|Microsoft DirectX 9.0|
The ScheduleEntryChanged method is called by the TIF when information about one or more schedule entries has changed.
HRESULT ScheduleEntryChanged( VARIANT varScheduleEntryDescriptionID );
[in] Specifies the unique identifier of the program that has changed. Call IGuideData::GetScheduleEntryProperties 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 S_OK if successful, or an error code.