13. A user interface presented by a computing device having a processor, a memory, and a handwriting input device, the user interface comprising: a candidate window that is configured to present one or more of a recognition candidate and a prediction candidate, the recognition candidate being determined by a recognition engine executed by the processor and based on a received handwriting input, the prediction candidate being determined based on the recognition candidate and one or more of an input history and a lexicon of phrases; an edit field that displays a text string that includes one or more of the recognition candidate and the prediction candidate; one or more function keys configured to execute a respective function when selected; and an input window associated with the handwriting input device and configured to toggle a handwriting input panel for receipt of a handwriting input, the input window having a first area and the handwriting input panel having a second area larger than the first area, the handwriting input panel overlying the candidate window and the one or more function keys.
13. A user interface presented by a computing device having a processor, a memory, and a handwriting input device, the user interface comprising: a candidate window that is configured to present one or more of a recognition candidate and a prediction candidate, the recognition candidate being determined by a recognition engine executed by the processor and based on a received handwriting input, the prediction candidate being determined based on the recognition candidate and one or more of an input history and a lexicon of phrases; an edit field that displays a text string that includes one or more of the recognition candidate and the prediction candidate; one or more function keys configured to execute a respective function when selected; and an input window associated with the handwriting input device and configured to toggle a handwriting input panel for receipt of a handwriting input, the input window having a first area and the handwriting input panel having a second area larger than the first area, the handwriting input panel overlying the candidate window and the one or more function keys. 19. The user interface of claim 13 , wherein the handwriting input panel is toggled for presentation by an input to the input window.