Is it possible to set barcode orientation before the recognition?
It is possible to predefine barcode orientation before the recognition. Use BarcodeParams.Orientation property to set possible barcode orientation.
The value of this property is an OR superposition of the BarcodeOrientationEnum enumeration constants which denote the types of barcode orientation. For example, if it is set to BO_Left_To_Right | BO_Down_To_Top, FineReader Engine will presume that barcode blocks may be oriented either from left to right or from down to top, ignoring all other variants.
By default, this property is set to BO_Autodetect, i.e. FineReader Engine will detect the barcode orientation automatically.