就這么一點？  回復  更多評論
  

積少成多, 聚砂成塔!  回復  更多評論
  

Locks the class factory of the specified control so that dynamically created data associated with the control remains in memory. This can significantly speed up display of the controls. For example, once you create a control in a dialog box and lock the control with AfxOleLockControl, you do not need to create and kill it again every time the dialog is shown or destroyed. If the user opens and closes a dialog box repeatedly, locking your controls can significantly enhance performance. When you are ready to destroy the control, call AfxOleUnlockControl.
根據msdn解釋和參數來看，恐怕鎖住的不是控件而是控件對應的類廠，僅僅一個clsid不是實例對象，充其量只是決定控件的類型信息。這樣好處應該是多次創建帶來的，COM組件創建需要類廠。  回復  更多評論