screen_row.i4.v = screen_row(window_id.i2.r, row.i4.r)

	screen_row.i4.v = screen_row_c(window_id.i2.v, row.i4.v)

	This routine converts a window row value into a screen row
	value.  If the window does not exist, a value of CBS_NO_WINDOW
	will be returned.

	window_id	window ID (use WMNGR_BACKGROUND for background window)
	row		row to be converted

	This function returns status values as follows:

	CBS_NO_WINDOW		requested window does not exist
	otherwise		equivalent screen row

	This function requires the following include files:

	cbslib_h, acnet_errors_h

	Related functions:

	screen_column(_c), window_row(_c), window_column(_c), intro_tv_windows

	C/C++ usage:

	short	window_id;
	int	screen_row;
	int	row = 1;

	screen_row = screen_row_c(window_id,row);