FRAME_PIXEL_Y_FROM_CANON_Y 1572 src/window.c     y = FRAME_PIXEL_Y_FROM_CANON_Y (f, ly) + FRAME_INTERNAL_BORDER_WIDTH (f);
FRAME_PIXEL_Y_FROM_CANON_Y 1747 src/window.c   				  (FRAME_PIXEL_Y_FROM_CANON_Y (f, y)