glib::subclass::signal

Struct SignalQuery

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pub struct SignalQuery(/* private fields */);
Expand description

In-depth information of a specific signal

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impl SignalQuery

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pub fn signal_name<'a>(&self) -> &'a str

The name of the signal.

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pub fn signal_id(&self) -> SignalId

The ID of the signal.

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pub fn type_(&self) -> Type

The instance type this signal can be emitted for.

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pub fn flags(&self) -> SignalFlags

The signal flags.

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pub fn return_type(&self) -> SignalType

The return type for the user callback.

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pub fn n_params(&self) -> u32

The number of parameters the user callback takes.

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pub fn param_types(&self) -> &[SignalType]

The parameters for the user callback.

Trait Implementations§

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impl Debug for SignalQuery

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

Formats the value using the given formatter. Read more
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impl Send for SignalQuery

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impl Sync for SignalQuery

Auto Trait Implementations§

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.