CBaseRenderer.Render 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 Render method renders a sample.
Syntax
virtual Render(
IMediaSample *pMediaSample
);
Parameters
-
pMediaSample
-
Pointer to the sample's IMediaSample interface.
Return value
Returns an HRESULT value. Possible values include those in the following table.
| Return code | Description |
|---|---|
|
The filter is stopped, or pMediaSample is NULL. |
|
Success. |
Remarks
This method calls the pure virtual method CBaseRenderer::DoRenderSample, which does the real work. The derived class must implement DoRenderSample.
Immediately before calling DoRenderSample, this method calls the CBaseRenderer::OnRenderStart method. Immediately after, it calls the CBaseRenderer::OnRenderEnd method. The derived class can override those two methods as needed.
Requirements
| Requirement | Value |
|---|---|
| Header |
|
| Library |
|
See also
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