RE: Extra callback parameters

[<martyn 2 russell bt com>]

> Hi,
> I have a callback that is passed one user data item (cdata):
>
> void colour_cb(GtkButton *button, gpointer data)
> {...
> }
>
> g_signal_connect(G_OBJECT(colbutton),"clicked",G_CALLBACK(colo
ur_cb),cdata);
> Is it possible to modify g_object signals so that more than
> one data parameter can be passed like:
>
> void colour_cb(GtkButton *button, gpointer data1, gpointer data2)
> {...
> }
>
> g_signal_connect(G_OBJECT(colbutton),"clicked",G_CALLBACK(colo
ur_cb),cdata1,cdata2);


You can always use this method...:

        g_object_set_data(G_OBJECT(colbutton), "key1", GINT_TO_POINTER(1));
        g_object_set_data(G_OBJECT(colbutton), "key2", GINT_TO_POINTER(2));
        .
        .

then

        int a = 0;

        a = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(colbutton), "key1"));
        b = GPOINTER_TO_INT(g_object_get_data(G_OBJECT(colbutton), "key2"));
        .
        .


Regards,
Martyn