CBaseRenderer.OnRenderStart method
[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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 |
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| Library |
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