'In-place completion' allows the user to select from a list of possible completions displayed in a special non-modal window which appears in front of an input pane (such as an
) but does not grab the input focus. Certain gestures including
operate on the special window and allow selection of an item. The user can also continue typing her input in which case the list of possible completions is updated to reflect the text in the input pane.
CAPI User Guide (Unix version) - 30 Aug 2011