PFNGLGETPOINTERVPROCDart typedef
        PFNGLGETPOINTERVPROCDart =
     void Function(int pname, Pointer<Pointer<NativeType> >  params)
    
    
    
Implementation
typedef PFNGLGETPOINTERVPROCDart =
    void Function(int pname, Pointer<Pointer<NativeType>> params);