PidTagNull Canonical Property
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PidTagNull Canonical Property

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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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