Shortcuts with Cmd leaking through to host OS

[leakycap]

Hi,

I am trying to run Linux in a virtual machine. However, some keybindings that require the mod key (Cmd) are passed through to the host OS, even if the keyboard is supposed to be captured (auto-capture on).

For instance, when I try to close a window in i3 using shift+mod+q, macOS picks it up as the keybinding for logging out, and the window in the virtual machine is not closed.

I am using left Cmd for these bindings, but switched the Host key to right Cmd, to no avail.

I would like the keyboard to stay captured and not leak through to the host OS, unless I press the Host key. What can/must I do?

Thanks!

Host OS: macOS 10.13, with extension pack
Guest OS: Manjaro i3, with guest modules

[socratis]

There are two shortcuts (key bindings) that will always be captured by the host OSX; Cmd(+Shift)+Q and Cmd(+Shift)+H. Basically what's on the Application menu. They are reserved, and for a good reason. The reservation is done at the Qt level, not sure if VirtualBox can do anything to bypass that.

There was one short period during a beta, where you'd press LeftCmd+Q in an OSX guest, and it actually acted as a Cmd+Q inside the guest! And then you'd press RightCmd+Q (RightCmd being the HostKey) and it would quit the VM! Perfect!

It turned out to be a bug...

[leakycap]

Shame that those are reserved. Guess I'll have to switch mod to Alt, or switch Q and H bindings in particular to use Alt in lieu of Cmd, which I think should be possible(?).

Thanks for your reply and explanation