[comp.sys.ibm.pc] BGI question

zimmer@Shasta.STANFORD.EDU (Andrew Zimmerman) (11/01/88)

The following is a section of code written for the BGI (Borland
graphics interface)

setfillstyle(EMPTY_FILL,getmaxcolor());
fillpoly(4,points); /* points is an array of the corners of a polygon */

The Turbo C manual (1.5 and 2.0) states
    EMPTY_FILL uses the current background color.

Does this mean that the above code will draw a polygon and fill the
interior of the polygon with the background color, or does it draw
the border of a polygon and leave the interior as is? (ie, is the
interior overwritten)

Another question I have has to do with getimage() and putimage().
I would like to create an image offscrren, and then use putimage to
move it quickly to the screen.  Is there any way to do this without
using any video memory or getimage()?

Thanks 
Andrew Zimmerman
zimmer@umunhum.stanford.edu