UIHANDLER OnKeyUp

Fires when releasing a key.
 (self, key)
== Arguments ==
; self: - The widget receiving input.
; key: - The key represented by a UTF-8 character or a control word such as "ESCAPE", "BACKSPACE", and "LSHIFT".
== Details ==
* Usually follows when set; however, blocked by the WoW client losing focus (alt-tab) or if the OnKeyDown handler calls 
* Requires , which another Frame can block with .
* also requires .
== See also ==
* Creating key bindings - An alternative more suited to handling game actions.