FrameRgn
RgnHandle theRgn ; handle of the region to outline FrameRgn draws an outline just inside the specified region, using the current pen size, pattern, and transfer mode.
theRgn is the handle of a region.
Notes: As with all Framexxx functions, this draws entirely inside the borders of
the figure. For example:
FrameRgn doesn't change the pen location. The interior of the region (inside the frame) is not affected.
outside of theRgn .
As with all Quickdraw drawing, the output is clipped to the intersection of
the current GrafPort's boundary rectangle, port rectangle, clipping region, and visible region.