Implements Structure

Article
12/18/2017

The latest version of this topic can be found at Implements Structure.

Implements QueryInterface and GetIid for the specified interfaces.

Syntax

template <  
   typename I0,  
   typename I1 = Details::Nil,  
   typename I2 = Details::Nil,  
   typename I3 = Details::Nil,  
   typename I4 = Details::Nil,  
   typename I5 = Details::Nil,  
   typename I6 = Details::Nil,  
   typename I7 = Details::Nil,  
   typename I8 = Details::Nil,  
   typename I9 = Details::Nil  
>  
struct __declspec(novtable) Implements : Details::ImplementsHelper<RuntimeClassFlags<WinRt>, typename Details::InterfaceListHelper<I0, I1, I2, I3, I4, I5, I6, I7, I8, I9>::TypeT>, Details::ImplementsBase;  
template <  
   int flags,  
   typename I0,  
   typename I1,  
   typename I2,  
   typename I3,  
   typename I4,  
   typename I5,  
   typename I6,  
   typename I7,  
   typename I8  
>  
struct __declspec(novtable) Implements<RuntimeClassFlags<flags>, I0, I1, I2, I3, I4, I5, I6, I7, I8> : Details::ImplementsHelper<RuntimeClassFlags<flags>, typename Details::InterfaceListHelper<I0, I1, I2, I3, I4, I5, I6, I7, I8>::TypeT>, Details::ImplementsBase;

Parameters

I0
The zeroth interface ID. (Mandatory)

I1
The first interface ID. (Optional)

I2
The second interface ID. (Optional)

I3
The third interface ID. (Optional)

I4
The fourth interface ID. (Optional)

I5
The fifth interface ID. (Optional)

I6
The sixth interface ID. (Optional)

I7
The seventh interface ID. (Optional)

I8
The eigth interface ID. (Optional)

I9
The ninth interface ID. (Optional)

flags
Configuration flags for the class. One or more RuntimeClassType enumerations that are specified in a RuntimeClassFlags structure.

Remarks

Derives from the list of specified interfaces and implements helper templates for QueryInterface and GetIid.

Each I0 through I9 interface parameter must derive from either IUnknown, IInspectable, or the ChainInterfaces template. The flags parameter determines whether support is generated for IUnknown or IInspectable.

Members

Public Typedefs

Name	Description
`ClassFlags`	A synonym for `RuntimeClassFlags<WinRt>`.

Protected Methods

Name	Description
Implements::CanCastTo Method	Gets a pointer to the specified interface.
Implements::CastToUnknown Method	Gets a pointer to the underlying IUnknown interface.
Implements::FillArrayWithIid Method	Inserts the interface ID specified by the current zeroth template parameter into the specified array element.

Protected Constants

Name	Description
Implements::IidCount Constant	Holds the number of implemented interface IDs.

Inheritance Hierarchy

I0

ChainInterfaces

I0

ImplementsBase

ImplementsHelper

Implements

Requirements

Header: implements.h

Namespace: Microsoft::WRL

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