Get(WindowDesktopWidth)
Purpose 
Returns the width, in points, of the desktop space.
Format 
Get(WindowDesktopWidth)
Parameters 
None
Data type returned 
number
Originated in 
FileMaker Pro 7.0
Description 
In Windows, the desktop space is the space inside the MDI window (sometimes referred to as the client area).
In OS X, the desktop space is the area on the monitor in which the active window is located excluding menu bars.
In FileMaker WebDirect, the desktop space is the area on the main monitor. In OS X, the main monitor is where the menu bar is located. In Windows, the main monitor is where the taskbar is located.
Note  For information on how functions evaluate differently on the host versus the client, search the FileMaker Knowledge Base available at http://help.filemaker.com.
Examples 
Returns 450 in Windows when there is a single monitor and its MDI is set to 500 x 450.
Returns 600 in OS X when there is a single monitor and its resolution is set to 800 x 600.
Related topics 
Functions reference (category list)
Functions reference (alphabetical list)
About formulas
About functions
Defining calculation fields
Using operators in formulas