* Invert a rational. * @param q value * @return 1 / q */

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Active The pin is active - start up the worker thread

start pulling data

Add the object after position p p is still valid after the operation. AddAfter(NULL,x) adds x to the start - same as AddHead Return the po

Mirror images: Add the element or list after position p. p is still valid after the operation. AddBefore(NULL,x) adds x to the end - same

Add all the elements in *pList to the head of this list. Return TRUE if it all worked, FALSE if it didn't. If it fails some elements may have

Add this object to the head end of our list Return the new head position. */

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helper functions

given a specific media type, attempt a connection (includes checking that the type is acceptable to this pin)

enter flush state. Receives already blocked must override this if you have queued data or a worker thread

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--- CAMEvent -----------------------