From: Mikko Rasa <tdb@tdb.fi>
Date: Sun, 7 Feb 2016 13:53:19 +0000 (+0200)
Subject: Track the currently focused window in Display
X-Git-Url: http://git.tdb.fi/?a=commitdiff_plain;h=e15959a69551c2027029470e65a17ea5a305545b;hp=e15959a69551c2027029470e65a17ea5a305545b;p=libs%2Fgui.git

Track the currently focused window in Display

On mobile platforms it's important for applications to stop rendering or
otherwise using excessive amounts of CPU power when inactive.

OS X code is a dummy implementation because I need more time to understand
the relevant events on that platform.
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