126       if(screen->damaged.start_col > rect.start_col)  in damagerect()
127         screen->damaged.start_col = rect.start_col;  in damagerect()
163     .start_col = 0,  in damagescreen()
192     .start_col = pos.col,  in putglyph()
208      dest.start_row == 0 && dest.start_col == 0 &&  // starts top-left corner  in moverect_internal()
220   int cols = src.end_col - src.start_col;  in moverect_internal()
236     memmove(getcell(screen, row, dest.start_col),  in moverect_internal()
237             getcell(screen, row + downward, src.start_col),  in moverect_internal()
266     for(int col = rect.start_col; col < rect.end_col; col++) {  in erase_internal()
346   else if(rect.start_col <= screen->damaged.start_col &&  in scrollrect()
493         .start_col = 0,  in resize()
521       .start_col = old_cols,  in resize()
537           .start_col = 0,  in resize()
559       .start_col = 0,  in resize()
655     for(int col = rect.start_col; col < rect.end_col; col++) {  in _get_chars()
853   if(extent->start_col < 0)  in vterm_screen_get_attrs_extent()
854     extent->start_col = 0;  in vterm_screen_get_attrs_extent()
860   for(col = pos.col - 1; col >= extent->start_col; col--)  in vterm_screen_get_attrs_extent()
863   extent->start_col = col + 1;  in vterm_screen_get_attrs_extent()