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bug#14794: 24.3.50; `w32-register-hot-key' does not work on Windows 7 64

From: martin rudalics
Subject: bug#14794: 24.3.50; `w32-register-hot-key' does not work on Windows 7 64-bit
Date: Fri, 12 Jul 2013 10:20:53 +0200

> Turns out it does make a difference.  This documentation page:
> explicitly says that the behavior of the underlying API has changed
> since XP: if the hot key is already registered, the API now fails
> instead of replacing the old registration with the new.  And Alt+TAB
> is hooked by the Windows Explorer.  And indeed, on Windows 7 I see
> that the call to RegisterHotKey API consistently fails with an error
> code which says "Hot key is already registered".
> Unless someone knows a way around this (I searched for it, but didn't
> find any solutions, only complaints), I guess this will remain a
> "known bug".

From what I read on such systems an application that does not have
registered a key itself is allowed to unregister it only if it is
certified in some way and resides in Program Files.


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