Struct sdl2::event::EventWatch

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pub struct EventWatch<'a, CB: EventWatchCallback + 'a> { /* private fields */ }
Expand description

An handler for the event watch callback. One must bind this struct in a variable as long as you want to keep the callback active. For further information, see [EventSubsystem::add_event_watch].

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impl<'a, CB: EventWatchCallback + 'a> EventWatch<'a, CB>

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pub fn activate(&mut self)

Activates the event watch. Does nothing if it is already activated.

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pub fn deactivate(&mut self)

Deactivates the event watch. Does nothing if it is already activated.

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pub fn activated(&self) -> bool

Returns if the event watch is activated.

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pub fn set_activated(&mut self, activate: bool)

Set the activation state of the event watch.

Trait Implementations§

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impl<'a, CB: EventWatchCallback + 'a> Drop for EventWatch<'a, CB>

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fn drop(&mut self)

Executes the destructor for this type. Read more

Auto Trait Implementations§

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impl<'a, CB> Freeze for EventWatch<'a, CB>

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impl<'a, CB> RefUnwindSafe for EventWatch<'a, CB>
where CB: RefUnwindSafe,

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impl<'a, CB> Send for EventWatch<'a, CB>
where CB: Send + Sync,

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impl<'a, CB> Sync for EventWatch<'a, CB>
where CB: Sync,

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impl<'a, CB> Unpin for EventWatch<'a, CB>

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impl<'a, CB> UnwindSafe for EventWatch<'a, CB>
where CB: UnwindSafe + RefUnwindSafe,

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.