IWMReaderAdvanced4::GetURL 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 It has been superseded by Source Reader and Sink Writer.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 GetURL method retrieves the URL of the file being read. This URL might be different from the URL that was passed to IWMReader::Open, because the reader might have been redirected.
Syntax
HRESULT GetURL(
WCHAR *pwszURL,
[in] DWORD *pcchURL
);
Parameters
pwszURL
[ out ] Pointer to a wide-character null-terminated string containing the URL of the file.
[in] pcchURL
[ in, out ] Pointer to a variable containing the number of wide characters in pwszURL.
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. |
|
NULL pointer argument. |
Remarks
Call this method twice. The first time, pass NULL as the value for pwszURL. The method returns the size of the string in the pcchURL parameter. Allocate the required amount of memory for the string and call the method again. This time, pass a pointer to the allocated buffer in the pwszURL parameter.
Requirements
| Minimum supported client | Windows 2000 Professional [desktop apps only],Windows Media Format 9 Series 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) |