What is a Tooltip?

A tooltip is a rectangular window that is displayed when the mouse hovers over a specific area. The tooltip window contains some text that the programmer wants to display. In this regard, tooltips have the same effect as the status bar. The difference is that tooltips disappear when you click or move away from the specified area. You may be familiar with the tooltips associated with toolbars. "A convenience provided by toolbar controls. If you want to display tooltips in other windows and controls, you have to create them yourself.