IOcrEngine is a wrapper for different OCR engines. Each engine contains additional features and functionalities that can be queried and updated using the IOcrSettingManager interface.
Obtain an instance of the IOcrSettingManager associated with an engine through the IOcrEngine.SettingManager property.
Use the IOcrSettingManager.GetSettingNames and IOcrSettingManager.GetSettingDescriptor methods to programmatically obtain setting names, value types and ranges.
Alternatively consult the following links for valid settings for each engine: