NAME
       GetOPen -- Get the O Pen value for a RastPort (V39).


   SYNOPSIS
       pen = GetOPen  ( rp )
	d0		 a0

	ULONG GetOPen(struct RastPort *)

   FUNCTION
	Return the current value of the O pen for the rastport. This function
	should be used instead of peeking the structure directly, because future
	graphics devices may store it differently, for instance, using more bits.

   INPUTS
       rp  =  a pointer to a valid RastPort structure.

   BUGS

   NOTES

   SEE ALSO
	SetOutlinePen() graphics/gfx.h

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