Re: [gtk-list] Swapping label text?

["Emmanuel DELOGET" <pixel epita fr>]

>Could someone help me. This is driving me crazy...
>
>I need a dead simple bit of code that take two GtkLabels and swaps the
>text from one to the other, and vice versa.
> [snipped]
>i.e. the label text moves from the second to the first, but this doesn't
>work in the reverse direction.
>
>Here's the code:
>-------------------------------------------------------
>  gchar *tt;
>  gchar *ss;
>
>  gtk_label_get (GTK_LABEL (label1), (gchar **) & tt);
>  gtk_label_get (GTK_LABEL (label2), (gchar **) & ss);


    You get the pointer... right. tt contains the address of the
    label string

>
>  gtk_label_set (GTK_LABEL (label1), (gchar *) ss);

    The label string in label1 is destroyed.


>  gtk_label_set (GTK_LABEL (label2), (gchar *) tt);

    And since tt points on it, tt now contains garbage...


    What you can do is:

        gchar *tt, *ss;

        gtk_label_get(GTK_LABEL(label1), &tt);
        tt = strdup(tt);
        gtk_label_get(GTK_LABEL(label2), &ss);
        gtk_label_set_text(GTK_LABEL(label1), ss);
        gtk_label_set_text(GTK_LABEL(label2), tt);
        free(tt);

    BTW, you don't need to cast &xx to (gchar **), since
    &xx IS a gchar **.

    Yours,

    pixel@epita.fr

>--------------------------------------------------------
>Tom.
>--
>            .-------------------------------------------------------.
>    .^.     | Tom Gilbert, England | tom@tomgilbert.freeserve.co.uk |
>    /V\     |----------------------| www.tomgilbert.freeserve.co.uk |
>   // \\    | Sites I recommend:   `--------------------------------|
>  /(   )\   | www.freshmeat.net www.enlightenment.org www.gnome.org |
>   ^^-^^    `-------------------------------------------------------'
>
>--
>To unsubscribe: mail -s unsubscribe gtk-list-request@redhat.com < /dev/null
>
>