Tao memory access violation

[Afr0]

Trying to draw with Tao gives me a memory access violation exception!

Code: [Select]

                   unsafe
                    {
                        fixed (Vector3* Ptr = &Sim.BodyMesh.TransformedVertices[0])
                            Gl.glVertexPointer(3, Gl.GL_FLOAT, (int)((int)Marshal.OffsetOf(typeof(Vector3), "m_Y") -
                                (int)Marshal.OffsetOf(typeof(Vector3), "m_X") - sizeof(float)), (IntPtr)Ptr);
                        fixed (Vector2* Ptr = &Sim.BodyMesh.TransformedTexVertices[0])
                            Gl.glTexCoordPointer(2, Gl.GL_FLOAT, (int)((int)Marshal.OffsetOf(typeof(Vector3), "m_X") -
                                (int)Marshal.OffsetOf(typeof(Vector3), "m_Y") - sizeof(float)), (IntPtr)Ptr);
                        Gl.glDrawElements(Gl.GL_TRIANGLES, Sim.BodyMesh.FaceCount * 3, Gl.GL_UNSIGNED_INT,
                            Sim.BodyMesh.FaceIndexes);
                    }

The exception occurs when I'm calling glDrawElements()... does anyone know why?
I was thinking of using OpenTK, but I found a post where Laurent wrote that it was difficult (impossible?) to use it with SFML.

Please help!

[Afr0]

Specifically, the error I'm getting is AccessViolationException;

Code: [Select]

Attempted to read or write protected memory. This is often an indication that other memory is corrupt.

[Laurent]

You must disable the color component for vertex arrays, SFML internally leaves it enabled (that is, if you're using SFML 2).

[Afr0]

I'm not sure my vertex-arrays even have color components... how do I disable 'em?

[Laurent]

I'm not sure my vertex-arrays even have color components... how do I disable 'em?

They don't, that's why you must disable it.

Code: [Select]

glDisableClientState(GL_COLOR_ARRAY);

[Afr0]

Thanks!