Reality check: running OpenTK Windows.Form / GLControl demo with mono under Ubuntu7.10

From the stack trace this looks like the main form raises the resize event before the GLControl has a chance to initialize itself (GL.Viewport is called before the context is created). This is a wild guess, but maybe you have hooked the main form's resize event instead of the GLControl's?

In short I've done what you suggested, plus a few other things to make my MainForm even more "clean".

Since I cannot attach files in this reply message, I'll attach files to the first message above.

Windows: still works, and did so in every step I took.
Linux: still breaks, with different error from before though. (attaching error4.txt which is the latest error report, with all cleaning up done)

I've written a short story about how I do things in MainForm.cs:

How I do things in my MainForm.cs file
My GLControl is called glControl.
I assume that glControl has been initialized by the time
the main form Load event is triggered.
Since I do GL/GLControl initilization/mechanical work in two separate files called
GLUtil.cs and GLControlUtil.cs, I will attach them.

MainForm constructor
I don't touch glControl at all here. Code:

    public MainForm()
    {
      InitializeComponent();
      game = new TempGame(); // GUI/GL independent member variable
      dogfight = new DogfightStateMachine(game); // GUI/GL independent member variable
    }

MainForm_Load
Here I initialize GL (background color, material parameters, lighting etc.).
I also add the Application_Idle event handler.

    private void MainForm_Load(object sender, EventArgs e)
    {
      GLControlUtil.Init(glControl, 1000);
      GLUtil.SunLightDirection(0, 1, 0);
      stopwatch.Start();
      Application.Idle += Application_Idle;
    }

I touch the glControl by calling HandleResize from within the
GlControlUtil.Init() method:

    public static void HandleResize(GLControl glCtrl, double viewdistance)
    {
      GL.Viewport(0, 0, glCtrl.ClientSize.Width, glCtrl.ClientSize.Height);
      GL.MatrixMode(MatrixMode.Projection);
      GL.LoadIdentity();
      Glu.Perspective(45, (double)glCtrl.Width / glCtrl.Height, 0.5, viewdistance);
      glCtrl.Invalidate();
      GL.MatrixMode(MatrixMode.Modelview);
    }

Application_Idle
The idle event handler touches glControl via an Invalidate() call:

    void Application_Idle(object sender, EventArgs e)
    {
      double deltaMS = ComputeDeltaMS(); // stopwatch mechanics
      dogfight.Tick(deltaMS);
      glControl.Invalidate();
      idleCount++;
    }

glControl_Resize
I simply call the same resize method as in MainForm_Load():

    private void glControl_Resize(object sender, EventArgs e)
    {
      GLControlUtil.HandleResize(glControl, 1000);
    }

I've attached Debug.4.zip to the original message. Had to remove OpenTK.dll (version 0.3.13) from the archive because of the 256kb attached file limit.

command line: "mono Dogfight2008.exe >error4.txt" (error4.txt attached also)

Thanks. I just tested on Vista / .Net 3.5, Ubuntu 7.04 / Mono 1.2.5 and Ubuntu 7.10 / Mono 1.2.6 and it works correctly on all three (x64 versions). There was a problem with the text on Ubuntu 7.04 / Mono 1.2.6 preview 2 (x32), but no crashes.

Unfortunately, I don't have any older Mono installations to try, but it seems likely that this is a Mono problem. It is unfortunate that Ubuntu ships with an outdated Mono version by default, and offers no way to upgrade easily (politics getting in the way of usability I'm afraid), but I'll try to think of a fix.

Do you by any chance run on 16bit color? This might cause problems, although it probably isn't the case.

Am I right in assuming that the glControl is properly initialized (context created and all) when MainForm_Load() is executed? Is there an even more "orthodox" way of building a Windows.Forms/GLControl program?