Callbacks in Applications - MATLAB & Simulink (original) (raw)
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If you have a user interface that executes many callbacks through the MATLAB® engine, force these callbacks to be evaluated in the context of the base workspace. Use evalin to specify the base workspace for evaluating the callback expression. For example:
engEvalString(ep,"evalin('base', expression)")
Specifying the base workspace ensures MATLAB processes the callback correctly and returns results for that call.
This advice does not apply to computational applications that do not execute callbacks.