```mermaid
flowchart TD
    Start([開始]) --> MatchVMode{判斷 VMode 索引}
    MatchVMode -- 0 (單頁) --> CallDisp0[呼叫 DisplayMode 1x1 佈局]
    MatchVMode -- 1 (兩頁) --> CallDisp1[呼叫 DisplayMode 1x1 佈局]
    MatchVMode -- 2 (網格) --> CallDisp2[呼叫 DisplayMode 2x2 佈局]
    MatchVMode -- 3 (自定義) --> CallDisp3[呼叫 DisplayMode 2x3 佈局]
    MatchVMode -- 4 (擴展) --> CallDisp4[呼叫 DisplayMode 2x4 佈局]
    CallDisp0 --> End([結束])
    CallDisp1 --> End
    CallDisp2 --> End
    CallDisp3 --> End
    CallDisp4 --> End
```