The tables in this section describe user interface events, the user actions that generate the events, and widgets that have default behavior for the events. The term field-level widgets refers to any widgets that can be part of a field group in a frame: fill-ins, sliders, selection lists, toggle boxes, radio sets, editors, rectangles, images, text, buttons, combo boxes, and browse widgets. Frames, dialog boxes, windows, menus (including menu bars and pop-up menus), sub-menus, and menu items can also receive events. Note that there is frequently a distinction made between a browse widget and a single cell in an updateable browse. For the most part, a browse cell behaves as a fill-in widget.