IWMReaderNetworkConfig2::GetEnableFastCache 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 It has been superseded by Source Reader and Sink Writer.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 GetEnableFastCache method queries whether Fast Cache streaming is enabled. Fast Cache streaming enables network content to be streamed faster than the playback rate, if bandwidth allows.

Syntax

HRESULT GetEnableFastCache(
  [out] BOOL *pfEnableFastCache
);

Parameters

[out] pfEnableFastCache

Pointer to a variable that receives a Boolean value. The value is True if Fast Cache streaming is enabled, or False otherwise.

Return value

The method returns an HRESULT. Possible values include, but are not limited to, those in the following table.

Return code Description
S_OK
The method succeeded.
E_INVALIDARG
NULL pointer argument.

Remarks

This feature requires content caching to be enabled as well. Fast Cache applies only to content being streamed from a server running Windows Media Services.

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)

See also

Enabling Fast Cache Streaming from the Client

IWMReaderNetworkConfig2 Interface

IWMReaderNetworkConfig2::SetEnableFastCache