MIDIReadBlock

Declaration

typealias MIDIReadBlock = (UnsafePointer<MIDIPacketList>, UnsafeMutableRawPointer?) -> Void

Parameters

• pktlist:

  The incoming MIDI message(s).

• srcConnRefCon:

  A refCon you passed to MIDIPortConnectSource, which identifies the source of the data.

Discussion

This is a callback block through which a client receives incoming MIDI messages.

A MIDIReadBlock is passed to the MIDIInputPortCreateWithBlock and MIDIDestinationCreateWithBlock functions. The CoreMIDI framework will create a high-priority receive thread on your client’s behalf, and from that thread, your MIDIReadProc will be called when incoming MIDI messages arrive.

See Also

Deprecated Functions

• MIDIInputPortCreate(_:_:_:_:_:)
• MIDIInputPortCreateWithBlock(_:_:_:_:)
• MIDISourceCreate(_:_:_:)
• MIDIDestinationCreate(_:_:_:_:_:)
• MIDIDestinationCreateWithBlock(_:_:_:_:)
• MIDIPacketListInit(_:)
• MIDIPacketListAdd(_:_:_:_:_:_:)
• MIDISend(_:_:_:)
• MIDIReceived(_:_:)
• MIDIReadProc