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Archive Context

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An archive context contains information about a file that has been saved to disk. The following table identifies archive context values defined by Windows Media Services.

Name

Value (data type)

Key

Description

WMS_ARCHIVE_CONTENT_DESCRIPTION_LIST_BUFFER

IUnknown*

7

Contains an IUnknown pointer that you can use to retrieve a pointer to an INSSBuffer object that the server creates to store metadata about a media item. For more information, see Downloading Content. You can call the GetAndQueryIUnknownValue method on the IWMSContext interface to retrieve a pointer to INSSBuffer.

WMS_ARCHIVE_FILENAME

String

1

Contains the name of the archive file.

WMS_ARCHIVE_FILE_SIZE

QWORD

5

Contains the size of the archive file in bytes.

WMS_ARCHIVE_FORMAT_TYPE

String

2

Contains the format type of the archive file.

WMS_ARCHIVE_PACKET_LOSS_PERCENTAGE

long

6

Contains the percentage of packets lost during transmission of the content.

WMS_ARCHIVE_STATUS_CODE

long

4

Contains an HRESULT indicating whether the content was successfully downloaded.

WMS_ARCHIVE_STREAM_HEADERS

IUnknown*

3

Contains an IUnknown pointer that you can use to retrieve a pointer to the IWMSStreamHeaderList object associated with the archived file. You can call the GetAndQueryIUnknownValue method on the IWMSContext interface to retrieve a pointer to IWMSStreamHeaderList.

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