PaintRgn
PaintRgn Fill a region with current pen pattern and mode
#include <Quickdraw.h> Quickdraw
void PaintRgn(theRgn );
RgnHandle theRgn ; handle of the region to paint
PaintRgn fills the interior of a region with the current pen pattern, in the
current transfer mode.
theRgn is the handle of a region in the current GrafPort.
Returns: none

Notes: This is a superset of the FillRgn function, in that you get to choose the
transfer mode (see PenMode). Note that if the pen is not visible (see
HidePen), this function has no effect.
PaintRgn doesn't change the pen position.
As with all Quickdraw drawing, the output is clipped to the intersection of
the current GrafPort's BitMap boundary rectangle, the port rectangle,
clipping region, and visible region.