In user interface design, a modal window (often referred to as an "extended drop down menu") is a graphical control element subordinate to an application's main window which creates a mode where the main window can't be used.
A modal window (often referred to as an "extended drop down menu") is a graphical control element subordinate to an application's main window. This is in user interface design. This application's main window creates a mode where the main window can't be used.