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Learn more about: switch_is

switch_is (C++ COM Attribute)

10/02/2018

vc-attr.switch_is

switch_is attribute

f1fffe5d-12d2-4e0f-8803-ccb715177d2d

switch_is

Specifies the expression or identifier acting as the union discriminant that selects the union member.

Syntax

[switch_is]

Remarks

The switch_is C++ attribute has the same functionality as the switch_is MIDL attribute.

Example

See the case example for a sample use of switch_is.

Requirements

Attribute context	Value
Applies to	`typedef`
Repeatable	No
Required attributes	None
Invalid attributes	None

For more information about the attribute contexts, see Attribute Contexts.

See also

IDL Attributes
Typedef, Enum, Union, and Struct Attributes
switch_type