens: _ICC_PROFILE_xxx
> 
> where:
> 
>  xxx is the X11 Screen index, starting at 0

The specification in its current 0.4 form calls for the screens to be numbered 
in the Xinerama order. In your proposed change you only mention the X11 Screen 
index. I couldn't find any documentation to what that is. Do you have any 
pointer to how to get that number?

Currently I am struggling with GTK listing screens with 
gdk_display_get_monitor() in a different order from what I get when iterating 
over XRRGetScreenResources()'s outputs[] array.

[...]

> regards,
> 	Graeme Gill.

Tobias
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