Hello, How can I get the boot args in C++ or Objective-C on macOS without launching the nvram command tool? Take -arm64e_preview_abi for example. How can I check if it exists and if it's effective now or a reboot is needed for it to take effect. Thanks!

Hi, everyone! I want to know whether I can check my app is running on a virtual machine or not. If so, how can I do that in C++ or Objective-C? The code needs to support both Intel processors and Apple Silicon. Thanks! Leo

I know with Disk Arbitration framework, I can use DARegisterDiskMountApprovalCallback to prevent external disks from mounting. The disks includes thumb drive, external hard disk, etc., but there are many types of peripherals out there, like a usb wireless receiver or a USB ethernet adapter. Is there any other framework for us to use to enable/disable peripherals based on their I/O Registry properties? Thanks!