tvvlinc (ul_tvcurses)

	status.i4.v = tvvlinc(top_row.i4.v, column.i4.v, num_chars.i4.v,
			      bold.i4.v)

	Draw a vertical line on the background window

	top_row		top row of line
	column		TV column
	num_chars	number of ASCII characters to be written
	bold		bold text flag
			(TRUE -> display bold text,
			 FALSE -> display normal text)

	This function requires the following include files:

	ul_tvcurses_h:tvcurses_h

	Related functions:

	tvmc, tvflshc, tvm_centerc, tvinit, tv_cleanup, tvfillc,
	tvhlinc, tvboxc, tvblnkc, tvceolc, tvceopc, tvclrc,
	rdcursc, tvscrsc, tvrfmtc, tvsetcolorc

	C usage:

	int	status;
	int	top_row = 1;
	int	column = 1;
	int	num_chars = NUM_CHARS;
	int	bold = FALSE;

	status = tvvlinc(top_row,column,num_chars,bold);