The Document Summary Information Property Set

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OLE defines a standard common property set for storing summary information about documents. The Document Summary Information property set must be stored in an IStream instance off of the root storage object; it is not valid to store the property set in the "Contents" stream of a named IStorage instance.

All shared property sets are identified by a stream or storage name prepended with "\005" (or 0x05) to show it is a property set shareable among applications and the Document Summary Information property set is no exception. The name of the stream that contains the Document Summary Information property set is:

"\005SummaryInformation"

The FMTID for the Document Summary Information property set is:

F29F85E0-4FF9-1068-AB91-08002B27B3D9

Use the DEFINE_GUID macro to define the FMTID for the property set:

DEFINE_GUID(FormatID_SummaryInformation, 0xF29F85E0, 0x4FF9, 0x1068, 0xAB, 0x91, 0x08, 0x00, 0x2B, 0x27, 0xB3, 0xD9);

On an Intel byte-ordered machine, the FMTID has the following representation:

E0 85 9F 4F 68 10 AB 91 08 00 2B 27 B3 D9

The following table shows the property names for the Document Summary Information property set, along with the respective property IDs and type indicators.

Property Name	Property ID	Property ID Code	Type
Title	PID_TITLE	0x00000002	VT_LPSTR
Subject	PID_SUBJECT	0x00000003	VT_LPSTR
Author	PID_AUTHOR	0x00000004	VT_LPSTR
Keywords	PID_KEYWORDS	0x00000005	VT_LPSTR
Comments	PID_COMMENTS	0x00000006	VT_LPSTR
Template	PID_TEMPLATE	x00000007	VT_LPSTR
Last Saved By	PID_LASTAUTHOR	x00000008	VT_LPSTR
Revision Number	PID_REVNUMBER	x00000009	VT_LPSTR
Total Editing Time	PID_EDITTIME	x0000000A	VT_FILETIME
Last Printed	PID_LASTPRINTED	x0000000B	VT_FILETIME
Create Time/Date (*)	PID_CREATE_DTM	x0000000C	VT_FILETIME
Last saved Time/Date (*)	PID_LASTSAVE_DTM	x0000000D	VT_FILETIME
Number of Pages Number of Words Number of Characters	PID_PAGECOUNT PID_WORDCOUNT PID_CHARCOUNT	x0000000E 0x0000000F 0x00000010	VT_I4 VT_I4 VT_I4
Thumbnail	PID_THUMBNAIL	0x00000011	VT_CF
Name of Creating Application	PID_APPNAME	0x00000012	VT_LPSTR
Security	PID_SECURITY	0x00000013	VT_I4

Some methods of file transfer (such as a download from a BBS) do not maintain the file system's
version of this information correctly.

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