From: Christian Linhart <chris@DemoRecorder.com>
Date: Fri, 22 Aug 2014 15:15:24 +0000 (+0200)
Subject: xinput: req GrabDeviceKey.modifier_device: altenum
X-Git-Url: http://git.demorecorder.com/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=20d642e7d1e594558b17722f3477d967ad66a2db;hp=20d642e7d1e594558b17722f3477d967ad66a2db;p=free-sw%2Fxcb%2Fproto

xinput: req GrabDeviceKey.modifier_device: altenum

add altenum ModifierDevice to field modifier_device for value UseXKeyboard

V2: patch revised according to info from Ran Benita about NULL and UseXKeyboard

spec and code:
http://cgit.freedesktop.org/xorg/lib/libXi/tree/specs/encoding.xml#n1147
http://cgit.freedesktop.org/xorg/proto/inputproto/tree/XI.h#n187
http://cgit.freedesktop.org/xorg/xserver/tree/Xi/grabdevk.c#n116

the following spec uses "NULL" instead of "UseXKeyboard":
http://cgit.freedesktop.org/xorg/proto/inputproto/tree/specs/XIproto.txt#n1213

The reason for NULL vs UseXKeyboard is: in the libXi function XUngrabDeviceKey,
the modifier_device arg is an XDevice pointer, and NULL means to use the
core X keyboard. But on the wire it is an integer, with 255 as a special
value.
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