dwm 6.8 fullscreenhook patch

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+# fullscreenhook
+
+## Description
+
+This patch publishes the active fullscreen window on the root window so other
+programs can react to it. It applies to dwm 6.8.
+
+dwm sets `_DWM_FULLSCREEN` to the window id of the fullscreen client when it
+enters fullscreen, and removes the property when it leaves or is unmanaged. A
+compositor, notification daemon or GameMode helper can watch it with:
+
+	xprop -root -spy _DWM_FULLSCREEN
+
+No configuration and no spawned commands.
+
+Assumes one fullscreen client at a time. With two, the property tracks the
+most recent one to enter.
+
+## Testing
+
+Applies and builds against dwm 6.8. Runtime tested under Xvfb: the property
+is set on enter and cleared on exit and on unmanage.
+
+## Download
+
+* [dwm-fullscreenhook-6.8.diff](dwm-fullscreenhook-6.8.diff)
+
+## Author
+
+* Daniel Guihot - [daniel@guihot.net](mailto:daniel@guihot.net)