Re: Completely remove a GtkWidget from Memory

[Tristan Van Berkom <vantr touchtunes com>]

if ((ptr = malloc(size)) != NULL) {
       free(ptr);      
       if (ptr == NULL) {
               /* you have a really freaky problem ;-) */
       }
}

Cheers,
                               -Tristan


Christian Schneider wrote:

> Hallo,
>
> in my programm I've got the following global pointer:
> +++
> GtkWidget *fileselectionfensterglobal; 
> ++
>
>
> I created 3 signals to kill the window:
> +++
> void
> on_fileselectionfensterglobal_destroy  (GtkObject     
> *object, gpointer         user_data)
> {
> ...
>  gtk_widget_destroy (fileselectionfensterglobal);
> }
>
> void
> on_ok_buttonfileselection_clicked  (GtkObject      
> *object, gpointer         user_data)
> {
> ...
>  gtk_widget_destroy (fileselectionfensterglobal);
> }
>
> void
> on_cancel_buttonfileselection_clicked  (GtkObject     
> *object, gpointer         user_data)
> {
> ...
>  gtk_widget_destroy (fileselectionfensterglobal);
> }
> ++
>
>
> Somewhere in the programm I create the window:
> +++
>          fileselectionfensterglobal =
> create_fileselectionfensterglobal ();
>          gtk_widget_show (fileselectionfensterglobal);
> ++
>
> If I "destroy" the window with one of the signal the
> window disappears. Ok so far.
>
> But I think the windows is still in memory because the
> following code is not true:
> +++
> if (fileselectionfensterglobal == NULL){...}
> ++
>
> My question now: How can I completely remove the
> fileselectionwindow (or other windows ;-) ) with all
> Widgets (Buttons etc.) in it from memory because if I
> use the function create_fileselectionfensterglobal ()
> again the old fileselectionwindow-data ist still in
> memory but I do not want to use it anymore!
>
> Perhaps you can give me an example-code for my problem
> above.
>
> Thanks for your help!
> Bye 
>
> Christian Schneider
>
>
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