Generating Remote Control Events from my app

Question

I have two questions regarding Remote Control Events on iOS:

1. I know that music applications are registered to remote control events and then can receive such events from the iPhone's player widget. Let's say I want my app to fire such events, is that possible?
2. How does headphones for example generate those events?

Answer 1

I don't know if it possible for headphone events but with private API, you can send some events like: home button press, power button press or mouse events (not tested).

You should read this book:

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It'll be a hard work to make this works.

Take a look at GSEvent to know how to send an event to OS (iOS).

Edit: I've found 2 event types in GSEvent.GSEventType:

kGSEventHeadsetButtonDown = 1018,
kGSEventHeadsetButtonUp = 1019,

PS: - this use private API so it will be rejected if you post this app to AppStore.

Answer 2

Without private API, you cannot send remotecontrol event to your application.

The reason is we cannot create such an Event (UIEvent) to send out by using:

[[UIApplication sharedApplication] sendEvent:anEvent];

You can, however save a registered event then play back by calling the above-function.