Version: 2021.1
public static bool imeIsSelected ;

説明

ユーザーが選択したキーボード入力ソースが IME であるかどうか

This returns true if the users keyboard is currently configured for IME input, and false otherwise. Since users of asian languages can typically turn IME conversion on or off using a keystroke, it is useful to provide some visual indication of IME being enabled. This can be done by checking Input.imeIsSelected.