Screen.WorkingArea Property  
Definition
Important
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Gets the working area of the display. The working area is the desktop area of the display, excluding taskbars, docked windows, and docked tool bars.
public:
 property System::Drawing::Rectangle WorkingArea { System::Drawing::Rectangle get(); };public System.Drawing.Rectangle WorkingArea { get; }member this.WorkingArea : System.Drawing.RectanglePublic ReadOnly Property WorkingArea As RectangleProperty Value
A Rectangle, representing the working area of the display.
Remarks
The working area is the desktop area of the display, excluding taskbars, docked windows, and docked tool bars.
WorkingArea will return the entire area of the screen if the Windows Taskbar is set to Auto-Hide, no matter whether the Taskbar is currently displayed or not.