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1

DotNet / Re: OpenTK AccessViolationException on any OpenGL call

« on: October 15, 2016, 02:09:22 am »

Sorry for ressurrecting this, but I had the exactly same problem and managed to solve, so I thought it could be a good idea to let the solution here for someone who, just as me, needs it.


I was trying to reproduce this example but failing by getting AccessViolaton exception. Based on Ztormi's link I managed to make it work by the following:

using System;
using System.Runtime.InteropServices;
using SFML.Window;
using SFML.System;
using OpenTK;
using OpenTK.Graphics;
using OpenTK.Graphics.OpenGL;
using OpenTKUtilities = OpenTK.Platform.Utilities;


namespace SharpGL.Examples.Window
{
    static class Program
    {
        /// <summary>
        /// The main entry point for the application.
        /// </summary>
        static void Main()
        {
            var contextSettings = new ContextSettings {
                DepthBits = 24,
            };

            var window = new Window(new VideoMode(640, 480), "SFML window with OpenGL", Styles.Default, contextSettings);

            window.SetActive();

            Toolkit.Init();
           
            // Solution: creating a windowInfo and associating it with the GraphicsContext
            var windowInfo = new OpenTKUtilities.CreateWindowInfo(window.SystemHandle);
            var context = new GraphicsContext(new ContextHandle(IntPtr.Zero), windowInfo); // windowInfo instead of null
            context.MakeCurrent(windowInfo);
            context.LoadAll();

            // Everything else from now on is the same from the example (starting from Events setup)
        }
    }
}