what's window dump?

[br00369 at bingsuns.cc.binghamton.edu]

Does everyone  know how I can use the file generated by the "window 
dump" function in DISPLAY TOOL, XGRASS4.1?  To view it or print?  How? It 
seems a binary file.
        Any advance will be appreciated.
 

 
 Peter Wu
 
 Department of Geological and Environmental Studies
 State University of New York at Binghamton