pub unsafe fn post_key(key_code: u16, characters: &str)Expand description
Post a key press and release to whichever window is key.
Window number 0 means “the key window”, which while a menu is tracking is the
menu itself — so an Escape posted here is what dismisses it. Menus read the
event queue directly, so this reaches them without a sendEvent:.
§Safety
Must be called on the main thread.