This documentation is archived and is not being maintained.

PARAMFLAG 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 enum PARAMFLAG

Member nameDescription
PARAMFLAG_NONEDoes not specify whether the parameter passes or receives information.
PARAMFLAG_FINThe parameter passes information from the caller to the callee.
PARAMFLAG_FOUTThe parameter returns information from the callee to the caller.
PARAMFLAG_FLCIDThe parameter is the local identifier of a client application.
PARAMFLAG_FRETVALThe parameter is the return value of the member.
PARAMFLAG_FOPTThe parameter is optional.
PARAMFLAG_FHASDEFAULTThe parameter has default behaviors defined.
PARAMFLAG_FHASCUSTDATAThe parameter has custom data.

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.