In the Korean Operating System, application subwindows contain two areas that are used to enter Korean characters. A lookup choice window and an auxiliary window are also available in Korean input mode.
Preedit area – The text entry area that holds your character formations before you commit them.
When you commit characters, the characters are put in the text block that is assembled for the application.
Status area – The area at the lower left of the application subwindow that displays the current conversion mode and the active keyboard. Later sections in this chapter discuss keyboard switching and using the available conversion modes.
Lookup choice window – A popup window that displays Hanja or special character lookup choices which are available for the conversion of characters or radicals in the preedit area.
Auxiliary window – This window contains a palette of icons that you can click to make the following choices:
Select your input mode
Toggle between the full_width and the half_width character modes
Convert Hangul characters in the preedit area to Hanja
Select your virtual keyboard