Multi-threaded GUI

[Gor Gyolchanyan]

On Wed, Jul 25, 2012 at 10:50 PM, Simon <s.d.hammett at gmail.com> wrote:

> On 25/07/2012 19:34, Gor Gyolchanyan wrote:
>
>> Hi!
>>
>> I'm trying to write a WinAPI example to have multi-threaded GUI. I wanna
>> have a Window class, which creates a window and listens to its messages
>> in a separate thread when constructed.  This will allow me to write a
>> main function like this:
>>
>> void main()
>> {
>>      Window w = new Window;
>>      w.move(100, 200);
>>      w.resize(800, 600);
>>      w.show();
>> }
>>
>> The methods called for the window will send asynchronous messages, which
>> will cause the window to change its position, size and visibility
>> on-the-fly. This is convenient, because no message loop needs to be
>> launched separately and every window will rocess its messages in a
>> separate thread.
>>
>> Can anyone please tell me how to achieve this?
>>
>> --
>> Bye,
>> Gor Gyolchanyan.
>>
>
> It depends exactly on what you are trying to do, but in general:
>
> You have to be very, very careful with trying to do multi threading w/
> windoze windows. Try doing a google search on it, and the advice is
> invariably: don't do multi threaded windows. Everybody including people
> famous for their in-depth window knowledge recommends a single thread UI
> with non-UI worker threads.
>
> Having completely separate top level windows each in it's own thread is
> ok, but if you want to have a parent/child relation between windows in
> different threads, then you can not use any thread synchronisation
> primitives all at other than MsgWaitForMultipleObjectsEx, otherwise you
> will have a guaranteed deadlock. In which case you'd have to do all of the
> threading your self and not use anything in phobos.
>
> --
> My enormous talent is exceeded only by my outrageous laziness.
> http://www.ssTk.co.uk
>
>
>
I see. Thanks for the reply. Somehow I suspected this to be the case.

-- 
Bye,
Gor Gyolchanyan.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puremagic.com/pipermail/digitalmars-d/attachments/20120725/97584a5c/attachment.html>