WMCreateWriter function (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 It has been superseded by Source Reader and Sink Writer.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 WMCreateWriter function creates a writer object.
Syntax
HRESULT WMCreateWriter(
[in] IUnknown *pUnkCert,
[out] IWMWriter **ppWriter
);
Parameters
[in] pUnkCert
Pointer to an IUnknown interface. This value is not used and should be set to NULL.
[out] ppWriter
Pointer to a pointer to the IWMWriter interface of the newly created writer object.
Return value
The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
|---|---|
|
The function succeeded. |
|
The function is unable to allocate memory for the new object. |
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 |
| DLL | Wmvcore.dll |