Struct windows::IUnknown[−][src]

#[repr(transparent)]
pub struct IUnknown(_);

Expand description

All COM interfaces (and thus WinRT classes and interfaces) implement IUnknown under the hood to provide reference-counted lifetime management as well as the ability to query for additional interfaces that the object may implement.

Trait Implementations

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impl Clone for IUnknown

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fn clone(&self) -> Self

Returns a copy of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for IUnknown

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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 IUnknown

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fn drop(&mut self)

Executes the destructor for this type. Read more

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impl Interface for IUnknown

type Vtable = IUnknown_abi

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const IID: Guid

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unsafe fn vtable(&self) -> &Self::Vtable

Returns the vtable for the current interface.

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unsafe fn assume_vtable<T: Interface>(&self) -> &T::Vtable

Returns the vtable for an assumed interface. The name comes from Box::assume_init() as it assumes the vtable is implemented by the current interface’s vtable (e.g. a parent interface). Read more

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unsafe fn query(&self, iid: *const Guid, interface: *mut RawPtr) -> HRESULT

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fn cast<T: Interface>(&self) -> Result<T>

Attempts to cast the current interface to another interface using QueryInterface. The name cast is preferred to query because there is a WinRT method named query but not one named cast. Read more

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fn downgrade(&self) -> Result<Weak<Self>>

Attempts to create a Weak reference to this object.

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impl PartialEq<IUnknown> for IUnknown

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fn eq(&self, other: &Self) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

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fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

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impl Eq for IUnknown

Auto Trait Implementations

impl RefUnwindSafe for IUnknown

impl !Send for IUnknown

impl !Sync for IUnknown

impl Unpin for IUnknown

impl UnwindSafe for IUnknown

Blanket Implementations

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

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pub 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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pub 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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pub 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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pub fn from(t: T) -> T

Performs the conversion.

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

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pub fn into(self) -> U

Performs the conversion.

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impl<T> ToOwned for T where
    T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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pub fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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pub fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

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pub 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>,

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

The type returned in the event of a conversion error.

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pub fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.