Re: Getting a hourglass cursor

["Jan Djärv" <jan.h.d@swipnet.se>]

Eli Zaretskii skrev:
>> Date: Tue, 15 Sep 2009 20:15:29 +0800
>> From: Jason Rumney <jasonr@gnu.org>
>> CC: emacs-devel@gnu.org
>>
>> Eli Zaretskii wrote:
>>> The case in point is "C-h H", which (at least on Windows) takes an
>>> annoyingly long time.
>>>   
>> On Windows, we don't support asynchronous timers, so the hourglass will 
>> only display if we spend a long time executing lisp code. C-h H is 
>> spending time doing redisplay (specifically finding fonts to display the 
>> various scripts), so the hourglass does not display.
> 
> Sorry, I'm not sure I understand: are you saying that "C-h H" _will_
> display the hourglass cursor on X?  If so, where's the code that
> starts the atimer which, when expires, will display the hourglass?
> Can you (or someone else) please verify that the hourglass is indeed
> displayed on X?

Well, not for C-h H here, it is too fast.  But (sleep-for 10) does indeed
start an hourglass.  The code that starts it is in xdisp.c.

For W32, it is in w32fns.c.


> 
> AFAICS, the code which sets this atimer is in start_hourglass.  But if
> that is true, all the calls to start_hourglass are made on Windows as
> well, and the hourglass should display on Windows as it does on other
> platforms.  What am I missing?
> 

Don't know.

	Jan D.