I made a lot of changed on this object,such as　　　　　　　　　　*

//　　　　1.Encapsulates all code in one userobjet,since PB does not　　*

//　　　　 support "Address of Function" , so we can not set new 　　*

//　　　　 WndProc, just makes the object more easy to use.　　　　　　　　*

//　　　　2.Uses structure array instead of Datastore　　　　　　　　　　　　*

//　　　　3.Calc width of menuitem at runtime(MEASUREITEM)　　　　　　　　*

//　　　　4.Draw disabled status-I made a lot of changed on this object, such as*// 1.Encapsulates all code in one userobjet, since PB does not*// support　Address of Function , so we can not set new*// WndProc, just makes the object more easy to use.*// 2.Uses structure array instead of Datastore*// 3.Calc width of menuitem at runtime (MEASUREITEM)*// 4.Draw disabled status