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CDrawImage.SlowRender 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 SlowRender method draws the video image using the SetDIBitsToDevice or StretchDIBits functions.

Syntax

void SlowRender(
   IMediaSample *pMediaSample
);

Parameters

pMediaSample

Pointer to the IMediaSample interface of the sample that contains the image.

Return value

This method does not return a value.

Remarks

If CDrawImage::UsingImageAllocator returns FALSE, the CDrawImage::DrawImage method uses SlowRender to draw the video image. Otherwise, DrawImage uses the FastRender method.

Requirements

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

See also

CDrawImage Class

CDrawImage::FastRender