Get(WindowDesktopHeight)
Purpose 
Returns the height, in points, of the desktop space.
Format 
Get(WindowDesktopHeight)
Parameters 
None
Data type returned 
number
Originated in 
FileMaker Pro 7.0
Description 
In Windows, the desktop space is the area inside the MDI window (sometimes referred to as the client area). This doesn’t include any virtual space available through the scrolling of the MDI window.
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 //help.filemaker.com.
Examples 
Returns 956 in Windows when there is a single monitor and its MDI is set to 1280 x 1024.
Returns 1178 in OS X when there is a single monitor and its resolution is set to 1900 x 1200.
Related topics 
Functions reference (category list)
Functions reference (alphabetical list)
About formulas
About functions
Defining calculation fields
Using operators in formulas