Lexicals, F$DEVICE, Arguments
*Conan The Librarian
search_devnam Specifies the name of the device for which F$DEVICE is to search. The asterisk (*) and the percent sign (%) wildcard characters are allowed in the search_devnam argument. Specify the search_devnam argument as a character string expression. devclass Specifies the device class for which F$DEVICE is to search. Specify the devclass argument as a character string expression that corresponds to a valid device class name. See the DEVCLASS item in F$GETDVI for additional information. devtype Specifies the device type for which F$DEVICE is to search. Specify the devtype argument as a character string expression that corresponds to a valid type name. See the DEVTYPE item in F$GETDVI for additional information. NOTE Specifying a device type without specifying a device class will result in an error. stream-id A positive integer representing the search stream identification number. The search stream identification number is used to maintain separate search contexts when you use the F$DEVICE function more than once and when you supply different search criteria. If you use the F$DEVICE function more than once in a command procedure and if you also use different search criteria, specify stream-id arguments to identify each search separately. If the search criteria are changed in a call before the device name list is exhausted, the context will be reinitialized and the search will restart. If you omit the stream-id argument, the F$DEVICE function assumes an implicit single search stream. That is, the F$DEVICE function starts searching at the beginning each time you specify different search criteria.