Re: [gtkmm] Spawning a new windows from toplevel window

[Jaroslaw Mroczek <jaroslaw mroczek wp pl>]

Max Vasin wrote:
> Jaroslaw Mroczek <jaroslaw mroczek wp pl> writes:
>
>
> > Hello everybody
> >
> > 	I write program for analizing ECG signals (viewer, R peak
> > detector, PVC detector, ...). I wrote everything in C++ and designed
> > GUI in GTKmm. Main window of my aplication is represented by EcgMain
> > class (public Gtk::Window(TOPLEVEL)). It's responsible for making
> > general operations on signal records (opening, saving,...). So I have
> > method
> > EcgMain::on_open_file() which is responsible for opening new signal
> > record and spawning new window with record (class SignalWindow : public
> > Gtk::Window as well).
> > 	To spawn a new toplevel signal window in on_open_file() i used
> > Gtk::Main:run(m_signal_window_object). Simple code doing this looks in
> > my program as follows:
> >
> > ... // finding signal record and loading to memory
> >
> > SignalWindow m_signal_window(pointer_to_signal_record) ; // new window
> > Gtk::Main:run(m_signal_window); // launch new window
>
> Wrong!!! Gtk::Main:run starts the event loop - I don't think it
> is a good idea to launch it twice or more. 
>
>
> > 	The problem is of course when I open a few signal windows and
> > want to close one of them. In SignalWindow class I have overriden
> > on_delete_event() method. When I want to close single signal window
> > there is Gtk::Main::quit() call inside on_delete_event(). Window is
> > closed of course but not this one which I wanted to close, but this
> > which was last launched by Gtk::Main:run. My question is quite simple.
> > How can I spawn new window from main one without calling Gtk::Main::run
> > or how can I close single window (this one which I want to close, not
> > the last opened) ??
>
> Well it is quite simple - you just have to create a new window object and
> then show the window. You should use somethining like
Thank you very much for helping me.
Yes, obviously it is simple ... if you don't forget to allocate memory 
for Window what I did in my app ;).
> SignalWindow* m_signal_window = new SignalWindow(pointer_to_signal_record);
> m_signal_window->show();

With the code:

SignalWindow m_signal_window ;
m_signal_window.show();

it simply doesn't work.

Thank you very much

	static_cast<Happy>(RedBull)