CMBufferGetBooleanCallback
Callback that returns a Boolean value from a CMBuffer.
Declaration
typealias CMBufferGetBooleanCallback = (CMBuffer, UnsafeMutableRawPointer?) -> DarwinBooleanDiscussion
There is one callback of this type that can be provided to Creating Buffer Queues: isDataReady (optional).
Callback Parameters
- buf
The buffer being interrogated.
- refcon
The contextual data from the client (which may be
NULL).