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title _variant_t Class | Microsoft Docs
ms.custom
ms.date 11/04/2016
ms.reviewer
ms.suite
ms.technology
cpp-language
ms.tgt_pltfrm
ms.topic language-reference
f1_keywords
_variant_t
dev_langs
C++
helpviewer_keywords
_variant_t class [C++], operators
_variant_t class
_variant_t class [C++], member functions
VARIANT object
VARIANT object [C++], COM encapsulation
ms.assetid 6a3cbd4e-0ae8-425e-b4cf-ca0df894c93f
caps.latest.revision 10
author mikeblome
ms.author mblome
manager ghogen

_variant_t Class

Microsoft Specific

A _variant_t object encapsulates the VARIANT data type. The class manages resource allocation and deallocation and makes function calls to VariantInit and VariantClear as appropriate.

Construction
_variant_t Constructs a _variant_t object.

Operations
Attach Attaches a VARIANT object into the _variant_t object.
Clear Clears the encapsulated VARIANT object.
ChangeType Changes the type of the _variant_t object to the indicated VARTYPE.
Detach Detaches the encapsulated VARIANT object from this _variant_t object.
SetString Assigns a string to this _variant_t object.

Operators
Operator = Assigns a new value to an existing _variant_t object.
operator ==, != Compare two _variant_t objects for equality or inequality.
Extractors Extract data from the encapsulated VARIANT object.

END Microsoft Specific

Requirements

Header: comutil.h

Lib: comsuppw.lib or comsuppwd.lib (see /Zc:wchar_t (wchar_t Is Native Type) for more information)

See Also

Compiler COM Support Classes