[C#]
    static byte[] ExtractAdditionalDataFromAsyncState(TElPDFSecurityHandler Handler, TElDCAsyncState State);

[VB.NET]
    Shared Function ExtractAdditionalDataFromAsyncState(ByVal Handler As TElPDFSecurityHandler, ByVal State As TElDCAsyncState) As Byte()

[Pascal]
    class function ExtractAdditionalDataFromAsyncState(Handler : TElPDFSecurityHandler; State : TElDCAsyncState) : ByteArray;

[C++]
    static void ExtractAdditionalDataFromAsyncState(TElPDFSecurityHandler &Handler, TElDCAsyncState &State, std::vector<uint8_t> &OutResult);
    static void ExtractAdditionalDataFromAsyncState(TElPDFSecurityHandler *Handler, TElDCAsyncState *State, std::vector<uint8_t> &OutResult);

[PHP]
    string ExtractAdditionalDataFromAsyncState(TElPDFSecurityHandler $Handler, TElDCAsyncState $State)

[Java]
    static byte[] extractAdditionalDataFromAsyncState(TElPDFDocument> this, TElPDFSecurityHandler Handler, TElDCAsyncState State);