void DestroyContext()
{
if (EGLContext != null)
{
ClearCurrent();
egl.EglDestroyContext(window.Display, EGLContext);
EGLContext = null;
}
}
public void destroyContext(IEGL10 egl, EGLDisplay display, EGLContext context)
{
egl.EglDestroyContext(display, context);
}