通过

CAMMsgEvent::CAMMsgEvent

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Microsoft DirectShow 9.0

CAMMsgEvent::CAMMsgEvent

Constructor method.

CAMMsgEvent

  CAMMsgEvent(
HRESULT *phr = NULL
);

Parameters

phr

Pointer to an HRESULT value. If the constructor fails, this parameter receives an error code. If this occurs, the object is not in a valid state.

For backward compatibility with earlier versions of strmbase.lib, this parameter defaults to NULL. However, passing a non-NULL value is preferred, so that the caller can check the status of the object.

Requirements

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

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

See Also