In a remote monitoring center, an alarm goes off. The operator must react quickly: identify the correct contact and dial their number without wasting a second. But on the screen, the information is displayed in small print, buried among the other fields on the form. In an emergency, finding it, rereading it, and making sure not to mistype a single digit—every second counts.

This course shows you how to solve this type of problem in 4D: display any individual piece of information in a very large view with a single action, without altering the form’s existing layout.

Beyond the tool itself—which will improve the usability and user experience of your applications—this practical example is above all an opportunity to explore, step by step, several concepts of the 4D language and interface: creating a class, drawing in SVG, managing form events, and controlling the z-order of objects on the screen.