--- title: IKeymanKeyboard::DefaultBCP47Languages Property --- ## Introduction The `IKeymanKeyboard::DefaultBCP47Languages` property returns the [`ðnologuecode`](/developer/language/reference/ethnologuecode) string from the keyboard file. The first language code in the string is the primary language. This is informational data and may not be the same as the currently linked languages for the keyboard. ## Specification ``` clike readonly string DefaultBCP47Languages ```