diff --git a/src/proto/window.pro b/src/proto/window.pro
index a7fcf0c..83116c9 100644
--- a/src/proto/window.pro
+++ b/src/proto/window.pro
@@ -32,6 +32,7 @@
 void tabpage_move __ARGS((int nr));
 void win_goto __ARGS((win_T *wp));
 win_T *win_find_nr __ARGS((int winnr));
+tabpage_T *win_find_tabpage __ARGS((win_T *win));
 void win_enter __ARGS((win_T *wp, int undo_sync));
 win_T *buf_jump_open_win __ARGS((buf_T *buf));
 win_T *buf_jump_open_tab __ARGS((buf_T *buf));
@@ -69,6 +70,10 @@
 void check_lnums __ARGS((int do_curwin));
 void make_snapshot __ARGS((int idx));
 void restore_snapshot __ARGS((int idx, int close_curwin));
+int switch_win __ARGS((win_T **save_curwin, tabpage_T **save_curtab, win_T *win, tabpage_T *tp));
+void restore_win __ARGS((win_T *save_curwin, tabpage_T *save_curtab));
+void switch_buffer __ARGS((buf_T **save_curbuf, buf_T *buf));
+void restore_buffer __ARGS((buf_T *save_curbuf));
 int win_hasvertsplit __ARGS((void));
 int match_add __ARGS((win_T *wp, char_u *grp, char_u *pat, int prio, int id));
 int match_delete __ARGS((win_T *wp, int id, int perr));