This is Event-Driven Programming. GUI is type of ED application (non-GUI examples: servers, stream parsers etc). Event-driven programming involve a new type of flow-of-controls — events. Events are asynchronous (happen at unpredictable time), they manifest themselves by altering the state of execution environment.
How are GUI coded?
A graphical user interface (GUI) allows a user to interact with a computer program using a pointing device that manipulates small pictures on a computer screen. This style of programming is called “event driven programming.” In fact, by definition, all GUI programs are event-driven programs.
Which is the best programming language for event-driven programming?
Virtually all object-oriented and visual languages support event-driven programming. Visual Basic, Visual C++ and Java are examples of such languages. A visual programming IDE such as VB.Net provides much of the code for detecting events automatically when a new application is created.
How do GUI events work?
The program loads, then waits for user input events. As each event occurs, the program runs particular code to respond. event: An object that represents a user’s interaction with a GUI component; can be “handled” to create interactive components. listener: An object that waits for events and responds to them.
What does it mean that a GUI is event-driven?
What is the opposite of event driven programming?
The opposite of event-driven programming would be programming that is written to act regardless of user input. For example, display apps such as those for weather updates or sports scores may feature less of the event-driven programming that is inherent in other kinds of programs.
What does it mean that a GUI is event driven?
What is an event loop in GUI programming?
From Wikipedia, the free encyclopedia. In computer science, the event loop is a programming construct or design pattern that waits for and dispatches events or messages in a program.