Components All New MacOS Windows Linux iOS
Examples Mac & Win Server Client Guides Statistic FMM Blog Deprecated Old


Queries window's toolbar height.

Component Version macOS Windows Linux Server iOS SDK
Window 8.3 ✅ Yes ✅ Yes ❌ No ❌ No ❌ No
MBS( "Window.TopHeight"; WindowRef { ; WithFrame } )   More


Parameter Description Example Flags
WindowRef Window Reference is the unique OS level window ID. You can obtain this by using the Window.FindByTitle or Window.FindByIndex functions. Pass zero to access the frontmost window. 0
WithFrame Whether to include frame on Mac.
Pass 1 to include frame. Default is 1 to include it.
0 Optional


Returns number or error.


Queries window's toolbar height.
This is the height for any toolbars between content and the window top border.

On MacOS without frame, the top height is for example about 50 pixels for two toolbars in the window. With Frame, you include 81 pixels for toolbar and window title. So top height can be 131 as an example.

Ruler is not included in that height, as it's part of FileMaker's content.

See also

Release notes

Blog Entries

This function checks for a license.

Created 5th June 2018, last changed 14th July 2018

Window.ToggleFullScreen - Window.Update