次の方法で共有


_variant_t Class

 

The latest version of this topic can be found at _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