Re: GUI window creation from a thread

["Miroslav Rajcic" <rajcic sokrates hr>]

You should not create widgets from threads other than the main thread.

To overcome this problem I use idle time processing callback (using 
g_idle_add() method). Basically, you have to create some idle time requests 
queue, that will create and display windows/messages etc. Then you can 
create the request from your thread (and optionally block until some mutex 
signals that the message box you wanted to be shown was closed).

For the details, you can download Atol source code 
(http://atol.sourceforge.net/) and see files ThreadSafeGui and 
ThreadSaveMsgs.

Regards,
 Miroslav

----- Original Message ----- 
From: "Preeti Joshi" <preetijoshi79 gmail com>
To: <gtk-app-devel-list gnome org>
Sent: Monday, January 08, 2007 11:33 AM
Subject: GUI window creation from a thread


> Hi,
>
> Is it not possible to create a GUI window from a thread? I created a 
> thread
> from a button_click callback and from within the thread I need to display 
> a
> popup message . But everytime a GUI operation like widget show or destroy 
> is
> done, it displays following error messages:
> Xlib: unexpected async reply (sequence 0x24e)!
> Xlib: sequence lost (0x10000 > 0x3e3) in reply type 0x0!
>
> What is the get-around for this problem?
> Please help
> Preeti
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