Using scanw Ncurses in D lang

[Gabol via Digitalmars-d-learn]

how can I use the scanw() function; of the ncurses of the 
deimos.ncurses project since the conventional mode does not work
example: scanw("% i", & number); // The compiler accuses error.
Error: function deimos.ncurses.curses.scanw(char* fmt, ...) is 
not callable using argument types (string, int*)
source/app.d(8,14):        cannot pass argument "0" of type 
string to parameter char* fmt
/usr/bin/dmd failed with exit code 1.