pub struct IUnknown(/* private fields */);Expand description
Base interface for all COM interfaces.
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§
Source§impl ComObjectInterface<IUnknown> for DropTarget_Impl
impl ComObjectInterface<IUnknown> for DropTarget_Impl
Source§fn as_interface_ref(&self) -> InterfaceRef<'_, IUnknown>
fn as_interface_ref(&self) -> InterfaceRef<'_, IUnknown>
Gets a borrowed interface that is implemented by
T.impl Eq for IUnknown
Source§impl From<&IInspectable> for &IUnknown
impl From<&IInspectable> for &IUnknown
Source§fn from(value: &IInspectable) -> &IUnknown
fn from(value: &IInspectable) -> &IUnknown
Converts to this type from the input type.
Source§impl From<DropTarget> for IUnknown
impl From<DropTarget> for IUnknown
Source§fn from(this: DropTarget) -> Self
fn from(this: DropTarget) -> Self
Converts to this type from the input type.
Source§impl From<IInspectable> for IUnknown
impl From<IInspectable> for IUnknown
Source§fn from(value: IInspectable) -> IUnknown
fn from(value: IInspectable) -> IUnknown
Converts to this type from the input type.
Source§impl Interface for IUnknown
impl Interface for IUnknown
Source§fn as_raw(&self) -> *mut c_void
fn as_raw(&self) -> *mut c_void
Returns the raw COM interface pointer. The resulting pointer continues to be owned by the
Interface implementation.Source§fn into_raw(self) -> *mut c_void
fn into_raw(self) -> *mut c_void
Returns the raw COM interface pointer and releases ownership. It the caller’s responsibility to release the COM interface pointer.
Source§fn cast<T>(&self) -> Result<T, Error>where
T: Interface,
fn cast<T>(&self) -> Result<T, Error>where
T: Interface,
Attempts to cast the current interface to another interface using
QueryInterface. Read moreSource§fn cast_to_any<T>(&self) -> Result<&(dyn Any + 'static), Error>
fn cast_to_any<T>(&self) -> Result<&(dyn Any + 'static), Error>
This casts the given COM interface to [
&dyn Any]. Read moreSource§fn cast_object_ref<T>(&self) -> Result<&<T as ComObjectInner>::Outer, Error>
fn cast_object_ref<T>(&self) -> Result<&<T as ComObjectInner>::Outer, Error>
This casts the given COM interface to [
&dyn Any]. It returns a reference to the “outer”
object, e.g. &MyApp_Impl, not the inner &MyApp object. Read moreSource§fn cast_object<T>(&self) -> Result<ComObject<T>, Error>
fn cast_object<T>(&self) -> Result<ComObject<T>, Error>
This casts the given COM interface to [
&dyn Any]. It returns a reference to the “outer”
object, e.g. MyApp_Impl, not the inner MyApp object. Read moreSource§fn downgrade(&self) -> Result<Weak<Self>, Error>
fn downgrade(&self) -> Result<Weak<Self>, Error>
Attempts to create a
Weak reference to this object.Source§unsafe fn query(&self, iid: *const GUID, interface: *mut *mut c_void) -> HRESULT
unsafe fn query(&self, iid: *const GUID, interface: *mut *mut c_void) -> HRESULT
Call
QueryInterface on this interface Read moreSource§fn to_ref(&self) -> InterfaceRef<'_, Self>
fn to_ref(&self) -> InterfaceRef<'_, Self>
Creates an
InterfaceRef for this reference. The InterfaceRef tracks lifetimes statically,
and eliminates the need for dynamic reference count adjustments (AddRef/Release).Auto Trait Implementations§
impl !Send for IUnknown
impl !Sync for IUnknown
impl Freeze for IUnknown
impl RefUnwindSafe for IUnknown
impl Unpin for IUnknown
impl UnsafeUnpin for IUnknown
impl UnwindSafe for IUnknown
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more