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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)
[SerializableAttribute]
[FlagsAttribute]
public enum IDLFLAG
Member nameDescription
IDLFLAG_NONEDoes not specify whether the parameter passes or receives information.
IDLFLAG_FINThe parameter passes information from the caller to the callee.
IDLFLAG_FOUTThe parameter returns information from the callee to the caller.
IDLFLAG_FLCIDThe parameter is the local identifier of a client application.
IDLFLAG_FRETVALThe parameter is the return value of the member.

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.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
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