* w32fns.c (hourglass_timer, hourglass_hwnd): New variables.
(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.