Shortcut key settings in the WinForm interface

This is the whole interface of the shortcut key settings, such as query, save.
1         protected Override BOOLprocessCmdKey (refMessage msg, Keys keyData)2         {3             if(KeyData = =keys.f2)4             {5                 if(btnselect.enabled)6                 {7Btnselect_click (NULL, eventargs.empty);8                     return true;//return True Otherwise the control focus will change with the direction key9                 }Ten             } One             Else if(KeyData = =keys.f4) A             { -                 if(btnsave.enabled) -                 { theBtnsave_click (NULL, eventargs.empty); -                     return true;//return True Otherwise the control focus will change with the direction key -                 } -             } +             return Base. processCmdKey (refmsg, keyData); //This ensures that other keys can be used normally  -}