GraphResult will return a value that reports the status of the last
    call to a graphics routine.


              0 : No Error
             -1 : (BGI) graphics not installed (use InitGraph)
             -2 : Graphics hardware not detected
             -3 : Device driver not found
             -4 : Invalid device driver file
             -5 : Not enough memory to load driver
             -6 : Out of memory to scan fill
             -7 : Out of memory inflood fill
             -8 : Font file not found
             -9 : Not enough memory to load font
             -10 : Invalid graphic mode for selected driver