Applies the auto-state (AS) entries of the state's configuration whose Event is usageEvent:
each listed group's usage categories give a recommended state, and a group is ON only when all its recommendations are.
public PdfOptionalContentState ApplyAutoStates(PdfOptionalContentState state, PdfOptionalContentEvent usageEvent, PdfOptionalContentUsageContext context)
The current states.
View when displaying, Print or Export for the duration of those operations.
The external factors: zoom, language, user. A category whose factor is not supplied recommends nothing.
ISO 32000-2 §8.11.4.4 and §8.11.4.5. Categories: View, Print, Export (the usage's state; Print without PrintState leaves the group unchanged), Zoom (ON when min ≤ zoom < max), User (ON on an exact name match), Language (ON on an exact match; else, when no group of the entry matches exactly, ON for partial matches that are Preferred; otherwise OFF).