list, take one USER_DATA argument.
(foreach_window_1): Likewise, and call callback functions with two
args, the window and USER_DATA.
(struct check_window_data): New struct.
(check_window_containing): Use it.
(window_from_coordinates): Set up a struct check_window_data for
foreach_window.
(add_window_to_list, freeze_window_start): Change parameters
according to new calling convention.
(window_list): Order list so that, for each frame, windows are
in canonical order, and so that frames appear in the list in
the order given by Vframe_list.
(next_window): Reverse the handling of NEXT_P.
(make_window, delete_window): Set Vwindow_list to nil.
(check_window_containing): New function.
(window_from_coordinates): Rewritten.
(add_window_to_list, window_list, candidate_window_p)
(decode_next_window_args, next_window): New functions.
(Fnext_window, Fprevious_window): Rewritten in terms of
next_window.
(Fwindow_list): New function.
(Fother_window): Cleaned up.
(foreach_window): Add a longer "variable argument list". Let
callback function return 0 to indicate that cycling over windows
should stop.
(foreach_window_1): Likewise.
(freeze_window_start): Return int.
(init_window): New function.
(syms_of_window): Staticpro Vwindow_list and defsubr Swindow_list.
with int lvalues via casts; instead, just yield lisp object
lvalues.
(enlarge_window): Variable sizep now points to Lisp_Object. Use
proper accessor macros.
(shrink_window_lowest_first): w->top is Lisp_Object; use XINT.
(grow_mini_window): Fix typo getting int value of root->height.
don't "swap out" the buffer's point.
(Fset_window_configuration): Set selected_window to nil
before calling Fselect_window.
(unshow_buffer): Don't set point in buffer from window's point
if another more recently selected window also shows the buffer.
(save_restore_orig_size): Change parameter list. Add
functionality to check for valid orig_top and orig_height members
in a window tree.
(grow_mini_window): Call save_restore_orig_size with new parameter
list.
(shrink_mini_window): Restore old window sizes only if old
size information is valid in all windows in a window tree.
selected_window.
(Fdisplay_buffer): Call it with window parameter instead of
setting selected_window.
(Fenlarge_window, Fshrink_window): Ditto.
(shrink_mini_window): If there is no recorded height and position
info, resize mini-window to height 1.
(change_window_height): Call window_min_size with new parameter.
(shrink_window_lowest_first, save_restore_orig_size,
grow_mini_window, shrink_mini_window): New.
(make_window, replace_window): Initialize orig_top and
orig_height.
(enlarge_window): Renamed from change_window_height. Make it
static.
(Fdisplay_buffer, Fenlage_window, Fshrink_window): Call
enlarge_window instead of change_window_height.
and `right-bitmap-area' if position is in the bitmap areas. This
avoids an error when clicking on the bitmap areas. Instead, they
are currently treated like clicks inside the window.
(coordinates_in_window): Return 5 and 6 for bitmap areas.
(Qleft_bitmap_area, Qright_bitmap_area): New.
(syms_of_window): Initialize new symbols.
(syms_of_window): Initialiaze it.
(check_all_windows): Add return type void.
(window_fixed_size_p): New. Return non-zero if window
is fixed-size.
(window_min_size_1): New.
(window_min_size): Handle fixed-size windows.
(size_window): New. Rewritten combination of set_window_height and
set_window_width that handles fixed-size windows.
(set_window_height): Call it.
(set_window_width): Call it.
(Fsplit_window): Give an error on attempt to split a fixed-size
window.
(change_window_height): Partly rewritten to handle fixed-size
windows.
If window starts out "too small", set its too_small_ok flag.
If window's too_small_ok flag is set, don't delete it
unless it is so small it would cause a crash.
