# keyboardSetUnicodeString(stringLength:unicodeString:) Sets the Unicode string associated with a Quartz keyboard event. ``` func keyboardSetUnicodeString(stringLength: Int, unicodeString: UnsafePointer?) ``` ## Parameters `stringLength` The length of the array you provide in the `unicodeString` parameter. `unicodeString` An array that contains the new Unicode string associated with the specified event. ## Discussion By default, the system translates the virtual key code in a keyboard event into a Unicode string based on the keyboard ID in the event source. This function allows you to manually override this string. Note that application frameworks may ignore the Unicode string in a keyboard event and do their own translation based on the virtual keycode and perceived event state. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)