VTPixelRotationSessionInvalidate(_:)
Tears down a pixel rotation session.
Declaration
func VTPixelRotationSessionInvalidate(_ session: VTPixelRotationSession)Parameters
- session:
The pixel rotation session to invalidate.
Discussion
When a pixel rotation session’s retain count reaches zero, the system automatically invalidates it. However, because other processes may retain a session, it can be hard to predict when the invalidation occurs. Calling this function ensures a deterministic, orderly teardown.