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Queries the principal item identifier.

Component Version macOS Windows Server FileMaker Cloud FileMaker iOS SDK
TouchBar 6.5 Yes No No No No

MBS( "TouchBar.GetPrincipalItemIdentifier"; TouchBarRef )


Parameter Description Example value
TouchBarRef The reference number for the touch bar. $TouchBar


Returns text or error.


Queries the principal item identifier.
Specifying a principal item identifier communicates that the item with that identifier has special significance to this touch bar. Currently, that item will be placed in the center of the resolved touch row. Note that multiple visible bars may each specify a principal item identifier - but only one of them can have the request honored.

See also

TouchBar.GetItemIdentifiers   -   TouchBar.Release

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