IWMBandwidthSharing::GetBandwidth 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 It has been superseded by Source Reader and Sink Writer.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 GetBandwidth method retrieves the bandwidth and maximum buffer size of a combined stream.
Syntax
HRESULT GetBandwidth(
[out] DWORD *pdwBitrate,
[out] DWORD *pmsBufferWindow
);
Parameters
[out] pdwBitrate
Pointer to a DWORD containing the bit rate in bits per second. The combined bandwidths of the streams cannot exceed this value.
[out] pmsBufferWindow
Pointer to DWORD containing the buffer window in milliseconds. The combined buffer sizes of the streams cannot exceed this value.
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. |
|
One or both of the parameters are NULL. |
Remarks
The settings of a bandwidth sharing object are purely informational. They are not checked for accuracy.
Requirements
| Requirement | Value |
|---|---|
| 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) |