IGuideDataEvent::ProgramChanged method (bdatif.h)

[The feature associated with this page, Microsoft TV Technologies, is a legacy feature. Microsoft strongly recommends that new code does not use this feature.]

The ProgramChanged method is called when information about one or more programs has changed.

Syntax

HRESULT ProgramChanged(
  [in] VARIANT varProgramDescriptionID
);

Parameters

[in] varProgramDescriptionID

Specifies the unique identifier of the program that has changed. Call IGuideData::GetProgramProperties to get information about the program. The value of this parameter may be an empty VARIANT type (VT_EMPTY); if so, examine all of the programs to determine which ones have changed.

Return value

Return S_OK if successful, or an error code.

Requirements

See also

Error and Success Codes

IGuideDataEvent Interface