IWMReader::Open

The Open method opens a Windows Media file for reading.

Syntax

HRESULT Open(
  const WCHAR*  pwszURL,
  IWMReaderCallback*  pCallback
  void*  pvContext
);

Parameters

pwszURL

[in] Pointer to a wide-character NULL-terminated string containing the URL.

pCallback

[in] Pointer to a callback.

pvContext

[in] Universal pointer to the context. This context is passed to the user on calls to IWMReaderCallback.

Return Values

If the method succeeds, it returns S_OK. If it fails, it returns an HRESULT error code.

Return code	Meaning
E_POINTER	The pCallback parameter is NULL.
E_OUTOFMEMORY	There is not enough available memory.
E_UNEXPECTED	The method failed for an unspecified reason.

See Also