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CBaseRenderer::SendNotifyWindow

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Microsoft DirectShow 9.0

CBaseRenderer::SendNotifyWindow

The SendNotifyWindow method notifies the upstream filter of the video window handle.

Syntax

  void SendNotifyWindow(
    IPin *pPin,
    HWND hwnd
);

Parameters

pPin

Pointer to the IPin interface of the upstream filter's output pin.

hwnd

Handle to the video window, or NULL.

Return Value

No return value.

Remarks

If the output pin of the upstream filter supports the IMediaEventSink interface, this method sends it the EC_NOTIFY_WINDOW event code along with the window handle.

Video renderers can override their CBaseRenderer::CompleteConnect methods to call this method. It provides a mechanism for informing the upstream filter of the window handle. If you do this, override the CBaseRenderer::BreakConnect method as well, and call SendNotifyWindow with a NULL handle.

Requirements

**  Header:** Declared in Renbase.h; include Streams.h.

**  Library:** Use Strmbase.lib (retail builds) or Strmbasd.lib (debug builds).

See Also