You were right, I've find the problem, the bouton was recreated in an 
other function. So the first button with the data was erased...
Thanks you for your useful help!

Guillaume

Guillaume Charhon a écrit :
> I've checked the adresses, they are not the same.
> The second button is get from a click, and it should be the same adress...
> i don't understand...
> I'm going to make a simple main.c to test, because my project is 
> complicated...
>
> Thanks for your help.
>
> David Nečas (Yeti) a écrit :
>   
>> On Thu, Nov 23, 2006 at 08:37:06PM +0100, Guillaume Charhon wrote:
>>   
>>     
>>> But it's the same button :'( !
>>>     
>>>       
>> Did you really check it's the same object (e.g., printed
>> address, although this is not 100% if the object is
>> destroyed meanwhile) and nothing else set the object data
>> back to 0 -- including things that thought they set data of
>> some other object?
>>
>> Then post compilable code.
>>
>> Yeti
>>
>>
>> --
>> Whatever.
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>>
>>
>>
>>   
>>     
>
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