# keyboardGetUnicodeString(maxStringLength:actualStringLength:unicodeString:) Returns the Unicode string associated with a Quartz keyboard event. ``` func keyboardGetUnicodeString(maxStringLength: Int, actualStringLength: UnsafeMutablePointer?, unicodeString: UnsafeMutablePointer?) ``` ## Parameters `maxStringLength` The length of the array you provide in the `unicodeString` parameter. `actualStringLength` A pointer to a `UniCharCount` variable. On return, the variable contains the actual count of Unicode characters in the event data. `unicodeString` A pointer to a `UniChar` array. You are responsible for allocating storage for the array. On return, your array contains the Unicode string associated with the specified event. ## Discussion When you call this function and specify a `NULL` string or a maximum string length of 0, the function still returns the actual count of Unicode characters in the event data. --- 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)