Struct HostCallbackInfo 

#[repr(C)]
pub struct HostCallbackInfo {
    pub hostUserData: *mut c_void,
    pub beatAndTempoProc: Option<unsafe extern "C-unwind" fn(*mut c_void, *mut f64, *mut f64) -> i32>,
    pub musicalTimeLocationProc: Option<unsafe extern "C-unwind" fn(*mut c_void, *mut u32, *mut f32, *mut u32, *mut f64) -> i32>,
    pub transportStateProc: Option<unsafe extern "C-unwind" fn(*mut c_void, *mut u8, *mut u8, *mut f64, *mut u8, *mut f64, *mut f64) -> i32>,
    pub transportStateProc2: Option<unsafe extern "C-unwind" fn(*mut c_void, *mut u8, *mut u8, *mut u8, *mut f64, *mut u8, *mut f64, *mut f64) -> i32>,
}

Contains the various callbacks for an audio unit to call

Any callback can be NULL.

See also Apple’s documentation

Fields

hostUserData: *mut c_void

beatAndTempoProc: Option<unsafe extern "C-unwind" fn(*mut c_void, *mut f64, *mut f64) -> i32>

musicalTimeLocationProc: Option<unsafe extern "C-unwind" fn(*mut c_void, *mut u32, *mut f32, *mut u32, *mut f64) -> i32>

transportStateProc: Option<unsafe extern "C-unwind" fn(*mut c_void, *mut u8, *mut u8, *mut f64, *mut u8, *mut f64, *mut f64) -> i32>

transportStateProc2: Option<unsafe extern "C-unwind" fn(*mut c_void, *mut u8, *mut u8, *mut u8, *mut f64, *mut u8, *mut f64, *mut f64) -> i32>

Trait Implementations

impl Clone for HostCallbackInfo

fn clone(&self) -> HostCallbackInfo

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for HostCallbackInfo

impl Debug for HostCallbackInfo

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

Formats the value using the given formatter.

impl Encode for HostCallbackInfo

const ENCODING: Encoding

The Objective-C type-encoding for this type.

impl PartialEq for HostCallbackInfo

fn eq(&self, other: &HostCallbackInfo) -> 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 HostCallbackInfo

const ENCODING_REF: Encoding

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

impl StructuralPartialEq for HostCallbackInfo