The current text input position used by IMEs to open windows.
Note: This API is part of the legacy Input class, and not recommended for new projects. The documentation is provided here to support legacy projects that use the old Input Manager and Input class. For new projects you should use the newer and Input System Package. (read more).
Some language IMEs such as Japanese will open windows while the user is typing text, to aid the user
in picking the correct input strings. These windows are expected to pop up at the current cursor position,
so the IME needs to know where input is displayed. When using Unity's built in GUI system for text input,
Unity will take care of setting the cursor position for the IME. However, if you wish to implement your
own GUI for text input, you need to set this to the current text input position for IME windows to
show up correctly.
Additional resources: Input.imeCompositionMode, Input.compositionString.