通过

ITuneRequestInfo::GetNextProgram

  • 项目
 
Microsoft DirectShow 9.0

ITuneRequestInfo::GetNextProgram

The GetNextProgram method creates a new tune request with channel or program locator information for the next service.

Syntax

  HRESULT GetNextProgram(
  ITuneRequest*  pCurrentRequest,
  ITuneRequest**  ppTuneRequest
);

Parameters

pCurrentRequest

[in]  Specifies the ITuneRequest interface of the current request.

ppTuneRequest

[out]  Pointer to a variable that will receive a tune request for the next service on the transport stream.

Return Values

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: Include bdatif.h.

See Also