EC_DVD_PLAYBACK_RATE_CHANGE

[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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.]

Signals that a rate change in DVD playback has been initiated.

Parameters

lParam1

LONG indicating the new playback rate. The value is the actual playback rate multiplied by 10,000, so the playback rate equals 10000.0 / lParam1. Values less than zero indicate reverse playback mode, and values greater than zero indicate forward playback mode.

lParam2

Zero.

Remarks

This event is raised in the title domain.

Playback rate is the inverse of playback speed. For example, if playback speed is 2x, the rate is 0.5.

Requirements

Requirement Value
Header
Dvdevcode.h (include Dshow.h)

See also

DVD Applications

DVD Event Notification Codes

Event Notification in DirectShow