Hiding keyboard state

[Keith Packard]

Ran Benita <ran234 at gmail.com> writes:

> The QueryDeviceState request from xinput (XQueryDeviceState(3) in xlib)
> also exposes the logical state of the keys. This patch only touches the
> old QueryKeymap request. Is xinput not relevant for some reason? (There
> might also be similar request in xinput2 and XKB, I haven't checked).

I just hadn't thought of that, but yes, it's relevant. One simple answer
would be to always lie about this request (report no keys down
ever).

Alternatively, we could restrict this request to "special" applications
using the technique I've outlined for access to the testing extensions.

-- 
-keith
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