HelpPC 2.10 Quick Reference Utility Copyright 1991 David Jurgens

                       MSC: int umask( int permission )

       - prototype in io.h, sys\types.h, sys\stat.h

       - changes permision in which a file may be accessed
       - permission    = S_IWRITE      write is forbidden
                       = S_IREAD       read is forbidden  (ignored by DOS)
                       = S_IWRITE | S_IREAD  no reading or writing

       - returns previous permission value

Esc or Alt-X to exit umask Home/PgUp/PgDn/End ←↑↓→