Re: hide() show() make my program ends

[Bob Caryl <bob fis-cal com>]

cyril ponsan wrote:

> I just tried this :
>
>    Gtk::MessageDialog dialog2(NULL, "\nUne erreur est survenue.");
>
> and i received this on the terminal :
>
> glibmm-ERROR **:
> unhandled exception (type std::exception) in signal handler:
> what: attempt to create string with null pointer
>
> aborting...
>
>
> sigh ...
>
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Ok Cyril,

My little "pass the Gtk::MessageDialog constructor a NULL pointer for 
parent window" idea was bad all around:  The reason you got the NULL 
string exception is that there are a couple of overloaded constructors 
for MessageDialog and using NULL as the first parameter called the one 
that was expecting a Glib::ustring as its first parameter and a boolean 
variable as the second.  Hence the exception.  However, when I created a 
Gtk::Window pointer and set that pointer equal to NULL and passed it to 
the constructor this way:

Gtk::Window *dummy = NULL
Gtk::MessageDialog dialog2(*dummy,"Test string");

The program still seg faults... so I'm as big a dummy as my pointer.

There does not appear to be a way to do this trick (Gtk::MessageDialog 
visible, parent window invisible) so far as I can see.  If I iconify() 
the parent window before calling the dialog2.run() function, both 
windows end up iconified...  so I'm stuck just like you.

Sorry,

Bob Caryl