: This is an event procedure that executes a set of commands when a user clicks a specific object, such as a button. It is commonly used to submit data or trigger a new process.

: For an application "exit," developers often use the FormClosing event to ask for confirmation (e.g., "Are you sure you want to quit?") or to save changes before the window shuts down. Example Code Snippet (Visual Basic)

: Using the Exit event to check if a text box contains valid data before the user clicks elsewhere.

To create a simple "Exit" button that closes an application when clicked, developers use:

: Using the Click event on buttons to move between different screens or forms.