Re: [Gtk2hs-devel] [resolved] Gtk-WARNING **: Invalid text buffer iterator

[Axel S. <Axe...@in...>]

Ah, ok, in response to my own mail: I've added a comment to the  
bufferInsertText signal which explains your problem:

-- | Some text is inserted. Insertion actually occurs in the default  
handler.
--
-- * The function connected to this handler may not modify the buffer  
since
--   this would invalidate the iterator. If this function replaces the
--   default handler, it needs to stop the emission of this signal in  
order
--   to prevent the default handler from running. If additional text  
should
--   be inserted, this can be done using the 'after' function to  
connect.
--
bufferInsertText :: TextBufferClass self => Signal self (TextIter ->  
String -> IO ())


Cheers,
Axel

On 13.03.2012, at 07:11, Rouan van Dalen wrote:

> Hi everyone.
>
> I found the problem.  Because I was using `on` to hook up my signal  
> handler it
> executed before the default signal handler.
>
> just changed my code to use `after` to hook up signal handler and  
> everything is
> working as expected now.
>
> Regards
> Rouan
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