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PidTagNull Canonical Property
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PidTagNull Canonical Property

This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This page may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist.

Represents a null value or setting of a property or reserves array space.

Associated properties:




Data type:




This property is used to reserve space in arrays of SPropValue structures. It is used in an array of SPropTagArray structures to tell the method to reserve space in the returned array of SPropValue structures. This allows for computed properties to be filled in an inexpensive way.

For more information, see MAPI Property Type Overview.

Protocol Specifications


Specifies the properties and operations that are permissible on contacts and personal distribution lists.

Header Files


Provides data type definitions.


Contains definitions of properties listed as associated properties.

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