Enum AfPause

#[repr(i32)]
pub enum AfPause {
    Immediate = 0,
    Deferred = 1,
    Resume = 2,
}

Pause lens movements when in continuous autofocus mode.

This control has no effect except when in continuous autofocus mode (AfModeContinuous). It can be used to pause any lens movements while (for example) images are captured. The algorithm remains inactive until it is instructed to resume.

Variants

Immediate = 0

Pause the continuous autofocus algorithm immediately.

The autofocus algorithm is paused whether or not any kind of scan is underway. AfPauseState will subsequently report AfPauseStatePaused. AfState may report any of AfStateScanning, AfStateFocused or AfStateFailed, depending on the algorithm’s state when it received this control.

Deferred = 1

Pause the continuous autofocus algorithm at the end of the scan.

This is similar to AfPauseImmediate, and if the AfState is currently reporting AfStateFocused or AfStateFailed it will remain in that state and AfPauseState will report AfPauseStatePaused.

However, if the algorithm is scanning (AfStateScanning), AfPauseState will report AfPauseStatePausing until the scan is finished, at which point AfState will report one of AfStateFocused or AfStateFailed, and AfPauseState will change to AfPauseStatePaused.

Resume = 2

Resume continuous autofocus operation.

The algorithm starts again from exactly where it left off, and AfPauseState will report AfPauseStateRunning.

Trait Implementations

impl Clone for AfPause

fn clone(&self) -> AfPause

Returns a copy of the value.

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

Performs copy-assignment from source.

impl ControlEntry for AfPause

const ID: u32 = 39u32

impl Debug for AfPause

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

Formats the value using the given formatter.

impl From<AfPause> for ControlValue

fn from(val: AfPause) -> Self

Converts to this type from the input type.

impl From<AfPause> for i32

fn from(enum_value: AfPause) -> Self

Converts to this type from the input type.

impl PartialEq for AfPause

fn eq(&self, other: &AfPause) -> 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 TryFrom<ControlValue> for AfPause

type Error = ControlValueError

The type returned in the event of a conversion error.

fn try_from(value: ControlValue) -> Result<Self, Self::Error>

Performs the conversion.

impl TryFrom<i32> for AfPause

type Error = TryFromPrimitiveError<AfPause>

The type returned in the event of a conversion error.

fn try_from(number: i32) -> Result<Self, TryFromPrimitiveError<Self>>

Performs the conversion.

impl TryFromPrimitive for AfPause

const NAME: &'static str = "AfPause"

type Primitive = i32

fn try_from_primitive( number: Self::Primitive, ) -> Result<Self, TryFromPrimitiveError<Self>>

impl Control for AfPause

impl Copy for AfPause

impl Eq for AfPause

impl StructuralPartialEq for AfPause