Reference > Functions reference > Get functions > Get(ActiveModifierKeys)
 
Get(ActiveModifierKeys)
Purpose 
Returns a number for the keyboard modifier keys being pressed.
Format 
Get(ActiveModifierKeys)
Parameters 
None
Data type returned 
number
Originated in 
FileMaker Pro 6.0 or earlier
Description 
The number returned is calculated by summing numbers representing each modifier key (for example, Control+Shift) being pressed. The values assigned to the keys are:
Shift = 1
Caps Lock = 2
Ctrl (Windows) and Control (macOS) = 4
Alt (Windows) and Option (macOS) = 8
Command (macOS) = 16
Notes 
In FileMaker WebDirect, this function is not supported and returns 0.
Examples 
Returns 9 when Shift+Alt is pressed on a computer running Windows.
You could use this function in a script that includes a custom dialog box script step (with an OK and Cancel button) to perform some special action if the user presses the Alt (or Option) key while clicking OK.
Related topics 
Functions reference (category list)
Functions reference (alphabetical list)
About formulas
About functions
Defining calculation fields