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8379e6f)
\c void (*draw_update)(void *handle, int x, int y, int w, int h);
\c void (*draw_update)(void *handle, int x, int y, int w, int h);
-This function behaves exactly like the back end \cw{draw_text()}
+This function behaves exactly like the back end \cw{draw_update()}
function; see \k{drawing-draw-text}.
An implementation of this API which only supports printing is
function; see \k{drawing-draw-text}.
An implementation of this API which only supports printing is
Similarly, \c{ym} and \c{yc} specify the vertical position of the
puzzle as a function of the page height: the page height times
Similarly, \c{ym} and \c{yc} specify the vertical position of the
puzzle as a function of the page height: the page height times
-\c{xm}, plus \c{xc} millimetres, equals the desired distance from
+\c{ym}, plus \c{yc} millimetres, equals the desired distance from
the top of the page to the top of the puzzle.
(This unwieldy mechanism is required because not all printing
the top of the page to the top of the puzzle.
(This unwieldy mechanism is required because not all printing