The @code{ps}, @code{eps}, and @code{svg} backends support this
option.
+@item gui
+Runs silently and redirect all output to a log file.
+
+Note to Windows users: By default @code{lilypond.exe} outputs all
+progress information to the command window, @code{lilypond-windows.exe}
+does not and returns a prompt, with no progress information, immediately
+at the command line. The @code{-dgui} option can be used in this case
+to redirect output to a log file.
+
+
@item print-pages
Generate the full pages, the default. @code{-dno-print-pages} is
useful in combination with @code{-dpreview}.