(TBarcode2D_MicorPDF417)
Specifies whether to use the optional ECI Descriptor in a MicroPDF417 barcode symbol, in order to efficiently encode a single Transformation ECI sequence at the start of barcode text.
property UseECIDescriptor: Boolean;
Because MicroPDF417 is intended for applications where symbol size is critical, it is expected that MicroPDF417 will frequently be used in conjunction with a Transformation ECI appropriate for the data requirements of the application. MicroPDF417 supports efficient encoding of a single Transformation ECI sequence at the start of each data stream by using an optional ECI Descriptor that can be encoded at the start of the first symbol of each MicroPDF417-encoded data stream. The property specifies whether to use the ECI Descriptor in a MicroPDF417 symbol.
This Transformation ECI co-exists with the Interpretative ECI (whether default or explicitly encoded) currently in effect, since Interpretative ECIs and Transformation ECIs have independent scopes.
Please use the escape sequence \e[<ECI_Number>] to place a Transformation ECI at the beginning of the barcode text (at the start of the symbol or at the start of the first symbol of a structured append series). If the property is set to true, the Transformation ECI sequence will be ecncoded as an ECI Descriptor. Otherwist, it will be encoded using the standard ECI encoding method.
See also the "Extended Channel Interpretation (ECI)" section in the "TBarcode2D_MicroPDF417" article.