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boolean attribute

The keyword boolean indicates that the expression or constant expression associated with the identifier takes only the values TRUE and FALSE.


boolean identifier-name;

Parameters

identifier-name

Specifies a valid MIDL identifier. Valid MIDL identifiers consist of up to 31 alphanumeric and/or underscore characters and must start with an alphabetic or underscore character.

Remarks

The boolean type is one of the base types of the IDL language. The boolean type can appear as a type specifier in const declarations, typedef declarations, general declarations, and function declarators (as a function-return-type specifier and as a parameter-type specifier). For the context in which type specifiers appear, see Interface Definition (IDL) File.

Note  The boolean base type is not compatible with the oleautomation attribute. Use VARIANT_BOOL in your Automation-compatible interfaces.

See also

MIDL Base Types
const
Interface Definition (IDL) File
oleautomation
typedef

 

 

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