Compartilhar via


RemoveIUnknown Class

 

The new home for Visual Studio documentation is Visual Studio 2017 Documentation on docs.microsoft.com.

The latest version of this topic can be found at RemoveIUnknown Class.

Supports the WRL infrastructure and is not intended to be used directly from your code.

Syntax

template <  
   typename T  
>  
struct RemoveIUnknown;  
  
template <  
   typename T  
>  
class RemoveIUnknown : public T;  

Parameters

T
A class.

Remarks

Makes a type that is equivalent to an IUnknown-based type, but has nonvirtual QueryInterface, AddRef, and Release member functions.

By default, COM methods provide virtual QueryInterface, AddRef, and Release methods. However, ComPtr doesn't require the overhead of virtual methods. RemoveIUnknown eliminates that overhead by providing private, nonvirtual QueryInterface, AddRef, and Release methods.

Members

Public Typedefs

Name Description
ReturnType A synonym for a type that is equivalent to template parameter T but has nonvirtual IUnknown members.

Inheritance Hierarchy

T

RemoveIUnknown

Requirements

Header: client.h

Namespace: Microsoft::WRL::Details

See Also

Microsoft::WRL::Details Namespace