-data => string
     Specifies the contents of the source bitmap as a string.  The
     string must adhere to X11 bitmap format (e.g., as generated by the     bitmap program).  If both the -data and -file options are
     specified,the -data option takes precedence.

    -file => name
     name gives the name of a file whose contents define the source bit     map.  The file must adhere to X11 bitmap format (e.g., as generated
     by the bitmap program).