Struct PortInfo 

pub struct PortInfo { /* private fields */ }

A GObject-derived object to express information of port.

A PortInfo is a GObject-derived object to express information of port. The call of port_info() returns the instance of object. The call of UserClientExtManual::create_port() and UserClientExt::update_port() requires the instance of object.

The object wraps struct snd_port_info in UAPI of Linux sound subsystem.

Properties

addr

The address of port.

Readable | Writeable | Construct Only

attrs

The attributes of port, a set of PortAttrFlag.

Readable | Writeable

caps

The capabilities of port, a set of PortCapFlag.

Readable | Writeable

midi-channels

The number of channels per MIDI port.

Readable | Writeable

midi-voices

The number of voices per MIDI port.

Readable | Writeable

name

The name of port.

Readable | Writeable

queue-id

The numeric ID of queue to update time stamp when tstamp-overwrite is set to True. One of SpecificQueueId is available as well.

Readable | Writeable

read-users

The current number of subscribers to read.

Readable

synth-voices

The number of voices per synth port.

Readable | Writeable

tstamp-mode

The mode of time stamp. This is effective when the tstamp-overwrite is enabled.

Readable | Writeable

tstamp-overwrite

The mode whether to overwrite time stamp for event when the event is delivered from the port.

Readable | Writeable

write-users

The current number of subscribers to write.

Readable

Implements

PortInfoExt

GLib type: GObject with reference counted clone semantics.

Implementations

impl PortInfo

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

pub fn new() -> PortInfo

Allocate and return an instance of PortInfo.

Returns

An instance of PortInfo.

Trait Implementations

impl Clone for PortInfo

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 PortInfo

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

Formats the value using the given formatter.

impl Default for PortInfo

fn default() -> Self

Returns the “default value” for a type.

impl HasParamSpec for PortInfo

type ParamSpec = ParamSpecObject

type SetValue = PortInfo

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

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

fn param_spec_builder() -> Self::BuilderFn

impl Hash for PortInfo

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 Ord for PortInfo

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 PortInfo

type Parent = Object

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

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 PortInfo

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 PortInfo

fn static_type() -> Type

Returns the type identifier of Self.

impl Eq for PortInfo