qb45qck.hlp (Table of Contents; Topic list)
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ERDEV and ERDEV$ Functions QuickSCREEN
  QuickSCREEN      Details      Example      Contents      Index
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ERDEV and ERDEV$ - error-trapping functions that provide
                   device-specific status information after an error
Syntax
  ERDEV
  ERDEV$
 
  ■ ERDEV is an integer function that returns an error code from the
    last device to return an error
  ■ ERDEV$ is a string function that returns the name of the device
    returning the error