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PidTagAttachSize Canonical Property

Last modified: July 23, 2011

Applies to: Outlook

Contains the sum, in bytes, of the sizes of all properties on an attachment.

Associated properties:

PR_ATTACH_SIZE

Identifier:

0x0E20

Data type:

PT_LONG

Area:

Message attachment

It is recommended that attachment subobjects expose the PR_ATTACH_SIZE property. The sum contained in PR_ATTACH_SIZE includes the size of the PR_ATTACH_DATA_BIN (PidTagAttachDataBinary) or PR_ATTACH_DATA_OBJ (PidTagAttachDataObject) property. Accordingly, PR_ATTACH_SIZE is usually larger than the contents of the attachment alone.

This property can be used to check the approximate size of the attachment before performing a remote transfer by modem and to display progress indicators when saving the attachment to disk. It is particularly useful with attached OLE objects.

Protocol Specifications

[MS-OXCMSG]

Handles message and attachment objects.

Header Files

Mapidefs.h

Provides data type definitions.

mapitags.h

Contains definitions of properties listed as alternate names.

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