Physical written-protected disk like SDCard can update the value of "Media Read-Only", may I ask if there is any API could modify this value when recognising a mounting event? I am trying to not allow erasing my USB when it is mounted with read-only permission, thank you.

I have multiple mounted volumes of USB and CD and DVD with read-only permission, it seems they are still erasable, any config or flag could manage this? Thanks.

hdiutil command line could get a list of disk images, may I ask if there is any API performing the same? thank you. liz@macos-12 ~ % hdiutil info framework : 623.100.1 driver : 623.100.1 ================================================ image-path : /Users/liz/Downloads/Skype-8.90.0.407.dmg image-alias : /Users/liz/Downloads/Skype-8.90.0.407.dmg shadow-path : <none> icon-path : <none> image-type : read-only disk image system-image : false blockcount : 2048080 blocksize : 512 writeable : false autodiskmount : TRUE removable : TRUE image-encrypted : false mounting user : liz mounting mode : <unknown> process ID : 20600 framework name : DiskImages2 /dev/disk2 GUID_partition_scheme /dev/disk2s1 <GUID> /Volumes/Skype

I am new to mac develop, sorry for the stupid question, is it possible to gray out item "Quit" from dock menu, I tried API applicationDockMenu which could allow me add customized items, but the dock menu default layout is still there, also I understand there is an API to cancel a quit operation via applicationShouldTerminate, appreciate it if any comments, thanks.