status.i4.v = hilite_create_c(window_id.i2.v, top_row.i4.v,
				      left_column.i4.v, num_items.i4.v,
				      num_chars.i4.v, num_columns.i4.v,
				      hilite_id.i2.r [,field_length.i4.v]
				      [,field_offset.i4.v] [,separate.i4.v]
				      [,field_orient.i4.v] [,options.u4.v]
				      [,color.i4.v] [,update_func.f.v]

	This routine will create a highlighting region in an alphanumeric
	window which can be serviced by subsequent calls to hilite_update_c.
	This highlighting region remains active until it is removed by
	calling hilite_delete_c.  (Note : If nondefault values are
	passed for "field_length" or "field_offset", the highlighted fields
	should be contained in one column if "field_orient" has a value
	of HILITE_ROW_MAJOR or in one row if it has a value of
	HILITE_COLUMN_MAJOR.)  (Note: When using this routine, the default
	window repaint mode should be set to WMNGR_REPAINT by a call to
	window_restore_hint_c.)  All highlight regions in a window
	are automatically deleted when the window is deleted.

	window_id	window ID for window containing the highlight region
			(use WMNGR_BACKGROUND for background window)
	top_row		top row of highlight region
	left_column	left column of highlight region
	num_items	number of highlight items
	num_chars	number of characters in a highlight item
	num_columns	number of highlight columns
	hilite_id	returned highlight ID
	[field_length]	length of field for checking cursor location
			(default is "num_chars" for HILITE_ROW_MAJOR
	[field_offset]	offset of field for checking cursor location
			(For HILITE_ROW_MAJOR orientation, a positive offset
			 means that the highlighted area will be to the left
			 of the cursor, and a negative offset means that
			 the highlighted area will be to the right of
			 the cursor.)
			(default is 0)
	[separate]	separation between successive highlight columns
			(default is 1)
	[field_orient]	orientation of field for checking cursor location
			(HILITE_ROW_MAJOR -> check in same row (default),
			 HILITE_COLUMN_MAJOR -> check in same column)
			(Note : If HILITE_COLUMN_MAJOR mode is chosen,
			 only one row of highlighted fields should be
	[options]	highlighting options
			(HILITE_OPT_NONE -> no options selected,
			 HILITE_OPT_USER_UPDATE -> update by calls to
						   hilite_update_c (default),
			 HILITE_OPT_AUTO_UPDATE -> automatically update this
						   highlight region,
			 HILITE_OPT_UPDATE_OCCLUDED -> update highlight region
						       even if it is partially
	[color]		highlighting color (Default is HILITE_DEFAULT_COLOR
			which simply inverts the foreground and background
			colors of the text being highlighted.)
			(constants are in cnsparam)
	[update_func]	callback function to be called just before updating
			a new region in auto update mode
			(called as follows:
			 suppress_update.i4.v = update_func(window_id.i2.v,
			("hilite_data" is a structure of type HILITE_UPDATE_DATA)
			(A value of NULL can be passed for this argument
			 if this functionality is not desired.)
	[update_data]	address of data to be passed to "update_func"

	This function returns ACNET status values as follows:

	OK			success
	CBS_NO_SUCH		requested window does not exist
	CBS_INVARG		invalid rows and/or columns
	CBS_MEMFAIL		failed in allocating dynamic memory

	This function requires the following include files:

	cnsparam_h, cbslib_h, acnet_errors_h

	Related functions:

	hilite_simple_row_create_c, hilite_update_c, hilite_delete_c,
	hilite_window_delete_c, hilite_suspend_c, hilite_resume_c,
	window_hilite_c, window_hilite_line_c, window_restore_hint_c,

	C/C++ usage:

	short	window_id = WMNGR_BACKGROUND;
	short	hilite_id;
	int	status;
	int	top_row = 3;
	int	left_column = 1;
	int	num_items = NUM_ROWS;
	int	num_chars = NUM_CHARS;
	int	num_columns = 1;
	int	field_length = NUM_CHARS;
	int	field_offset = 0;
	int	separate = 0;
	int	field_orient = HILITE_ROW_MAJOR;
	unsigned int	options = HILITE_OPT_AUTO_UPDATE;
	void	*update_data = (void *) NULL;
	int	update_func(short window_id, void *update_data,
			    HILITE_UPDATE_DATA *hilite_data);

	status = hilite_create_c(window_id,top_row,left_column,num_items,