```mermaid
graph TD
    Start([開始 EventSinkChanged]) --> Cast[將 EventSink 轉換為 ICB_IMGPSScanXEvents]
    Cast --> SetFEvents[賦值給 FEvents 變數]
    SetFEvents --> CallInherited[呼叫 inherited EventSinkChanged]
    CallInherited --> End([結束])
```