IDLFLAG Enumeration


Describes how to transfer a structure element, parameter, or function return value between processes.

This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.

Namespace:   System.Runtime.InteropServices.ComTypes
Assembly:  mscorlib (in mscorlib.dll)

Public Enumeration IDLFLAG

Member nameDescription

The parameter passes information from the caller to the callee.


The parameter is the local identifier of a client application.


The parameter returns information from the callee to the caller.


The parameter is the return value of the member.


Does not specify whether the parameter passes or receives information.

The common language runtime throws an exception when a COM method in native code returns an HRESULT. For more information, see How to: Map HRESULTs and Exceptions.

Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Windows Phone
Available since 8.1
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