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| This is retired content. This content is outdated and is no longer being maintained. It is provided as a courtesy for individuals who are still using these technologies. This content may contain URLs that were valid when originally published, but now link to sites or pages that no longer exist. |
The open file status is changing.
Parameters
- lParam1
Set to 1 if starting to open file, or 0 if not opening any more.
- lParam2
Zero.
Remarks
This event notification is sent to the application. This notification is used to allow the user interface to indicate that a media file is being opened prior to being processed by DirectShow. (Because the file might be on the Internet or some slow device, some opens might take longer.) This notification is also sent when the file has been opened.
For information on how to use this event code, see CBaseFilter::NotifyEvent.