Focus - Function Summary
Focuses key events on a specific face.
face - The face argument.
/no-show - The no-show refinement.
Specify that the face is to receive keyboard input. Normally used with the FIELD and AREA styles.
Only one face can have the focus at a time. The focus can be changed at an time by calling the FOCUS function with a new face. To remove the focus, call the UNFOCUS function.
Focus is set automatically when a user clicks on a text face.
unfocus - Removes the current key event focus.