IAudioVolumeLevel

audio_device_windows_sys::Windows::Win32::CoreAudio

Struct IAudioVolumeLevel

pub struct IAudioVolumeLevel(/* private fields */);

Implementations§

impl IAudioVolumeLevel

pub unsafe fn GetChannelCount(&self, pcchannels: *mut u32) -> HRESULT

pub unsafe fn GetLevelRange( &self, nchannel: u32, pfminleveldb: mut f32, pfmaxleveldb: mut f32, pfstepping: *mut f32, ) -> HRESULT

pub unsafe fn GetLevel(&self, nchannel: u32, pfleveldb: *mut f32) -> HRESULT

pub unsafe fn SetLevel( &self, nchannel: u32, fleveldb: f32, pguideventcontext: *mut Guid, ) -> HRESULT

pub unsafe fn SetLevelUniform( &self, fleveldb: f32, pguideventcontext: *mut Guid, ) -> HRESULT

pub unsafe fn SetLevelAllChannels( &self, alevelsdb: mut f32, cchannels: u32, pguideventcontext: mut Guid, ) -> HRESULT

Trait Implementations§

impl Clone for IAudioVolumeLevel

fn clone(&self) -> IAudioVolumeLevel

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

impl Debug for IAudioVolumeLevel

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

Formats the value using the given formatter. Read more

impl From<&IAudioVolumeLevel> for IPerChannelDbLevel

fn from(value: &IAudioVolumeLevel) -> Self

Converts to this type from the input type.

impl From<&IAudioVolumeLevel> for IUnknown

fn from(value: &IAudioVolumeLevel) -> Self

Converts to this type from the input type.

impl From<IAudioVolumeLevel> for IPerChannelDbLevel

fn from(value: IAudioVolumeLevel) -> Self

Converts to this type from the input type.

impl From<IAudioVolumeLevel> for IUnknown

fn from(value: IAudioVolumeLevel) -> Self

Converts to this type from the input type.

impl Interface for IAudioVolumeLevel

const IID: Guid

type Vtable = IAudioVolumeLevel_abi

unsafe fn vtable(&self) -> &Self::Vtable

Returns the vtable for the current interface.

unsafe fn assume_vtable<T>(&self) -> &<T as Interface>::Vtable
where T: Interface,

Returns the vtable for an assumed interface. The name comes from Box’s assume_init method as it assumes the vtable is implemented by the current interface’s vtable (e.g. a parent interface).

fn cast<T>(&self) -> Result<T, Error>
where T: Interface,

Attempts to cast the current interface to another interface using QueryInterface. The name cast is preferred to query because there is a WinRT method named query but not one named cast.

impl<'a> IntoParam<'a, IPerChannelDbLevel> for &'a IAudioVolumeLevel

fn into_param(self) -> Param<'a, IPerChannelDbLevel>

impl<'a> IntoParam<'a, IPerChannelDbLevel> for IAudioVolumeLevel

fn into_param(self) -> Param<'a, IPerChannelDbLevel>

impl<'a> IntoParam<'a, IUnknown> for &'a IAudioVolumeLevel

fn into_param(self) -> Param<'a, IUnknown>

impl<'a> IntoParam<'a, IUnknown> for IAudioVolumeLevel

fn into_param(self) -> Param<'a, IUnknown>

impl PartialEq for IAudioVolumeLevel

fn eq(&self, other: &IAudioVolumeLevel) -> 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 Eq for IAudioVolumeLevel

impl StructuralPartialEq for IAudioVolumeLevel

Auto Trait Implementations§

impl Freeze for IAudioVolumeLevel

impl RefUnwindSafe for IAudioVolumeLevel

impl !Send for IAudioVolumeLevel

impl !Sync for IAudioVolumeLevel

impl Unpin for IAudioVolumeLevel

impl UnwindSafe for IAudioVolumeLevel

Blanket Implementations§

impl<T> Abi for T
where T: Interface,

type Abi = *mut c_void

The abi representation of the implementing type. Read more

fn set_abi(&mut self) -> *mut <T as Abi>::Abi

Returns a pointer for setting the object’s value via an ABI call.

unsafe fn from_abi(abi: <T as Abi>::Abi) -> Result<T, Error>

Casts the ABI representation to a Rust object by taking ownership of the bits.

fn abi(&self) -> Self::Abi

Casts the Rust object to its ABI type without copying the object.

fn drop_param(_: &mut Param<'_, Self>)

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> 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<'a, T> IntoParam<'a, T> for T
where T: Abi,

fn into_param(self) -> Param<'a, T>

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.