HelenOS sources

_real_row          85 uspace/lib/termui/src/termui.c 	((termui)->screen[(termui)->cols * _real_row((termui), (row)) + (col)])
_real_row          91 uspace/lib/termui/src/termui.c 	((termui)->overflow_flags[_real_row((termui), (row))])
_real_row         680 uspace/lib/termui/src/termui.c 		int real_row_offset = _real_row(&old_termui, row) * old_termui.cols;
HelenOS homepage, sources at GitHub