Struct Card 

pub struct Card { /* private fields */ }

An GObject-derived object to express sound card.

A Card is a GObject-derived object to express sound card. Applications use the instance of object to manipulate functionalities on sound card. After the call of CardExt::open() for the numeric ID of sound card, the object maintains file descriptor till object destruction.

Properties

devnode

The full path to special file of control character device.

Readable

subscribed

Whether to be subscribed for event.

Readable

Signals

handle-disconnection

Emitted when the sound card is not available anymore due to unbinding driver or hot unplugging. The owner of this object should call GObject::Object::unref() as quickly as possible to be going to release ALSA control character device.

handle-elem-event

Emitted when event occurs for any element.

Implements

CardExt, CardExtManual

GLib type: GObject with reference counted clone semantics.

Implementations

impl Card

pub const NONE: Option<&'static Card> = None

pub fn new() -> Card

Allocate and return an instance of Card.

Returns

An instance of Card.

Trait Implementations

impl Clone for Card

fn clone(&self) -> Self

Makes a clone of this shared reference.

This increments the strong reference count of the object. Dropping the object will decrement it again.

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

Performs copy-assignment from source.

impl Debug for Card

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

Formats the value using the given formatter.

impl Default for Card

fn default() -> Self

Returns the “default value” for a type.

impl HasParamSpec for Card

type ParamSpec = ParamSpecObject

type SetValue = Card

Preferred value to be used as setter for the associated ParamSpec.

type BuilderFn = fn(&str) -> ParamSpecObjectBuilder<'_, Card>

fn param_spec_builder() -> Self::BuilderFn

impl Hash for Card

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

where H: Hasher,

Hashes the memory address of this object.

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<T: CardImpl> IsSubclassable<T> for Card

fn class_init(class: &mut Class<Self>)

Override the virtual methods of this class for the given subclass and do other class initialization.

fn instance_init(instance: &mut InitializingObject<T>)

Instance specific initialization.

impl Ord for Card

fn cmp(&self, other: &Self) -> Ordering

Comparison for two GObjects.

Compares the memory addresses of the provided objects.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl ParentClassIs for Card

type Parent = Object

impl<OT: ObjectType> PartialEq<OT> for Card

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

Equality for two GObjects.

Two GObjects are equal if their memory addresses are equal.

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<OT: ObjectType> PartialOrd<OT> for Card

fn partial_cmp(&self, other: &OT) -> Option<Ordering>

Partial comparison for two GObjects.

Compares the memory addresses of the provided objects.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl StaticType for Card

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for Card