Struct async_std_linux_video::Control

pub struct Control { /* private fields */ }

The control access interface

Methods from Deref<Target = QueryExtCtrl>

pub fn name(&self) -> &str

Control name

pub fn is_menu(&self) -> bool

pub fn has_payload(&self) -> bool

pub fn dims(&self) -> &[u32]

The size of each dimension

pub fn size(&self) -> u32

Size of value in bytes

pub fn id(&self) -> u32

Control identifier

pub fn type_(&self) -> CtrlType

Control type

pub fn min(&self) -> i64

Minimum value, inclusive

This field gives a lower bound for the control.

pub fn max(&self) -> i64

Maximum value, inclusive

This field gives an upper bound for the control

pub fn step(&self) -> u64

This field gives a step size for the control

pub fn default(&self) -> i64

Default value of control

The default value of a CtrlType::Integer, CtrlType::Boolean, CtrlType::BitMask, CtrlType::Menu or CtrlType::IntegerMenu control. Not valid for other types of controls

pub fn flags(&self) -> CtrlFlag

Control flags

pub fn elem_size(&self) -> u32

The size of the value in bytes

pub fn elems(&self) -> u32

The number of elements in the N-dimensional array

Trait Implementations

impl AsRef<QueryExtCtrl> for Control

fn as_ref(&self) -> &QueryExtCtrl

Converts this type into a shared reference of the (usually inferred) input type.

impl Deref for Control

type Target = QueryExtCtrl

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl Display for Control

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

Formats the value using the given formatter.