[comp.os.msdos.programmer] find first magic attributes

eric@mks.com (Eric Gisin) (06/29/90)

When you do a find first on a device like nul or con,
the attribute byte is 0x40. This is undocumented.
It is not in the interrupt list either.
Is this portable? It works on DOS 3.3 and DOS 4.0.
Is an attribute of 0x80 possible?