PTPDFViewCtrlPagePresentationModeDidChangeNotification
extern const NSNotificationName _Nonnull PTPDFViewCtrlPagePresentationModeDidChangeNotification
Posted when the PTPDFViewCtrl‘s page presentation mode changes.
The notification object is the PTPDFViewCtrl that posted the notification. The userInfo dictionary
contains an entry for the PTPDFViewCtrlPagePresentationModeUserInfoKey key with the new page
presentation mode.
PTPDFViewCtrlPagePresentationModeDidChangeNotification Constant Reference