Nrequired

Type: SHORT

Returns:        0 or the number of characters required for a valid barcode of the current type. 0 indicates any number of characters permitted.

Read only. Do not set this property. The value of this parameter can be determined following the setting of the code type

The value returned depends on the current setting for AutoParity - ie. the value specifies the number of characters that need to be provided by the user.

 

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Pattern