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CBaseRenderer.OnRenderStart method

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[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 OnRenderStart method is called when rendering is about to start.

Syntax

virtual void OnRenderStart(
   IMediaSample *pMediaSample
);

Parameters

pMediaSample

Pointer to the sample's IMediaSample interface.

Return value

This method does not return a value.

Remarks

The CBaseRenderer::Render method calls this method. It does nothing in the base class, but the derived class can override it; for example, to collect quality-control data.

Requirements

Requirement Value
Header
Renbase.h (include Streams.h)
Library
Strmbase.lib (retail builds);
Strmbasd.lib (debug builds)

See also

CBaseRenderer Class