Struct opencv::core::Event

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pub struct Event { /* private fields */ }

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impl Event

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pub fn new(flags: Event_CreateFlags) -> Result<Event>

§C++ default parameters
  • flags: Event::CreateFlags::DEFAULT
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pub fn new_def() -> Result<Event>

§Note

This alternative version of [new] function uses the following default values for its arguments:

  • flags: Event::CreateFlags::DEFAULT
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pub fn elapsed_time( start: &impl EventTraitConst, end: &impl EventTraitConst ) -> Result<f32>

computes the elapsed time between events

Trait Implementations§

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impl Boxed for Event

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unsafe fn from_raw(ptr: <Event as OpenCVFromExtern>::ExternReceive) -> Self

Wrap the specified raw pointer Read more
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fn into_raw(self) -> <Event as OpenCVTypeExternContainer>::ExternSendMut

Return the underlying raw pointer while consuming this wrapper. Read more
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fn as_raw(&self) -> <Event as OpenCVTypeExternContainer>::ExternSend

Return the underlying raw pointer. Read more
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fn as_raw_mut(&mut self) -> <Event as OpenCVTypeExternContainer>::ExternSendMut

Return the underlying mutable raw pointer Read more
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impl Debug for Event

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

Formats the value using the given formatter. Read more
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impl Drop for Event

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fn drop(&mut self)

Executes the destructor for this type. Read more
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impl EventTrait for Event

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fn as_raw_mut_Event(&mut self) -> *mut c_void

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fn record(&mut self, stream: &mut impl StreamTrait) -> Result<()>

records an event Read more
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fn record_def(&mut self) -> Result<()>

records an event Read more
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fn wait_for_completion(&mut self) -> Result<()>

waits for an event to complete
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impl EventTraitConst for Event

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fn as_raw_Event(&self) -> *const c_void

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fn query_if_complete(&self) -> Result<bool>

queries an event’s status
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impl Send for Event

Auto Trait Implementations§

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impl Freeze for Event

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impl RefUnwindSafe for Event

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impl !Sync for Event

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impl Unpin for Event

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impl UnwindSafe for Event

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<Mat> ModifyInplace for Mat
where Mat: Boxed,

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unsafe fn modify_inplace<Res>( &mut self, f: impl FnOnce(&Mat, &mut Mat) -> Res ) -> Res

Helper function to call OpenCV functions that allow in-place modification of a Mat or another similar object. By passing a mutable reference to the Mat to this function your closure will get called with the read reference and a write references to the same Mat. This is of course unsafe as it breaks the Rust aliasing rules, but it might be useful for some performance sensitive operations. One example of an OpenCV function that allows such in-place modification is imgproc::threshold. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.