c++ - How do i render a web cam filter instead of video file in directshow? -

How do I present a webcam filter instead of a video file? I'm looking at vmr9compositor examples included in eyewitness SDK. It provides a video file I want to stream from webcam in the feed. It should look possible, but I do not have much information on DirectShow.

This method currently uses the call:

hr = g_graph-> RenderFile (PFileName, NULL);

Seeing the playcap instance in the SDK which can display the webcam feed in the window, I think its use

  hr = g_pCapture-> Gt; Renderstream (& amp; pin_CATEGORY_PREVIEW, & amp; MEDIATYPE_Video, pSrcFilter, NULL, NULL));  

Windows XP, Visual Studio 2008 C ++

Tell webcam (video capture) sources and explain here Create a source filter using the techniques gone:

From there, you add it as a source filter in your graph.

More details on video capture here with the dishes.