Struct AudioOutputUnitMIDICallbacks

#[repr(C)]
pub struct AudioOutputUnitMIDICallbacks {
    pub userData: *mut c_void,
    pub MIDIEventProc: unsafe extern "C-unwind" fn(*mut c_void, u32, u32, u32, u32),
    pub MIDISysExProc: unsafe extern "C-unwind" fn(*mut c_void, NonNull<u8>, u32),
}

Available on crate feature AudioUnitProperties only.

For inter-app audio, callbacks for receiving MIDI messages.

The supplied callback functions are called from the realtime rendering thread, before each render cycle, to provide any incoming MIDI messages.

See also Apple’s documentation

Fields

userData: *mut c_void

MIDIEventProc: unsafe extern "C-unwind" fn(*mut c_void, u32, u32, u32, u32)

MIDISysExProc: unsafe extern "C-unwind" fn(*mut c_void, NonNull<u8>, u32)

Trait Implementations

impl Clone for AudioOutputUnitMIDICallbacks

fn clone(&self) -> AudioOutputUnitMIDICallbacks

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for AudioOutputUnitMIDICallbacks

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Encode for AudioOutputUnitMIDICallbacks

const ENCODING: Encoding

The Objective-C type-encoding for this type.

impl PartialEq for AudioOutputUnitMIDICallbacks

fn eq(&self, other: &AudioOutputUnitMIDICallbacks) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl RefEncode for AudioOutputUnitMIDICallbacks

const ENCODING_REF: Encoding

The Objective-C type-encoding for a reference of this type.

impl Copy for AudioOutputUnitMIDICallbacks

impl StructuralPartialEq for AudioOutputUnitMIDICallbacks