[gtkmm] Dialog Problem

[Gene Ruebsamen <gene erachampion com>]

Hello,

I am having a problem with a class I've derived from Gtk::Dialog.
The problem is that I cannot call the run() method on any objects derived from 
Gtk::Dialog.  I get the following compiler error trying to do so:

---- output from mingw ---- [gcc 3.2]
d:/dev-cpp/include/gtkmm-2.0/gtkmm/dialog.h: In member function `virtual void 
   DropMenu::on_help_about(MainWindow*)':
d:/dev-cpp/include/gtkmm-2.0/gtkmm/dialog.h:196: `int Gtk::Dialog::run()' is 
   inaccessible
mainwindow.cpp:52: within this context
---------------------------

my class is setup as follows:

// ----------- optionDialog class -----------
class optionDialog : public Gtk::Dialog
{
public:
  OptionDialog::OptionDialog(const Glib::ustring &, Gtk::Window &);
  virtual OptionDialog::~OptionDialog();

protected:
  ...  // misc signal handlers & widgets
  Gtk::Button *m_Button_Ok, *m_Button_Cancel;
}

optionDialog::optionDialog(const Glib::ustring &title, Gtk::Window &parent) :
Gtk::Dialog(title,parent)
{
  m_Button_Cancel = add_button(Gtk::Stock::CANCEL,Gtk::RESPONSE_CANCEL);
  m_Button_Ok = add_button(Gtk::Stock::OK,Gtk::RESPONSE_OK);
}

// --------------- main app window ----------------
class MainWindow : public Gtk::Window
{
public:
  MainWindow();
  virtual MainWindow::~MainWindow();
protected:
  ... // misc signal handlers & widgets
  virtual void on_option_dialog();
  
  optionDialog *m_optionDialog;
}

MainWindow::MainWindow()
{
  m_optionDialog = new optionDialog("Program Settings", *this);
}

MainWindow::~MainWindow()
{
  delete m_optionDialog;
}

void MainWindow::on_option_dialog()
{
  m_optionDialog->run();  // THIS IS WHERE I GET THE COMPILER ERROR!!
}

------------------------

I am using the latest Win32 gtkmm-2.2 and gtk-2.2.  I am a newbie when it comes 
to Gtk and Gtkmm; however, all the examples I tried in the Gtkmm book compiled 
fine. Strangely, if I instantiate a class of Gtk::MessageDialog, I am able to 
call the run() method on those objects.  Is there something funny about the 
Gtk::Dialog that I'm not seeing????

Thanks in Advance!


-- 
Gene Ruebsamen


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