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EC_CLOCK_CHANGED

[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]

The reference clock has changed.

Parameters

lParam1

Zero.

lParam2

Zero.

Default Action

None.

Remarks

The filter graph manager sends this event when its IMediaFilter::SetSyncSource method is called.

Requirements

Requirement Value
Header
Dshow.h

See also

Event Notification Codes

Event Notification in DirectShow