Colossus <[EMAIL PROTECTED]> writes:
> Annamalai Gurusami wrote:
>
>> g_signal_connect( G_OBJECT(AddFile_button), "clicked",
>> G_CALLBACK(on_add_files_activate), "dummy");
>> The actual parameters of the callback function is determined by the
>> event and the widget handling the event. Here you are handling the
>> "clicked" event for a GtkButton. And for this event, the prototype of
>> the callback handler is
>
> I just tried to replace gpointer with G_OBJECT but nothing to do, the
> value dummy is never received by the function. I must use two
> parameters and get rid of the first one to receive the value dummy.
You took two *separate* comments, joined it together, and now
complaining that my "suggestion" didn't work!! Funny! :-D
What I was suggesting is that
g_signal_connect( G_OBJECT(AddFile_button), "clicked",
G_CALLBACK(on_add_files_activate), "dummy");
is better than
g_signal_connect( (gpointer)AddFile_button, "clicked",
G_CALLBACK(on_add_files_activate), "dummy");
because G_OBJECT does some type checking. This has nothing to do with
the semantics of callback functions.
Rgds,
anna
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