to get this support.
@end defop
-@defop {operation+} x-graphics-device source-x-left source-y-top width height destination-x-left destination-y-top
+@defop {operation+} x-graphics-device copy-area source-x-left source-y-top width height destination-x-left destination-y-top
This operation copies the contents of the rectangle specified by
-@var{source-x-left}, @var{source-y-top}, @var{width}, and @{height} to
+@var{source-x-left}, @var{source-y-top}, @var{width}, and @var{height} to
the rectangle of the same dimensions at @var{destination-x-left} and
@var{destination-y-top}.
@end defop