wn_set_plot_symbol(_c)

	status.i4.v = wn_set_plot_symbol(symbol_type.i4.r, size.i4.r
					 [,text_string.i1a.r])

	status.i4.v = wn_set_plot_symbol_c(symbol_type.i4.v, size.i4.v
					   [,text_string.i1a.r])

	This routine defines the type of symbol to be plotted by subsequent
	calls to wn_symbol(_c) for the active graphic window.
 
	symbol_type	type of symbol
			(WN_CIRCLE -> circle,
			 WN_SQUARE -> square,
			 WN_TRIANGLE -> triangle,
			 WN_CROSS -> cross (plus),
			 WN_HORZ_BAR -> horizontal bar,
			 WN_VERT_BAR -> vertical bar,
			 WN_DIAMOND -> diamond,
			 WN_FERMI_LOGO -> Fermi logo,
			 WN_TEXT_SYMBOL -> text string)
	size		size of symbol in pixels
	[text_string]	text string (WN_TEXT_SYMBOL only)
			(default is NULL)

	This function returns ACNET status values as follows:

	OK			success
	CBS_NOSETUP		an active window has not been established
	CBS_INVARG		invalid symbol type or size

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	wn_setsym(_c), wn_symbol(_c), wn_symbol_set, intro_graphics_windows

	C/C++ usage:

	char	*text_string = (char *) NULL;
	int	status;
	int	type = WN_CIRCLE;
	int	size = 3;

	status = wn_set_plot_symbol_c(type,size,text_string);