在下列程序中,无论使用鼠标左键还是右键都能弹出菜单,且弹出菜单中的菜单项都响应鼠标单击,下面语句正确的是( )
- ASubForm_MouseDown(ButtonAsInteger,ShiftAsInteger,XAsSingle,YAsSingle):PopupMenutest:EndSub
- BSubForm_keypress(ButtonAsInteger,ShiftAsInteger,XAsSingle,YAsSingle):PopupMenutest:EndSub
- CSubForm_keyDown(ButtonAsInteger,ShiftAsInteger,XAsSingle,YAsSingle):PopupMenutest:EndSub
- DSubForm_MouseDown(ShiftAsInteger,XAsSingle,YAsSingle):PopupMenutest:EndSub