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ComInterfaceType Enumeration

Identifies how to expose an interface to COM.

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

[SerializableAttribute]
[ComVisibleAttribute(true)]
public enum ComInterfaceType

Member nameDescription
Supported by Portable Class LibrarySupported in .NET for Windows Store appsInterfaceIsDualIndicates that the interface is exposed to COM as a dual interface, which enables both early and late binding. InterfaceIsDual is the default value.
Supported by Portable Class LibrarySupported in .NET for Windows Store appsInterfaceIsIDispatchIndicates that an interface is exposed to COM as a dispinterface, which enables late binding only.
Supported in .NET for Windows Store appsInterfaceIsIInspectableIndicates that an interface is exposed to COM as a Windows Runtime interface.
Supported by Portable Class LibrarySupported in .NET for Windows Store appsInterfaceIsIUnknownIndicates that an interface is exposed to COM as an interface that is derived from IUnknown, which enables only early binding.

This enumeration works in conjunction with the InterfaceTypeAttribute attribute.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

.NET for Windows Store apps

Supported in: Windows 8

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

Windows Phone 8.1, Windows Phone 8, Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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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