Struct windows::core::Event

pub struct Event<T>
where T: Interface,
{ /* private fields */ }
Expand description

A type that you can use to declare and implement an event of a specified delegate type.

The implementation is thread-safe and designed to avoid contention between events being raised and delegates being added or removed.

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impl<T> Event<T>
where T: Interface,

pub fn new() -> Event<T>

Creates a new, empty Event<T>.

pub fn add(&mut self, delegate: &T) -> Result<i64, Error>

Registers a delegate with the event object.

pub fn remove(&mut self, token: i64) -> Result<(), Error>

Revokes a delegate’s registration from the event object.

pub fn clear(&mut self)

Clears the event, removing all delegates.

pub fn call<F>(&mut self, callback: F) -> Result<(), Error>
where F: FnMut(&T) -> Result<(), Error>,

Invokes all of the event object’s registered delegates with the provided callback.

Trait Implementations§

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impl<T> Default for Event<T>
where T: Interface,

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fn default() -> Event<T>

Returns the “default value” for a type. Read more

Auto Trait Implementations§

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impl<T> RefUnwindSafe for Event<T>
where T: RefUnwindSafe,

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impl<T> !Send for Event<T>

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impl<T> !Sync for Event<T>

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impl<T> Unpin for Event<T>
where T: Unpin,

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impl<T> UnwindSafe for Event<T>

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<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.