title	ArgTraitsHelper Structure | Microsoft Docs
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ArgTraitsHelper Structure

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

Syntax

template<  
   typename TDelegateInterface  
>  
struct ArgTraitsHelper;  

Parameters

TDelegateInterface
A delegate interface.

Remarks

Helps define common characteristics of delegate arguments.

Members

Public Typedefs

Name	Description
methodType	A synonym for decltype(&TDelegateInterface::Invoke).
Traits	A synonym for ArgTraits<methodType>.

Public Constants

Name	Description
ArgTraitsHelper::args Constant	Helps ArgTraits::args keep count of the number of parameters on the Invoke method of a delegate interface.

Inheritance Hierarchy

ArgTraitsHelper

Requirements

Header: event.h

Namespace: Microsoft::WRL::Details

See Also

Microsoft::WRL::Details Namespace