Trait windows::Interface

pub unsafe trait Interface: Sized + Abi + PartialEq {
    const IID: Guid;
    fn cast<T: Interface>(&self) -> Result<T> { ... }
    fn downgrade(&self) -> Result<Weak<Self>> { ... }
}

Provides low-level access to a COM interface.

This trait is automatically used by the generated bindings and should not be used directly.

Associated Constants

const IID: Guid

A unique identifier representing this interface.

Provided methods

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.

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

Attempts to create a Weak reference to this object.

Implementors

impl Interface for IInspectable

type Vtable = IInspectable_abi

const IID: Guid

impl Interface for IUnknown

type Vtable = IUnknown_abi

const IID: Guid