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This is documentation for Caché & Ensemble. See the InterSystems IRIS version of this content.

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$DEVICE (ObjectScript)

Contains user-specified device status information.

Synopsis

$DEVICE
$D  

Description

$DEVICE can be used to record device status information. You can use the SET command to place a value in $DEVICE. By convention, this value should describe the outcome of an I/O operation as a 3-piece string, in the form:

standard_error,user_error,explanatory_text

By default, $DEVICE contains the null string.

See Also

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