Running GTK# and OpenTK GameWindow at Once?

Posted Friday, 22 October, 2010 - 14:51 by jp-sdt in

Programming Support

Hi all,
I would like to create an "Preferences"-Window using GTK# and make a depend to my OpenTK gamewindow.
I don't plan to use GLWidged. It would be nicer to see Preferences window and OpenTk window running at once.
Any possibilitys there?

Thanks in advance
JP-sdt

// Sorry for my bad english ^^"

Comments

This should work, as long you open the GTK# window on a different thread than the GameWindow.

You will also need to add a call to OpenTK.Toolkit.Init() as the very first thing in your Main() method:

public static void Main()
{
    OpenTK.Toolkit.Init();
    ...
}

Thank you for your answer.
Are there any tutorials what describe what exactly you're meaning?
Thanks ^^

reguards
JP-sdt

Ok
I tried it out, but it didn't work correctly. I'm sure that I'm doing anywhat false. First I tried to test it with the Quickstart Project.
What I have to do in the GTK#-part?
Here's the main method of Starterkit.cs :

        [STAThread]
 
        static void Main()
 
        {
 
			Toolkit.Init();
 
			Gtk.Application.Init();
 
			MainWindow win = new MainWindow();
 
		        win.Show();
 
			Gtk.Application.Run();
 
            // The 'using' idiom guarantees proper resource cleanup.
 
            // We request 30 UpdateFrame events per second, and unlimited
 
            // RenderFrame events (as fast as the computer can handle).
 
            using (Game game = new Game())
 
            {
 
                game.Run(30.0);
 
            }
 
        }

_______________________________________________________________________________________________________
"A person who never made a mistake never tried anything new."
Albert Einstein

You need to create a new Thread and launch either GameWindow or MainWindow from there (your choice). Otherwise, the event loops of GTK# and OpenTK will interfere with each other.

Check out the Multithreading example (modify it to use 1 extra thread and move either the GameWindow or the MainWindow to that thread. Don't change the thread priority either).

Yeah,
Got it work :D
Thank you very much Fiddler ... I love that Comnuity :* ^^

Kind reguards
JP-sdt

_________________________________________________________________________________________________________
A person who never made a mistake never tried anything new.
Albert Einstein

Hi,
Got a new problem with Multithreading. How can I acces the Button Click events and so on? The void is static so i cant acces the user input data from the Gtk window, isn't it?

_________________________________________________________________________________________________________
A person who never made a mistake never tried anything new.
Albert Einstein

Events work as usual with the difference that GameWindow events fire in the GameWindow thread and GTK# events fire in the GTK# thread. As a rule of thumb, you shouldn't use instance methods of a class from a different thread. Static methods should be thread-safe.

What do you mean when you say "the void is static"?

My english is bad ^^
I think you missunderstood my question.
An quiet easy example to explain my want.
An Gtk-sharp window with a Combobox, where you can find the Items "Box","sphere"and "torus". Is it possible to send the given Combobox-item to the gamewindow, to draw the shape, the user want?

Quote:

What do you mean when you say "the void is static"?

Its an bad result of my very bad english x.x
just forget it ^^
_________________________________________________________________________________________________________
A person who never made a mistake never tried anything new.
Albert Einstein

Oh Sorry ^^
I forgot to use the variables as static ^^
My problem is solved now.
thanks for your help fiddler :D

_________________________________________________________________________________________________________
A person who never made a mistake never tried anything new.
Albert Einstein

Has anyone had any joy doing this on a Mac? I'm trying to have a GTK# (or winForms) app coincide with a GameWindow, and even though they're both on separate threads (and the same code works fine from both windows and Linux), the Mac is behaving as if they are both on the same thread.

I've followed the multithreading example for structuring the threads and this makes the situation worse. Having the gamewindow on the main app thread, and creating a side thread for the GUI causes the GTK# or WinForms app to show properly, but then crash after some time, and all the input goes to the OpenTK window (as if it was the same thread, but I can confirm it isn't, the GUI will run from a different thread ID than openTK will, (e.g. OTK in thread 1, GTK# in thread 5) and I'm just testing the logic now, so there's no event passing going on between the two yet, and definitely no join commands from one to the other).

If I follow the multithreaded example exactly, then both the OpenTK window and the GUI (either GTK# or WinForms) freeze up, and neither are responsive. Obviosuly running just OpenTK or just GTK or just winForms it all works fine.

Is threading properly implemented on the Mac in Mono? Does anybody have any success with this?

Any thoughts on this would be appreciated, it's been an all-day headscratcher.

Cheers,

Euan

Icarus Scene Engine. OpenTK-based 3D simulation & games solution:
http://www.pointscape.com.sg/joomla

See Icarus videos on YouTube at:

Home of the Open Toolkit library

Running GTK# and OpenTK GameWindow at Once?

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