Struct AVAudioUnitSampler 

pub struct AVAudioUnitSampler { /* private fields */ }

Available on crate features AVAudioNode and AVAudioUnit and AVAudioUnitMIDIInstrument and AVAudioUnitSampler only.

Apple’s sampler audio unit.

An AVAudioUnit for Apple’s Sampler Audio Unit. The sampler can be configured by loading instruments from different types of files such as an aupreset, a DLS or SF2 sound bank, an EXS24 instrument, a single audio file, or an array of audio files.

The output is a single stereo bus.

See also Apple’s documentation

Implementations

impl AVAudioUnitSampler

pub unsafe fn loadSoundBankInstrumentAtURL_program_bankMSB_bankLSB_error( &self, bank_url: &NSURL, program: u8, bank_msb: u8, bank_lsb: u8, ) -> Result<(), Retained<NSError>>

loads a specific instrument from the specified sound bank

Parameter bankURL: URL for a Soundbank file. The file can be either a DLS bank (.dls) or a SoundFont bank (.sf2).

Parameter program: program number for the instrument to load

Parameter bankMSB: MSB for the bank number for the instrument to load. This is usually 0x79 for melodic instruments and 0x78 for percussion instruments.

Parameter bankLSB: LSB for the bank number for the instrument to load. This is often 0, and represents the “bank variation”.

Parameter outError: the status of the operation

This method reads from file and allocates memory, so it should not be called on a real time thread.

pub unsafe fn loadInstrumentAtURL_error( &self, instrument_url: &NSURL, ) -> Result<(), Retained<NSError>>

configures the sampler by loading the specified preset file.

Parameter instrumentURL: URL to the preset file or audio file

Parameter outError: the status of the operation

The file can be of one of the following types: Logic/GarageBand EXS24 instrument, the Sampler AU’s native aupreset, or an audio file (eg. .caf, .aiff, .wav, .mp3).

If an audio file URL is loaded, it will become the sole sample in a new default instrument. Any information contained in the file regarding its keyboard placement (e.g. root key, key range) will be used. This method reads from file and allocates memory, so it should not be called on a real time thread.

pub unsafe fn loadAudioFilesAtURLs_error( &self, audio_files: &NSArray<NSURL>, ) -> Result<(), Retained<NSError>>

configures the sampler by loading a set of audio files.

Parameter audioFiles: array of URLs for audio files to be loaded

Parameter outError: the status of the operation

The audio files are loaded into a new default instrument with each audio file placed into its own sampler zone. Any information contained in the audio file regarding their placement on the keyboard (e.g. root key, key range) will be used. This method reads from file and allocates memory, so it should not be called on a real time thread.

pub unsafe fn stereoPan(&self) -> c_float

adjusts the pan for all the notes played. Range: -100 -> +100 Default: 0

pub unsafe fn setStereoPan(&self, stereo_pan: c_float)

Setter for stereoPan.

pub unsafe fn overallGain(&self) -> c_float

adjusts the gain of all the notes played Range: -90.0 -> +12 db Default: 0 db

pub unsafe fn setOverallGain(&self, overall_gain: c_float)

Setter for overallGain.

pub unsafe fn masterGain(&self) -> c_float

👎Deprecated

adjusts the gain of all the notes played Range: -90.0 -> +12 db Default: 0 db

pub unsafe fn setMasterGain(&self, master_gain: c_float)

👎Deprecated

Setter for masterGain.

pub unsafe fn globalTuning(&self) -> c_float

adjusts the tuning of all the notes played. Range: -2400 -> +2400 cents Default: 0

pub unsafe fn setGlobalTuning(&self, global_tuning: c_float)

Setter for globalTuning.

impl AVAudioUnitSampler

Methods declared on superclass AVAudioUnitMIDIInstrument.

pub unsafe fn initWithAudioComponentDescription( this: Allocated<Self>, description: AudioComponentDescription, ) -> Retained<Self>

Available on crate feature objc2-audio-toolbox and non-watchOS only.

Initialize the node with the component description for an AUv2 Audio Unit.

• Parameter description: audio component description structure that describes the audio component of type kAudioUnitType_MusicDevice or kAudioUnitType_RemoteInstrument.

• note: To load AUv3 audio units (or any audio unit asynchronously), use the class method AVAudioUnit/instantiateWithComponentDescription:options:completionHandler: instead.

impl AVAudioUnitSampler

Methods declared on superclass NSObject.

pub unsafe fn init(this: Allocated<Self>) -> Retained<Self>

pub unsafe fn new() -> Retained<Self>

Methods from Deref<Target = AVAudioUnitMIDIInstrument>

pub unsafe fn startNote_withVelocity_onChannel( &self, note: u8, velocity: u8, channel: u8, )

Sends a MIDI Note On event to the instrument

• Parameters:
• note: the note number (key) to play. Range: 0 -> 127
• velocity: specifies the volume with which the note is played. Range: 0 -> 127
• channel: the channel number to which the event is sent. Range: 0 -> 15

pub unsafe fn stopNote_onChannel(&self, note: u8, channel: u8)

Sends a MIDI Note Off event to the instrument

• Parameters:
• note: the note number (key) to stop. Range: 0 -> 127
• channel: the channel number to which the event is sent. Range: 0 -> 15

pub unsafe fn sendController_withValue_onChannel( &self, controller: u8, value: u8, channel: u8, )

Sends a MIDI controller event to the instrument.

• Parameters:
• controller: a standard MIDI controller number. Range: 0 -> 127
• value: value for the controller. Range: 0 -> 127
• channel: the channel number to which the event is sent. Range: 0 -> 15

pub unsafe fn sendPitchBend_onChannel(&self, pitchbend: u16, channel: u8)

Sends a MIDI controller event to the instrument.

• Parameters:
• controller: a standard MIDI controller number. Range: 0 -> 127
• value: value for the controller. Range: 0 -> 127
• channel: the channel number to which the event is sent. Range: 0 -> 15

pub unsafe fn sendPressure_onChannel(&self, pressure: u8, channel: u8)

Sends MIDI channel pressure event to the instrument.

• Parameters:
• pressure: value of the pressure. Range: 0 -> 127
• channel: the channel number to which the event is sent. Range: 0 -> 15

pub unsafe fn sendPressureForKey_withValue_onChannel( &self, key: u8, value: u8, channel: u8, )

Sends MIDI Polyphonic key pressure event to the instrument

• Parameters:
• key: the key (note) number to which the pressure event applies. Range: 0 -> 127
• value: value of the pressure. Range: 0 -> 127
• channel: the channel number to which the event is sent. Range: 0 -> 15so

pub unsafe fn sendProgramChange_onChannel(&self, program: u8, channel: u8)

Sends MIDI Program Change event to the instrument

The instrument will be loaded from the bank that has been previous set by MIDI Bank Select controller messages (0 and 31). If none has been set, bank 0 will be used.

• Parameters:
• program: the program number. Range: 0 -> 127
• channel: the channel number to which the event is sent. Range: 0 -> 15

pub unsafe fn sendProgramChange_bankMSB_bankLSB_onChannel( &self, program: u8, bank_msb: u8, bank_lsb: u8, channel: u8, )

Sends a MIDI Program Change and Bank Select events to the instrument

• Parameters:
• program: specifies the program (preset) number within the bank to load. Range: 0 -> 127
• bankMSB: specifies the most significant byte value for the bank to select. Range: 0 -> 127
• bankLSB: specifies the least significant byte value for the bank to select. Range: 0 -> 127
• channel: the channel number to which the event is sent. Range: 0 -> 15

pub unsafe fn sendMIDIEvent_data1_data2( &self, midi_status: u8, data1: u8, data2: u8, )

Sends a MIDI event which contains two data bytes to the instrument.

• Parameters:
• midiStatus: the STATUS value of the MIDI event
• data1: the first data byte of the MIDI event
• data2: the second data byte of the MIDI event.

pub unsafe fn sendMIDIEvent_data1(&self, midi_status: u8, data1: u8)

Sends a MIDI event which contains one data byte to the instrument.

• Parameters:
• midiStatus: the STATUS value of the MIDI event
• data1: the first data byte of the MIDI event

pub unsafe fn sendMIDISysExEvent(&self, midi_data: &NSData)

Sends a MIDI System Exclusive event to the instrument.

• Parameters:
• midiData: a NSData object containing the complete SysEx data including start(F0) and termination(F7) bytes.

pub unsafe fn sendMIDIEventList(&self, event_list: NonNull<MIDIEventList>)

Available on crate feature objc2-core-midi only.

Sends a MIDI event list to the instrument.

• Parameters:
• eventList: the MIDIEventList

Safety

event_list must be a valid pointer.

Methods from Deref<Target = AVAudioUnit>

pub unsafe fn loadAudioUnitPresetAtURL_error( &self, url: &NSURL, ) -> Result<(), Retained<NSError>>

Load an audio unit preset.

Parameter url: NSURL of the .aupreset file.

Parameter outError: A pointer to a NSError object

If the .aupreset file cannot be successfully loaded, an error is returned.

pub unsafe fn audioComponentDescription(&self) -> AudioComponentDescription

Available on crate feature objc2-audio-toolbox and non-watchOS only.

AudioComponentDescription of the underlying audio unit.

pub unsafe fn audioUnit(&self) -> AudioUnit

Available on crate feature objc2-audio-toolbox and non-watchOS only.

Reference to the underlying audio unit.

A reference to the underlying audio unit is provided so that parameters that are not exposed by AVAudioUnit subclasses can be modified using the AudioUnit C API.

No operations that may conflict with state maintained by the engine should be performed directly on the audio unit. These include changing initialization state, stream formats, channel layouts or connections to other audio units.

pub unsafe fn AUAudioUnit(&self) -> Retained<AUAudioUnit>

Available on crate feature objc2-audio-toolbox and non-watchOS only.

An AUAudioUnit wrapping or underlying the implementation’s AudioUnit.

This provides an AUAudioUnit which either wraps or underlies the implementation’s AudioUnit, depending on how that audio unit is packaged. Applications can interact with this AUAudioUnit to control custom properties, select presets, change parameters, etc.

As with the audioUnit property, no operations that may conflict with state maintained by the engine should be performed directly on the audio unit. These include changing initialization state, stream formats, channel layouts or connections to other audio units.

pub unsafe fn name(&self) -> Retained<NSString>

Name of the audio unit.

pub unsafe fn manufacturerName(&self) -> Retained<NSString>

Manufacturer name of the audio unit.

pub unsafe fn version(&self) -> NSUInteger

Version number of the audio unit.

Methods from Deref<Target = AVAudioNode>

pub unsafe fn reset(&self)

Clear a unit’s previous processing state.

pub unsafe fn inputFormatForBus( &self, bus: AVAudioNodeBus, ) -> Retained<AVAudioFormat>

Available on crate features AVAudioFormat and AVAudioTypes only.

Obtain an input bus’s format.

pub unsafe fn outputFormatForBus( &self, bus: AVAudioNodeBus, ) -> Retained<AVAudioFormat>

Available on crate features AVAudioFormat and AVAudioTypes only.

Obtain an output bus’s format.

pub unsafe fn nameForInputBus( &self, bus: AVAudioNodeBus, ) -> Option<Retained<NSString>>

Available on crate feature AVAudioTypes only.

Return the name of an input bus.

pub unsafe fn nameForOutputBus( &self, bus: AVAudioNodeBus, ) -> Option<Retained<NSString>>

Available on crate feature AVAudioTypes only.

Return the name of an output bus.

pub unsafe fn installTapOnBus_bufferSize_format_block( &self, bus: AVAudioNodeBus, buffer_size: AVAudioFrameCount, format: Option<&AVAudioFormat>, tap_block: AVAudioNodeTapBlock, )

Available on crate features AVAudioBuffer and AVAudioFormat and AVAudioTime and AVAudioTypes and block2 only.

Create a “tap” to record/monitor/observe the output of the node.

Parameter bus: the node output bus to which to attach the tap

Parameter bufferSize: the requested size of the incoming buffers in sample frames. Supported range is [100, 400] ms.

Parameter format: If non-nil, attempts to apply this as the format of the specified output bus. This should only be done when attaching to an output bus which is not connected to another node; an error will result otherwise. The tap and connection formats (if non-nil) on the specified bus should be identical. Otherwise, the latter operation will override any previously set format.

Parameter tapBlock: a block to be called with audio buffers

Only one tap may be installed on any bus. Taps may be safely installed and removed while the engine is running.

Note that if you have a tap installed on AVAudioOutputNode, there could be a mismatch between the tap buffer format and AVAudioOutputNode’s output format, depending on the underlying physical device. Hence, instead of tapping the AVAudioOutputNode, it is advised to tap the node connected to it.

E.g. to capture audio from input node:

AVAudioEngine *engine = [[AVAudioEngine alloc] init];
AVAudioInputNode *input = [engine inputNode];
AVAudioFormat *format = [input outputFormatForBus: 0];
[input installTapOnBus: 0 bufferSize: 8192 format: format block: ^(AVAudioPCMBuffer *buf, AVAudioTime *when) {
// ‘buf' contains audio captured from input node at time 'when'
}];
....
// start engine

Safety

tap_block must be a valid pointer.

pub unsafe fn removeTapOnBus(&self, bus: AVAudioNodeBus)

Available on crate feature AVAudioTypes only.

Destroy a tap.

Parameter bus: the node output bus whose tap is to be destroyed

pub unsafe fn engine(&self) -> Option<Retained<AVAudioEngine>>

Available on crate feature AVAudioEngine only.

The engine to which the node is attached (or nil).

pub unsafe fn numberOfInputs(&self) -> NSUInteger

The node’s number of input busses.

pub unsafe fn numberOfOutputs(&self) -> NSUInteger

The node’s number of output busses.

pub unsafe fn lastRenderTime(&self) -> Option<Retained<AVAudioTime>>

Available on crate feature AVAudioTime only.

Obtain the time for which the node most recently rendered.

Will return nil if the engine is not running or if the node is not connected to an input or output node.

pub unsafe fn AUAudioUnit(&self) -> Retained<AUAudioUnit>

Available on crate feature objc2-audio-toolbox and non-watchOS only.

An AUAudioUnit wrapping or underlying the implementation’s AudioUnit.

This provides an AUAudioUnit which either wraps or underlies the implementation’s AudioUnit, depending on how that audio unit is packaged. Applications can interact with this AUAudioUnit to control custom properties, select presets, change parameters, etc.

No operations that may conflict with state maintained by the engine should be performed directly on the audio unit. These include changing initialization state, stream formats, channel layouts or connections to other audio units.

pub unsafe fn latency(&self) -> NSTimeInterval

The processing latency of the node, in seconds.

This property reflects the delay between when an impulse in the audio stream arrives at the input vs. output of the node. This should reflect the delay due to signal processing (e.g. filters, FFT’s, etc.), not delay or reverberation which is being applied as an effect. A value of zero indicates either no latency or an unknown latency.

pub unsafe fn outputPresentationLatency(&self) -> NSTimeInterval

The maximum render pipeline latency downstream of the node, in seconds.

This describes the maximum time it will take for the audio at the output of a node to be presented. For instance, the output presentation latency of the output node in the engine is:

• zero in manual rendering mode
• the presentation latency of the device itself when rendering to an audio device (see AVAudioIONode(presentationLatency)) The output presentation latency of a node connected directly to the output node is the output node’s presentation latency plus the output node’s processing latency (see latency).

For a node which is exclusively in the input node chain (i.e. not connected to engine’s output node), this property reflects the latency for the output of this node to be presented at the output of the terminating node in the input chain.

A value of zero indicates either an unknown or no latency.

Note that this latency value can change as the engine is reconfigured (started/stopped, connections made/altered downstream of this node etc.). So it is recommended not to cache this value and fetch it whenever it’s needed.

Methods from Deref<Target = NSObject>

pub fn doesNotRecognizeSelector(&self, sel: Sel) -> !

Handle messages the object doesn’t recognize.

See Apple’s documentation for details.

Methods from Deref<Target = AnyObject>

pub fn class(&self) -> &'static AnyClass

Dynamically find the class of this object.

Panics

May panic if the object is invalid (which may be the case for objects returned from unavailable init/new methods).

Example

Check that an instance of NSObject has the precise class NSObject.

use objc2::ClassType;
use objc2::runtime::NSObject;

let obj = NSObject::new();
assert_eq!(obj.class(), NSObject::class());

pub unsafe fn get_ivar<T>(&self, name: &str) -> &T

where T: Encode,

👎Deprecated: this is difficult to use correctly, use Ivar::load instead.

Use Ivar::load instead.

Safety

The object must have an instance variable with the given name, and it must be of type T.

See Ivar::load_ptr for details surrounding this.

pub fn downcast_ref<T>(&self) -> Option<&T>

where T: DowncastTarget,

Attempt to downcast the object to a class of type T.

This is the reference-variant. Use Retained::downcast if you want to convert a retained object to another type.

Mutable classes

Some classes have immutable and mutable variants, such as NSString and NSMutableString.

When some Objective-C API signature says it gives you an immutable class, it generally expects you to not mutate that, even though it may technically be mutable “under the hood”.

So using this method to convert a NSString to a NSMutableString, while not unsound, is generally frowned upon unless you created the string yourself, or the API explicitly documents the string to be mutable.

See Apple’s documentation on mutability and on isKindOfClass: for more details.

Generic classes

Objective-C generics are called “lightweight generics”, and that’s because they aren’t exposed in the runtime. This makes it impossible to safely downcast to generic collections, so this is disallowed by this method.

You can, however, safely downcast to generic collections where all the type-parameters are AnyObject.

Panics

This works internally by calling isKindOfClass:. That means that the object must have the instance method of that name, and an exception will be thrown (if CoreFoundation is linked) or the process will abort if that is not the case. In the vast majority of cases, you don’t need to worry about this, since both root objects NSObject and NSProxy implement this method.

Examples

Cast an NSString back and forth from NSObject.

use objc2::rc::Retained;
use objc2_foundation::{NSObject, NSString};

let obj: Retained<NSObject> = NSString::new().into_super();
let string = obj.downcast_ref::<NSString>().unwrap();
// Or with `downcast`, if we do not need the object afterwards
let string = obj.downcast::<NSString>().unwrap();

Try (and fail) to cast an NSObject to an NSString.

use objc2_foundation::{NSObject, NSString};

let obj = NSObject::new();
assert!(obj.downcast_ref::<NSString>().is_none());

Try to cast to an array of strings.

use objc2_foundation::{NSArray, NSObject, NSString};

let arr = NSArray::from_retained_slice(&[NSObject::new()]);
// This is invalid and doesn't type check.
let arr = arr.downcast_ref::<NSArray<NSString>>();

This fails to compile, since it would require enumerating over the array to ensure that each element is of the desired type, which is a performance pitfall.

Downcast when processing each element instead.

use objc2_foundation::{NSArray, NSObject, NSString};

let arr = NSArray::from_retained_slice(&[NSObject::new()]);

for elem in arr {
    if let Some(data) = elem.downcast_ref::<NSString>() {
        // handle `data`
    }
}

Trait Implementations

impl AVAudio3DMixing for AVAudioUnitSampler

unsafe fn renderingAlgorithm(&self) -> AVAudio3DMixingRenderingAlgorithm

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Type of rendering algorithm used

unsafe fn setRenderingAlgorithm( &self, rendering_algorithm: AVAudio3DMixingRenderingAlgorithm, )

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Setter for renderingAlgorithm.

unsafe fn sourceMode(&self) -> AVAudio3DMixingSourceMode

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Controls how individual channels of an input bus are rendered

unsafe fn setSourceMode(&self, source_mode: AVAudio3DMixingSourceMode)

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Setter for sourceMode.

unsafe fn pointSourceInHeadMode(&self) -> AVAudio3DMixingPointSourceInHeadMode

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

In-head rendering choice for AVAudio3DMixingSourceModePointSource in AVAudio3DMixingRenderingAlgorithmAuto

unsafe fn setPointSourceInHeadMode( &self, point_source_in_head_mode: AVAudio3DMixingPointSourceInHeadMode, )

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Setter for pointSourceInHeadMode.

unsafe fn rate(&self) -> c_float

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Changes the playback rate of the input signal

unsafe fn setRate(&self, rate: c_float)

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Setter for rate.

unsafe fn reverbBlend(&self) -> c_float

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Controls the blend of dry and reverb processed audio

unsafe fn setReverbBlend(&self, reverb_blend: c_float)

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Setter for reverbBlend.

unsafe fn obstruction(&self) -> c_float

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Simulates filtering of the direct path of sound due to an obstacle

unsafe fn setObstruction(&self, obstruction: c_float)

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Setter for obstruction.

unsafe fn occlusion(&self) -> c_float

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Simulates filtering of the direct and reverb paths of sound due to an obstacle

unsafe fn setOcclusion(&self, occlusion: c_float)

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Setter for occlusion.

unsafe fn position(&self) -> AVAudio3DPoint

where Self: Sized + Message,

Available on crate features AVAudioMixing and AVAudioTypes only.

The location of the source in the 3D environment

unsafe fn setPosition(&self, position: AVAudio3DPoint)

where Self: Sized + Message,

Available on crate features AVAudioMixing and AVAudioTypes only.

Setter for position.

impl AVAudioMixing for AVAudioUnitSampler

unsafe fn destinationForMixer_bus( &self, mixer: &AVAudioNode, bus: AVAudioNodeBus, ) -> Option<Retained<AVAudioMixingDestination>>

where Self: Sized + Message,

Available on crate features AVAudioNode and AVAudioTypes and AVAudioMixing only.

Returns the AVAudioMixingDestination object corresponding to specified mixer node and its input bus

unsafe fn volume(&self) -> c_float

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Set a bus’s input volume

unsafe fn setVolume(&self, volume: c_float)

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Setter for volume.

impl AVAudioStereoMixing for AVAudioUnitSampler

unsafe fn pan(&self) -> c_float

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Set a bus’s stereo pan

unsafe fn setPan(&self, pan: c_float)

where Self: Sized + Message,

Available on crate feature AVAudioMixing only.

Setter for pan.

impl AsRef<AVAudioNode> for AVAudioUnitSampler

fn as_ref(&self) -> &AVAudioNode

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AVAudioUnit> for AVAudioUnitSampler

fn as_ref(&self) -> &AVAudioUnit

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AVAudioUnitMIDIInstrument> for AVAudioUnitSampler

fn as_ref(&self) -> &AVAudioUnitMIDIInstrument

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AVAudioUnitSampler> for AVAudioUnitSampler

fn as_ref(&self) -> &Self

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<AnyObject> for AVAudioUnitSampler

fn as_ref(&self) -> &AnyObject

Converts this type into a shared reference of the (usually inferred) input type.

impl AsRef<NSObject> for AVAudioUnitSampler

fn as_ref(&self) -> &NSObject

Converts this type into a shared reference of the (usually inferred) input type.

impl Borrow<AVAudioNode> for AVAudioUnitSampler

fn borrow(&self) -> &AVAudioNode

Immutably borrows from an owned value.

impl Borrow<AVAudioUnit> for AVAudioUnitSampler

fn borrow(&self) -> &AVAudioUnit

Immutably borrows from an owned value.

impl Borrow<AVAudioUnitMIDIInstrument> for AVAudioUnitSampler

fn borrow(&self) -> &AVAudioUnitMIDIInstrument

Immutably borrows from an owned value.

impl Borrow<AnyObject> for AVAudioUnitSampler

fn borrow(&self) -> &AnyObject

Immutably borrows from an owned value.

impl Borrow<NSObject> for AVAudioUnitSampler

fn borrow(&self) -> &NSObject

Immutably borrows from an owned value.

impl ClassType for AVAudioUnitSampler

const NAME: &'static str = "AVAudioUnitSampler"

The name of the Objective-C class that this type represents.

type Super = AVAudioUnitMIDIInstrument

The superclass of this class.

type ThreadKind = <<AVAudioUnitSampler as ClassType>::Super as ClassType>::ThreadKind

Whether the type can be used from any thread, or from only the main thread.

fn class() -> &'static AnyClass

Get a reference to the Objective-C class that this type represents.

fn as_super(&self) -> &Self::Super

Get an immutable reference to the superclass.

impl Debug for AVAudioUnitSampler

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

Formats the value using the given formatter.

impl Deref for AVAudioUnitSampler

type Target = AVAudioUnitMIDIInstrument

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Hash for AVAudioUnitSampler

fn hash<H: Hasher>(&self, state: &mut H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Message for AVAudioUnitSampler

fn retain(&self) -> Retained<Self>

where Self: Sized,

Increment the reference count of the receiver.

impl NSObjectProtocol for AVAudioUnitSampler

fn isEqual(&self, other: Option<&AnyObject>) -> bool

where Self: Sized + Message,

Check whether the object is equal to an arbitrary other object.

fn hash(&self) -> usize

where Self: Sized + Message,

An integer that can be used as a table address in a hash table structure.

fn isKindOfClass(&self, cls: &AnyClass) -> bool

where Self: Sized + Message,

Check if the object is an instance of the class, or one of its subclasses.

fn is_kind_of<T>(&self) -> bool

where T: ClassType, Self: Sized + Message,

👎Deprecated: use isKindOfClass directly, or cast your objects with AnyObject::downcast_ref

Check if the object is an instance of the class type, or one of its subclasses.

fn isMemberOfClass(&self, cls: &AnyClass) -> bool

where Self: Sized + Message,

Check if the object is an instance of a specific class, without checking subclasses.

fn respondsToSelector(&self, aSelector: Sel) -> bool

where Self: Sized + Message,

Check whether the object implements or inherits a method with the given selector.

fn conformsToProtocol(&self, aProtocol: &AnyProtocol) -> bool

where Self: Sized + Message,

Check whether the object conforms to a given protocol.

fn description(&self) -> Retained<NSObject>

where Self: Sized + Message,

A textual representation of the object.

fn debugDescription(&self) -> Retained<NSObject>

where Self: Sized + Message,

A textual representation of the object to use when debugging.

fn isProxy(&self) -> bool

where Self: Sized + Message,

Check whether the receiver is a subclass of the NSProxy root class instead of the usual NSObject.

fn retainCount(&self) -> usize

where Self: Sized + Message,

The reference count of the object.

impl PartialEq for AVAudioUnitSampler

fn eq(&self, other: &Self) -> 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 AVAudioUnitSampler

const ENCODING_REF: Encoding = <AVAudioUnitMIDIInstrument as ::objc2::RefEncode>::ENCODING_REF

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

impl DowncastTarget for AVAudioUnitSampler

impl Eq for AVAudioUnitSampler