From Tracker Software PDF SDK
e.app.prefsChanged event with specified set of change-bits.
HRESULT FireAppPrefsChanged2([in] IBitSet* pChangeFlags);
- [in] Pointer to IBitSet that contains necessary change-bits. For set of supported change-bits look to: PXV_AppPrefsChanges.
Returns S_OK if operation was successful or error code in other cases.