status.i4.v = wn_prepare_dialog_window_c(num_rows.i4.v,

	This routine prepares a graphic screen dialog window.

	num_rows	number of rows for dialog window
	num_columns	number of columns for dialog window
	title		desired dialog window title
			(A value of NULL can be passed for this
			 argument if no title is needed.)

	This function returns ACNET status values as follows:

	OK			success
	CLIB_DUPREQ		dialog window already exists

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	wn_tv_map_c, wn_tv_unmap, wn_calculate_dialog_coordinates_c,
	wn_decide_multiple_c, wn_acknowledge_c, wn_inptxt_c,
	wn_input_string_dialog_c, wn_switch_create_c,
	wn_select_field_init_c, wn_select_field_delete_c,
	wn_select_field_register_c, wn_select_field_read_c,
	wn_select_field_set_c, wn_select_field_set_by_value_c,
	wn_select_field_enable_c, wn_select_field_disable_c,
	wn_select_field_text_to_id_c, wn_select_field_display_info_c

	C/C++ usage:

	static const char	title[] = "My Title";
	int	status;
	int	num_rows = NUM_ROWS;
	int	num_columns = NUM_COLUMNS;

	status = wn_prepare_dialog_window_c(num_rows,num_columns,title);