Translations:Manual:Creating interface tools/7/en

The Graphical User Interface, or GUI, that is, all the part of FreeCAD that is displayed on your screen (the menu, toolbars, 3D view, etc), is all there for that purpose: interact with the user. FreeCAD's interface is built with Qt, a very common open-source GUI toolkit that offers a big range of tools such as dialog boxes, buttons, labels, text input boxes or pull-down menus (all these are generically called "widgets").