IWMWriterFileSink::Open method (wmsdkidl.h)
[The feature associated with this page, Windows Media Format 11 SDK, is a legacy feature. It has been superseded by Source Reader and Sink Writer. Source Reader and Sink Writer have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use Source Reader and Sink Writer instead of Windows Media Format 11 SDK, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The Open method opens a file that acts as the writer sink.
Syntax
HRESULT Open(
[in] const WCHAR *pwszFilename
);
Parameters
[in] pwszFilename
Pointer to a wide-character null-terminated string containing the file name. URLs are not supported.
Return value
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
|---|---|
|
The method succeeded. |
|
The pwszFilename parameter is NULL. |
Remarks
There is no close method in this interface as the closing of the writer sink file is done automatically by a call to IWMWriter::EndWriting.
See the Remarks and Example Code sections for IWMWriter::BeginWriting.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 2000 Professional [desktop apps only],Windows Media Format 7 SDK, or later versions of the SDK |
| Minimum supported server | Windows 2000 Server [desktop apps only] |
| Target Platform | Windows |
| Header | wmsdkidl.h (include Wmsdk.h) |
| Library | Wmvcore.lib; WMStubDRM.lib (if you use DRM) |