Re: [Dev-C++] Offtopic: Advice on GUI to learn

[Daniel K. O. <dan...@ya...>]

Michael C Urban wrote:

>If you use GTK though, be aware that most of its widgets are not thread
>safe in MS Windows. (That's what I mean by buggy. They are thread safe in
>Linux. But you can run into problems on Windows.)
>  
>


Actually, you just can't update the GUI from other threads.


As Tor once said:

[quote from http://mail.gnome.org/archives/gtk-devel-list/2001-November/msg00227.html ]
I understand that in X11 the situation is different as the X server
naturally knows nothing about threads in the client, so as long as the
client (GTK+) itself knows what it is doing and uses appropriate
locking, there shouldn't be any problems in operating on the same
windows or other X11 objects from different threads (?).

But Windows knows the thread that created each window, and some
operations on a window from another thread might cause lots of fun
like deadlocks unless the application programmer is very careful with
what the window owning thread might be doing at the time another
thread tries to operate on the window.
[/quote]


Also, a quote from Tristan:

[quote from http://mail.gnome.org/archives/gtk-app-devel-list/2003-July/msg00015.html ]
you can still write a multi-threaded application with _ONE_THREAD_THAT_UPDATES_THE_GUI_.
[/quote]


You just have to use g_idle_add to make the updates run inside the main 
thread.




Daniel K. O.