Hide
simply sets Visible to false.
Close fires OnCloseQuery
and OnClose
events. If the form in question is the application's main form, the application will terminate. Depending on CloseAction
the form will either Hide (CloseAction = caHide
), Minimise (CloseAction = caMinimize
) or free itself (CloseAction = caFree
)
Your second question is unclear as to what you are trying to achieve.