Re: [gtk-list] Re: Gtk programming style/advice

[Vandoorselaere Yoann <yoann coldserver com>]

Andy Connor wrote:

> Havoc Pennington wrote:
> >
> > What problems are you having? Are some widgets destroyed while you still
> > have pointers to them?
> >
>
> Not too sure what is going on as yet.
>
> I have a fairly complicated GUI, so rather than create all the widgets
> in one function, I want to split the creation into a number of functions
> - I know that some of the contents will change and this will make it
> easier for me to maintain.
>
> Essentially, I have a 3x3 table, each cell of which contains more
> widgets. One, for example, contains a scrolled window that contains a
> CTree. Another contains a set of toggle buttons, the state of which will
> effect the contents of the CTree.
>
> Everything works fine if I create all the widgets in one function.
>
> However, if I start to split it up and use a structure then it falls
> over almost straight away. Below is the start of the code, which seg
> faults when it tries to create the tree within the main window.
>
> Any comments appreciated.
>
> Andy
>
>

Don't you know that a pointer on a structure need to be alloced ?


int main(int argc, char *argv[]){
    AllWidgets *everything;

+    everything = ( AllWidgets * ) malloc(sizeof(AllWidgets));
+    if ( everything == NULL ) {
+       perror("malloc");
+       exit(1);
+    }

    gtk_init(&argc,&argv);

    CreateMainWindow(everything);
    CreateTable(everything);
    gtk_main();

    return 0;
  }






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