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Data Dictionary Files (DDFs) are used by Pervasive PSQL and by a number of third-party applications to provide column-level access to Pervasive PSQL data. The ActiveX interface provides a number of methods to assist Pervasive PSQL developers in creating, reading, and modifying DDFs.
Most of the dictionary file handling involves the addition of new methods to the control. However, because previous versions of the ActiveX Data Source control were aware of data dictionaries, some changes have been made to the behavior of existing properties and methods. Backwards compatibility has been maintained, but some properties have either been expanded (such as RefreshLocations) or deprecated (such as FieldIndex and FieldName).
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