FrameRect
Rect *theRect ; rectangle to frame FrameRect draws an outline just inside of the borders of a rectangle. The lines are drawn using the current mode, pattern, and size of the pen.
theRect is the address of an 8-byte Rect structure, defined in the local coordinate system.
Notes: As with all Framexxx functions, this draws inside of the borders of
theRect . For example:
FrameRect doesn't change the pen location. Note that with a wide pen, this operation is very different from simply using four LineTo calls (which would draw below and to the right of each corner).
outline of the rectangle.
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.