PFNGLGETMULTITEXENVIVEXTPROC typedef
        PFNGLGETMULTITEXENVIVEXTPROC =
     Void Function(Uint32 texunit, Uint32 target, Uint32 pname, Pointer<Int32>  params)
    
    
    
Implementation
typedef PFNGLGETMULTITEXENVIVEXTPROC =
    Void Function(
      Uint32 texunit,
      Uint32 target,
      Uint32 pname,
      Pointer<Int32> params,
    );