status.i4.v = wn_wide_vector_c(x1.r4.v, y1.r4.v, x2.r4.v, y2.r4.v,
				       width.r4.v, options.u4.v)

	This routine draws a vector with a scalable width from virtual
	coordinates X1,Y1 to virtual coordinates X2, Y2 in a graphical
	window specified by a previous call to wn_active(_c).
	wn_view(_c) and wn_world(_c) must also be called before
	calling this routine.  The color of the vector is determined by
	the most recent call to wn_color(_c).

	x1, y1		real world coordinates of one end of the vector
	x2, y2		real world coordinates of the other end
	width		scalable width value which depends on the real
			world scaling for the active window
			(Note: For horizontal lines, the Y axis scaling
			 is used to determine the width.  Otherwise,
			 the X axis scaling is used.)
	options		vector drawing options (not presently in use)

	This function returns ACNET status values as follows:

	OK			success
	CBS_NOSETUP		an active window has not been established

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	wn_vector(_c), wn_color(_c), wn_user_defined_color_c,
	wn_read_user_defined_color,wn_vector_width(_c), wn_vector_grain(_c),
	wn_view(_c), wn_world(_c), wn_active(_c), wn_flush,

	C/C++ usage:

	int	status;
	unsigned int	options = WN_OPT_NONE;
	float	x1 = 3.0;
	float	y1 = 3.0;
	float	x2 = 8.0;
	float	y2 = 8.0;
	float	width = 1.0;

	status = wn_wide_vector_c(x1,y1,x2,y2,width,options);