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Fri, 30 Apr 2021 10:05:50 +0200 (CEST) Date: Fri, 30 Apr 2021 10:05:50 +0200 From: 'Gerd Hoffmann ' To: gustavo@noronha.eti.br Subject: Re: [PATCH 1/2] ui/cocoa: capture all keys and combos when mouse is grabbed Message-ID: <20210430080550.twoujiljpcskvcla@sirius.home.kraxel.org> References: <20210429234705.83206-1-gustavo@noronha.eti.br> <20210429234705.83206-2-gustavo@noronha.eti.br> MIME-Version: 1.0 In-Reply-To: <20210429234705.83206-2-gustavo@noronha.eti.br> X-Scanned-By: MIMEDefang 2.84 on 10.5.11.22 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=kraxel@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Received-SPF: pass client-ip=216.205.24.124; envelope-from=kraxel@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -29 X-Spam_score: -3.0 X-Spam_bar: --- X-Spam_report: (-3.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.22, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: 'Peter Maydell ' , qemu-devel@nongnu.org, 'Markus Armbruster ' Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Thu, Apr 29, 2021 at 08:47:04PM -0300, gustavo@noronha.eti.br wrote: > From: Gustavo Noronha Silva > > Applications such as Gnome may use Alt-Tab and Super-Tab for different > purposes, some use Ctrl-arrows so we want to allow qemu to handle > everything when it captures the mouse/keyboard. > > However, Mac OS handles some combos like Command-Tab and Ctrl-arrows > at an earlier part of the event handling chain, not letting qemu see it. > > We add a global Event Tap that allows qemu to see all events when the > mouse is grabbed. Note that this requires additional permissions. > > See: > > https://developer.apple.com/documentation/coregraphics/1454426-cgeventtapcreate?language=objc#discussion > https://support.apple.com/en-in/guide/mac-help/mh32356/mac Looks all sensible to me, I'd like to have the opinion from the MacOS experts for this one though. thanks, Gerd