wn_text(_c)

	status.i4.v = wn_text(x.r4.r, y.r4.r, text.i1a.r, num_chars.i4.r)

	status.i4.v = wn_text_c(x.r4.v, y.r4.v, text.i1a.r, num_chars.i4.v)

	This routine draws a text string at virtual coordinates X,Y in a
	graphics 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 text is determined by the most recent
	call to wn_color(_c).

	x, y		real world coordinates of lower left hand
			corner of text string  (If text character scaling
			is selected with a call to wn_text_scaling_c,
			the following special coordinate values are supported.
			A value of WN_CENTER_IT for either coordinate will
			center the text relative to the active window for that
			plane.  A value of WN_JUSTIFY_MIN or WN_JUSTIFY_MAX
			will align the text to the minimum or maximum
			respectively of the corresponding axis.)
	text		text string to be displayed
	num_chars	length of text string (Note: If a value of 0 is
			passed, characters will be displayed until a
			null character is encountered.)

	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_color(_c), wn_text_size(_c), wn_text_rotation(_c),
	wn_text_attributes_c, wn_text_scaling_c, wn_display_value(_c),
	wn_printf_at_c, wn_blank_c, wn_external_text(_c), wn_colored_text_c,
	wn_external_colored_text_c, wn_external_display_value_c,
	wn_read_text_format, wn_set_background_format_c,
	wn_read_background_format, wn_flush, intro_graphics_windows

	C/C++ usage:

	static const char	text[] = "Text";
	int	status;
	int	num_chars = TEXT_LENGTH;
	float	x = 1.0;
	float	y = 1.0;

	status = wn_text_c(x,y,text,num_chars);