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


Enables checking variable declarations in FileMaker Scripts.

Component Version macOS Windows Linux Server iOS SDK
SyntaxColoring 3.5 ✅ Yes ❌ No ❌ No ❌ No ❌ No
MBS( "SyntaxColoring.CheckVariableDeclaration.Enable" )




Returns OK on success.


Enables checking variable declarations in FileMaker Scripts.
Settings are saved in preferences files and you can use different settings in different FileMaker versions.
Works with FileMaker 11 or newer.

Checking variable declarations can only be enabled in FileMaker Pro, not in server or runtime versions.
By default this is off. It takes some additional CPU time for drawing the script and not everyone may want to have it on. Of course the extra work for the CPU should not be noticeable to the developer. Variable names declared inside Let commands are not recognized.
May only work in Advanced version of FileMaker.

You can declare variables in comment when writing @parameter, @variable or @constant in the comment followed by variable name. Shorter @param, @var and @const also work and you can declare multiple variables in one line.

On macOS Ventura, when you scroll with errors shown, you may see redraw issues.


Enable or disable checking variable declarations:

If (Enable)
      Set Variable [$r; MBS( "SyntaxColoring.CheckVariableDeclaration.Enable" )]
      Set Variable [$r; MBS( "SyntaxColoring.CheckVariableDeclaration.Disable" )]
end if

Use @variable to declare variable:

# Declare variable via comment as plugin has no way to know easily that $test is defined here
# @variable $test
Insert Current Time [ Select ; Target: $test ]

Declare variable via comment:

# Declare variables via comment as plugin has no way to know easily that $test is defined here
# @parameter $param1
# @parameter $param2
Set Variable [ $r ; Value: Let ( [ parameters = Get(ScriptParameter); $param1 = GetValue(parameters; 1); $param2 = GetValue(parameters; 2) ] ; 1 ) ]

Declare multiple variables:

# @var $FirstName, $LastName, $City

See also

Blog Entries

This function is free to use.

Created 18th August 2014, last changed 10th October 2023

SyntaxColoring.CheckVariableDeclaration.Disable - SyntaxColoring.CheckVariableDeclaration.Enabled

💬 Ask a question or report a problem