Get(WindowContentHeight)
Purpose 
Returns a number representing the height, in pixels, of the FileMaker Pro content area.
Format 
Get(WindowContentHeight)
Parameters 
None
Data type returned 
number
Description 
The content area depends on the current size of the active window but doesn’t include the title bar, scroll bars, zoom controls, and page margins. The content area is the space inside these controls. It does not include the status toolbar if it is currently showing.
Note  For information on how functions evaluate differently on the host versus the client, search the FileMaker Knowledge Base available at www.filemaker.com/kb.
Examples 
Returns 400 in the Mac OS when the current window height is 437 and the status toolbar isn’t showing.
The example below combines Get(WindowContentHeight) with Get(WindowHeight) to determine the size of the title bar and horizontal scroll bar:
Get(WindowHeight) - Get(WindowContentHeight) returns 37 in the Mac OS when the window height is 437 and the status toolbar isn’t showing.
Related topics 
Functions reference (category list)
Functions reference (alphabetical list)
About formulas
About functions
Defining calculation fields
Using operators in formulas