objc2_audio_toolbox

Struct MusicDeviceNoteParams

#[repr(C)]pub struct MusicDeviceNoteParams {
    pub argCount: u32,
    pub mPitch: f32,
    pub mVelocity: f32,
    pub mControls: [NoteParamsControlValue; 1],
}

Available on crate features AUComponent and MusicDevice only.

Expand description

Used to hold the value of the inParams parameter for the MusicDeviceStartNote function.

The generic version of this structure describes an arg count (which is the number of mControls values

1 for mPitch and 1 for mVelocity). So, argCount should at least be two. See MusicDeviceStdNoteParams for the common use case, as many audio unit instruments will not respond to control values provided in the start note function

The number of controls + 2 (for mPitch and mVelocity)

The pitch of the new note, typically specified using a MIDI note number (and a fractional pitch) within the range of 0 < 128. So 60 is middle C, 60.5 is middle C + 50 cents.

The velocity of the new note - this can be a fractional value - specified as MIDI (within the range of 0 < 128)

A variable length array with the number of elements: argCount - 2.

See also Apple’s documentation

Fields§

§argCount: u32§mPitch: f32§mVelocity: f32§mControls: [NoteParamsControlValue; 1]

Trait Implementations§

impl Clone for MusicDeviceNoteParams

fn clone(&self) -> MusicDeviceNoteParams

Returns a duplicate of the value. Read more

1.0.0 · Source§

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

Performs copy-assignment from source. Read more

impl Debug for MusicDeviceNoteParams

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

Formats the value using the given formatter. Read more

impl Encode for MusicDeviceNoteParams

const ENCODING: Encoding

The Objective-C type-encoding for this type.

impl PartialEq for MusicDeviceNoteParams

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

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

1.0.0 · Source§

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 MusicDeviceNoteParams

const ENCODING_REF: Encoding

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

impl Copy for MusicDeviceNoteParams

impl StructuralPartialEq for MusicDeviceNoteParams

Auto Trait Implementations§

impl Freeze for MusicDeviceNoteParams

impl RefUnwindSafe for MusicDeviceNoteParams

impl Send for MusicDeviceNoteParams

impl Sync for MusicDeviceNoteParams

impl Unpin for MusicDeviceNoteParams

impl UnwindSafe for MusicDeviceNoteParams

Blanket Implementations§

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)

Performs copy-assignment from self to dest. Read more

impl<T> EncodeArgument for T
where T: Encode,

const ENCODING_ARGUMENT: Encoding = T::ENCODING

The Objective-C type-encoding for this type.

impl<T> EncodeReturn for T
where T: Encode,

const ENCODING_RETURN: Encoding = T::ENCODING

The Objective-C type-encoding for this type.

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> AutoreleaseSafe for T
where T: ?Sized,