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(syms_of_w32fns): Initialize them.
(HOURGLASS_ID): New constant.
(x_window_to_frame): Don't check hourglass_window.
(w32_wnd_proc) <WM_TIMER>: Handle hourglass_timer.
(w32_wnd_proc) <WM_EXITMENULOOP>: Set pending hourglass cursor.
(w32_wnd_proc) <WM_SETCURSOR>: Set the hourglass or current cursor.
(w32_wnd_proc) <WM_EMACS_SETCURSOR>: Set frame's current_cursor.
Only change the cursor if hourglass is not active.
(Fx_create_frame): Initialize frame's current_cursor.
(hourglass_atimer): Remove.
(hourglass_started): New function.
(start_hourglass, cancel_hourglass, hide_hourglass): Adapt to w32.
(show_hourglass): Adapt to w32, changing argument to frame.

* w32term.h (struct w32_output): Remove hourglass_window.
Add current_cursor.

* eval.c (call_debugger, Fsignal):
* keyboard.c (recursive_edit_1, cmd_error, Ftop_level)
(command_loop_1, Fread_key_sequence, Fread_key_sequence_vector)
(Fexecute_extended_command, cancel_hourglass_unwind):
* minibuf.c (read_minibuf):
* fns.c (Fy_or_n_p): Enable hourglass when HAVE_WINDOW_SYSTEM.