Support for Asynchronous Callback Messages
Derived messages of CSPP_AsyncCallbackMsg would need to store return values of an action VI in it message class attribute. Example:https://git.gsi.de/EE-LV/CSPP/CSPP_DN/CS_Workshop/tree/AsyncCBMsg/Actors/CSPP_InstrSim%20Messages/Get%20DC_Voltage%20Msg
The callback message would read the action VI's return values to be used as inputs for its own callback action VI. Example: https://git.gsi.de/EE-LV/CSPP/CSPP_DN/CS_Workshop/tree/AsyncCBMsg/Actors/CSPP_InstrSimCtrl%20Messages/DCVoltage-CB%20Msg.
When creating a callback message using the MassageMaker a dialog box could be display, so the developer can select the desired CS++ Message to inherit from. It an one to one association between return and own input parameters exist, the wiring could be dne automaticallay by the MM other wise the user would need to parse the return data manually.