WINDOW_LEFT_EDGE_COL  236 src/dispnew.c  #define WINDOW_TO_FRAME_HPOS(W, HPOS) ((HPOS) + WINDOW_LEFT_EDGE_COL (W))
WINDOW_LEFT_EDGE_COL 3164 src/dispnew.c    hpos += WINDOW_LEFT_EDGE_COL (w);
WINDOW_LEFT_EDGE_COL  720 src/window.h     (WINDOW_LEFT_EDGE_COL (W) + WINDOW_TOTAL_COLS (W))