Permission - Deny other process read specific file

[Allen Huang]

Hello,

I'd like to find out some methods like the MFC CFile::shareExclusive
The function can deny read and write access to all other processes
https://learn.microsoft.com/en-us/cp...-170#remarks-2


I only find QFileDevice::Permission, but it seems to only control the system file permission based on the login user
not deny other processes
https://doc.qt.io/qt-5/qfiledevice.html#Permission-enum


Hope someone can provide any ideas to do this