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HID Utils and queues

Hi,
Does any know of any examples using the queuing mechanism using the HID
utilities . I can see the the create & remove functions, which make sense,
but

// returns true if an event is avialable for the element and fills out
*pHIDEvent structure, returns false otherwise
// pHIDEvent is a poiner to a IOHIDEventStruct, using void here for
compatibility, users can cast a required
unsigned char HIDGetEvent (pRecDevice pDevice, void * pHIDEvent);

IOHIDEventStruct any ideas where I've searched about for it, nothing yet, I
guess from one of these I can get back to recElement or something which
tells what happened, who & when ??, as I would like to use this from CFM
???.

I guess just calling HIDGetEvent to swallow up the events ??,

Thanks
Mark.
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