Re: question about dialog boxes

[Satyajit <satyajit kanungo wipro com>]

Hi,
You can create all you buttons while creating the dialog box
and then add  a response signal which will handle the callbacks.
something like this ...(let's say you want a ok and a help button)

static void response_cb(GtkDialog *dialog,  int response_id,  gpointer
data)
{
        if(response_id == GTK_RESPONSE_HELP) {
               //do what you want
         }
         else if (response_id == GTK_RESPONSE_OK) {
                 gtk_widget_destroy(dialog);
        }
}

AboutWindow = gtk_dialog_new_with_buttons( "blah",NULL,0,

GTK_STOCK_HELP,

GTK_RESPONSE_HELP,

GTK_STOCK_OK,

GTK_RESPONSE_OK,
                                                                     NULL);

/* you can add your own buttons also by adding the
 *  "name", and the response ID
 */

 g_signal_connect (G_OBJECT (AboutWindow),
         "response", G_CALLBACK (response_cb),
         NULL);


Satya


Peter Jay Salzman wrote:

> I've got a dialog box that pops up when the user clicks Help | About:
>
>   void CreateAboutDialog(void)
>   {
>      GtkWidget *AboutWindow, *AboutLabel, *OkButton;
>
>      AboutWindow = gtk_dialog_new();
>      AboutLabel = gtk_label_new("blah");
>      OkButton = gtk_button_new_with_label("OK");
>
>      gtk_box_pack_start(GTK_BOX(GTK_DIALOG(AboutWindow)->vbox),
>         AboutLabel, EXPAND, FILL, NO_SPACING);
>      gtk_box_pack_start(GTK_BOX(GTK_DIALOG(AboutWindow)->action_area),
>         OkButton, EXPAND, NO_FILL, NO_SPACING);
>
>      gtk_signal_connect(GTK_OBJECT(OkButton), "clicked",
>            GTK_SIGNAL_FUNC(dialog_callback_delete), AboutWindow);
>
>      gtk_widget_show_all(AboutWindow);
>   }
>
>
>
>   gboolean dialog_callback_delete(GtkWidget *widget, GtkWidget *Dialog)
>   {
>      gtk_widget_destroy(Dialog);
>      return TRUE;
>   }
>
> This works, even though I only slightly know what i'm doing.  The
> problem is that this generates a compiler warning because GtkWidget
> *widget is unused in dialog_callback_delete().
>
> The thing is, I can't take "GtkWidget *widget" out of the function
> parameter list because then Dialog refers to the button, rather than the
> dialog window.  That causes just the button to disappear when you press
> "Ok" rather than the whole dialog box.
>
> What's the correct way of doing this so that gcc doesn't complain about
> unused variables?
>
> Thanks!
> Pete
>
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