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SETDEV IOL= Alter IOList of Open Channel

Format

SETDEV (chan) IOL= iolref$ [: {*|^|KEY }]

Where:

*

Optional indicator, changes the embedded IOList.

^

Optional indicator for changing the alternate IOList.

chan

Channel or logical file number.

iolref$

Valid IOList reference.

KEY

Optional indicator for changing the KEY IOList.

Description

Use the SETDEV IOL= directive to alter the various IOLists associated with a currently open channel. This will override the current IOList definition for a channel while the channel is open and will not physically alter the file.

Example

0020 iolist A$,B$,C$
0030 setdev (1)iol=0020:* ! Changes the embedded IOList
0040 setdev (1)iol=0020:^ ! Changes the alternate IOList
0050 setdev (1)iol=0020:key ! Changes the Key IOList
0060 X$=cpl("IOLIST A$,B$")
0070 setdev (1)iol=X$ ! Changes the default IOList