macOS 10.13 or 10.15 on Windows 10 change resolution

[byron tang]

I installed macOS 10.13 on Windows10's PC with virtualbox 6.0.4 on October 30th. I can adjust the resolution. After upgrading to Virtualbox 6.0.14, I can't change the resolution with the command:

cd "C:\Program Files\Oracle\VirtualBox\"
VBoxManage setextradata "MV name" VBoxInternal2/EfiGraphicsResolution 1440×900

it is always 1024x768.

This is also the case with MacOS 10.15 on the same machine.

Tested on a MACBOOK, also using Virtual Box6.0.14, the resolution can not be modified.
I don't know if there are other people who have encountered such problems. Please teach me if you have any solutions. Thank you!

Byron

[socratis]

OSX guests are only supported on Apple hardware (which you do not have). I recently made the "OSX guests on non-Apple hardware" a Global post, which means it shows as first on every forum area, makes me wonder how come you missed it...

In the really rare case (0.001%) that this is actually an Apple computer, in which you have installed Windows, and you're trying to boot a legitimate OSX guest and not a Hackintosh, send me a PM and I'll remedy the situation. Be prepared to provide evidence in such a case.