Question

I have an implementation of the RenderTone method for sound playback and from that method I want to call controller methods. I’m able to acces controller members fine like this:

InstrumentGridViewController *viewController = (InstrumentGridViewController *)inRefCon;
viewController->count = 7;

But what I want to do is call a method the same way. I tried this but it’s not working:

viewController->stopToneUnit;

My method implementation looks like this:

- (void) stopToneUnit{
    AudioOutputUnitStop(toneUnit);
    AudioUnitUninitialize(toneUnit);
    AudioComponentInstanceDispose(toneUnit);
    toneUnit = nil;
}

How should I call this method?

Answer 1

In Objective-C the syntax for sending messages is:

[viewController stopToneUnit];