* window.c (window_internal_width): New function.
* lisp.h (window_internal_height, window_internal_width): Add extern declarations for these. * dispnew.c (direct_output_for_insert, direct_output_forward_char, buffer_posn_from_coords): Use window_internal_width instead of writing out its definition. * indent.c (compute_motion): Doc fix; mention scrollbars and window_internal_width. (pos_tab_offset, Fvertical_motion): Use window_internal_width instead of writing it out. * window.c (Fpos_visible_in_window_p, Fwindow_width, Fscroll_left, Fscroll_right): Same. * xdisp.c (redisplay, try_window, try_window_id, display_text_line): Same.
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