EC_SAMPLE_NEEDED

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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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

Requests a new input sample from the Enhanced Video Renderer (EVR) filter.

Parameters

lParam1

Identifier of the input stream that needs new input.

lParam2

Zero.

Default Action

None.

Remarks

The mixer for the EVR filter sends this message when it needs a new input sample.

Requirements

Requirement Value
Header
Dshow.h

See also

Event Notification Codes