Overview

The TAppBar class is a Visual Basic class, that lets your form to behave like an Application Desktop Toolbar (i.e. to dock on the edges of the screen like the Windows 95/NT Taskbar).

"An application desktop toolbar (or an appbar for short) is a window that attaches itself to an edge of your screen. (The shell’s taskbar window is a well-known example of an appbar). Though appbars are usually docked on an edge of the user's screen, they also can float. To make room for an appbar that's docked, the Windows 95/NT shell shrinks the size of the screen's workarea. The workarea is the portion of the screen that is not occupied by any appbars. Whenever the user maximizes a window, the system ensures that the window fills the workarea, not the full screen. If an appbar is docked on the edge of the screen, moved from one edge of the screen to another, or removed from an edge of the screen, the system automatically resizes and repositions any maximized windows so that they always fill the workarea completely. In addition, when the upper-left corner of the workarea changes, the system shifts all the application windows on the screen so that they always maintain their relative distance from that corner." (J. Richter, 'Extend the Windows 95 Shell with Application Desktop Toolbars', MSDN)