HelenOS sources

font_edit_adjust_ascent  333 uspace/app/fontedit/fontedit.c 		font_edit_adjust_ascent(fedit, -1);
font_edit_adjust_ascent  336 uspace/app/fontedit/fontedit.c 		font_edit_adjust_ascent(fedit, +1);
HelenOS homepage, sources at GitHub