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The GetPreviousProgram method creates a new tune request with channel or program locator information for the previous service.
Syntax
HRESULT GetPreviousProgram(
[in] ITuneRequest *pCurrentRequest,
[out] ITuneRequest **ppTuneRequest
);
Parameters
pCurrentRequest [in]
Specifies the current request.ppTuneRequest [out]
Pointer to a variable that receives a tune request for the previous service in the current transport stream.
Return Value
The method returns an HRESULT. Possible values include those in the following table.
| Return code | Description |
|---|---|
S_OK |
The method succeeded. |
E_POINTER |
CurrentRequest is not valid, or TuneRequest is NULL. |
Remarks
This method might be used by a custom Guide Store Loader to enumerate the available services on a transport stream.
Requirements
| Header | Declared in Bdatif.h. |
See Also
Error and Success Codes
ITuneRequestInfo Interface
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Build date: 12/4/2008