I want to create an application that uses OpenCL to caluculate the color value of every pixel in a texture and OpenGL to display that texture. The problem is that when I try to create a context with GL sharing properties the program freezes. Using the function `get_gl_sharing_context_properties()` I get a list `[(8200, 65538), (8203, 18446744072971422270)]`. The last number in the list is too big to convert to a 64 bit int and I get an overflow error. 
The code I use to create the CL context:

```
def cl_init():
    platform = cl.get_platforms()[1]
    device = platform.get_devices(cl.device_type.GPU)

    from pyopencl.tools import get_gl_sharing_context_properties

    print(cl.have_gl())
    print(get_gl_sharing_context_properties())
    print(sys.platform)
    context = cl.Context(properties=[
                (cl.context_properties.PLATFORM, platform)] +
                get_gl_sharing_context_properties())

    print("Context creation done")

    queue = cl.CommandQueue(context)

```

The code never reaches `print("Context creation done")`. I use QtPy4 and the QGLWidget to create the OpenGL context and display the texture.