Struct Columns

pub struct Columns(/* private fields */);

Implementations

impl Columns

pub unsafe fn Item(&self, index: i32) -> Result<Column>

pub unsafe fn Count(&self) -> Result<i32>

pub unsafe fn _NewEnum(&self) -> Result<IUnknown>

Methods from Deref<Target = IDispatch>

pub unsafe fn GetTypeInfoCount(&self) -> Result<u32>

pub unsafe fn GetTypeInfo(&self, itinfo: u32, lcid: u32) -> Result<ITypeInfo>

pub unsafe fn GetIDsOfNames( &self, riid: *const GUID, rgsznames: *const PCWSTR, cnames: u32, lcid: u32, rgdispid: *mut i32, ) -> Result<()>

pub unsafe fn Invoke( &self, dispidmember: i32, riid: *const GUID, lcid: u32, wflags: DISPATCH_FLAGS, pdispparams: *const DISPPARAMS, pvarresult: Option<*mut VARIANT>, pexcepinfo: Option<*mut EXCEPINFO>, puargerr: Option<*mut u32>, ) -> Result<()>

Trait Implementations

impl CanInto<IDispatch> for Columns

const QUERY: bool = false

impl CanInto<IUnknown> for Columns

const QUERY: bool = false

impl Clone for Columns

fn clone(&self) -> Columns

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Columns

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

Formats the value using the given formatter.

impl Deref for Columns

type Target = IDispatch

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl From<&Columns> for &IDispatch

fn from(value: &Columns) -> Self

Converts to this type from the input type.

impl From<&Columns> for &IUnknown

fn from(value: &Columns) -> Self

Converts to this type from the input type.

impl From<Columns> for IDispatch

fn from(value: Columns) -> Self

Converts to this type from the input type.

impl From<Columns> for IUnknown

fn from(value: Columns) -> Self

Converts to this type from the input type.

impl Interface for Columns

const IID: GUID = _

The GUID associated with the interface.

fn as_raw(&self) -> *mut c_void

Returns the raw COM interface pointer. The resulting pointer continues to be owned by the Interface implementation.

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.

unsafe fn from_raw(raw: *mut c_void) -> Self

Creates an Interface by taking ownership of the raw COM interface pointer.

unsafe fn from_raw_borrowed(raw: &*mut c_void) -> Option<&Self>

Creates an Interface that is valid so long as the raw COM interface pointer is valid.

fn cast<T>(&self) -> Result<T, Error>

where T: Interface,

Attempts to cast the current interface to another interface using QueryInterface.

fn cast_to_any<T>(&self) -> Result<&(dyn Any + 'static), Error>

where T: ComObjectInner, <T as ComObjectInner>::Outer: Any + 'static + IUnknownImpl<Impl = T>,

This casts the given COM interface to [&dyn Any].

fn is_object<T>(&self) -> bool

where T: ComObjectInner, <T as ComObjectInner>::Outer: Any + 'static + IUnknownImpl<Impl = T>,

Returns true if the given COM interface refers to an implementation of T.

fn cast_object_ref<T>(&self) -> Result<&<T as ComObjectInner>::Outer, Error>

where T: ComObjectInner, <T as ComObjectInner>::Outer: Any + 'static + IUnknownImpl<Impl = T>,

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.

fn cast_object<T>(&self) -> Result<ComObject<T>, Error>

where T: ComObjectInner, <T as ComObjectInner>::Outer: Any + 'static + IUnknownImpl<Impl = T>,

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.

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

Attempts to create a [Weak] reference to this object.

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

Call QueryInterface on this interface

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).

impl PartialEq for Columns

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for Columns

impl StructuralPartialEq for Columns