Category: printer enhancements

INT 2F - PRINDIR v9.0 - SET LOCK FILENAME

	AX = 7F04h
	CX:DX -> ASCIZ name of lock file
Return: AX = status
	    0000h successful
	    FFFFh invalid device number
SeeAlso: AX=7F00h"PRINDIR",AX=7F01h"PRINDIR",AX=7F03h"PRINDIR"
SeeAlso: AX=7F05h,AX=7F06h,AX=7F08h,AX=7F0Ah,AX=7F0Bh