| UID | title | description | helpviewer_keywords | old-location | tech.root | ms.assetid | ms.date | ms.keywords | req.header | req.include-header | req.target-type | req.target-min-winverclnt | req.target-min-winversvr | req.kmdf-ver | req.umdf-ver | req.ddi-compliance | req.unicode-ansi | req.idl | req.max-support | req.namespace | req.assembly | req.type-library | req.lib | req.dll | req.irql | targetos | req.typenames | req.redist | ms.custom | f1_keywords | dev_langs | topic_type | api_type | api_location | api_name | ||||||||||||||||||||
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NS:mapi.MapiFileDescW |
MapiFileDescW (mapi.h) |
A MapiFileDescW structure contains information about a file containing a message attachment stored as a temporary file. That file can contain a static OLE object, an embedded OLE object, an embedded message, and other types of files. |
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mapi\mapifiledescw.htm |
mapi |
CF7C41DF-D361-457F-B038-5C1144E70AA6 |
12/05/2018 |
*lpMapiFileDescW, MAPI_OLE, MAPI_OLE_STATIC, MapiFileDescW, MapiFileDescW structure, lpMapiFileDescW, lpMapiFileDescW structure pointer, mapi.mapifiledescw, mapi/MapiFileDescW, mapi/lpMapiFileDescW |
mapi.h |
Windows |
Windows 8 [desktop apps only] |
Windows Server 2012 [desktop apps only] |
Windows |
MapiFileDescW, *lpMapiFileDescW |
19H1 |
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A MapiFileDescW structure contains information about a file containing a message attachment stored as a temporary file. That file can contain a static OLE object, an embedded OLE object, an embedded message, and other types of files.
Type: ULONG
Reserved; must be 0.
Type: ULONG
Bitmask of attachment flags. The following flags can be set.
If neither flag is set, the attachment is treated as a data file.
Type: ULONG
An integer used to indicate where the attachment is rendered in the message text. The message text is stored in the NoteText member of the MapiMessageW structure, and the integer is used as an index to identify a specific character in the message string, NoteText[nPosition], that is replaced by the attachment.
A value of -1 (0xFFFFFFFF) means the attachment position is not indicated and the client application must provide a way for the user to access the attachment.
Type: PWSTR
Pointer to the fully qualified path of the attached file. This path should include the disk drive letter and directory name.
Type: PWSTR
Pointer to the filename of the attachment as seen by the recipient. The filename that is seen by the recipient may differ from the filename in the lpszPathName member if temporary files are being used.
If the lpszFileName member is empty or NULL, the filename from lpszPathName is used.
Type: PVOID
Pointer to the attachment file type, which can be represented with a MapiFileTagExt structure.
A value of NULL indicates an unknown file type or a file type determined by the operating system.
Simple MAPI works with three kinds of embedded attachments:
- Data file attachments
- Editable OLE object file attachments
- Static OLE object file attachments
OLE object files are file representations of OLE object streams. The client application can re-create an OLE object from the file by calling the OLE function OleLoadFromStream with an OLESTREAM object that reads the file contents. If an OLE file attachment is included in an outbound message, the OLE object stream should be written directly to the file used as the attachment.
When using the MapiFileDescW member nPosition, the client application should not place two attachments in the same location. Client applications might not display file attachments at positions beyond the end of the message text.