EC_WMT_INDEX_EVENT (Windows Media Format 11 SDK)
[The feature associated with this page, Windows Media Format 11 SDK, is a legacy feature. It has been superseded by Source Reader and Sink Writer. Source Reader and Sink Writer have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Source Reader and Sink Writer instead of Windows Media Format 11 SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
Sent by the Windows Media Format SDK when an application uses the ASF Writer to index Windows Media Video files.
Parameters
lParam1
Can be any one of the following WMT_STATUS messages.
| Message | Description |
|---|---|
| WMT_STARTED | Indexing has begun. lParam2 is zero. |
| WMT_CLOSED | Indexing has been completed. lParam2 is zero. |
| WMT_INDEX_PROGRESS | Indexing is in progress. |
lParam2
If lParam1 is WMT_CLOSED or WMT_STARTED, then lParam2 is zero. If lParam1 is WMT_INDEX_PROGRESS, then lParam2 is a DWORD that expresses the amount of progress as a percentage of the total download size.
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