PFNGLMULTIDRAWARRAYSEXTPROC typedef
        PFNGLMULTIDRAWARRAYSEXTPROC =
     Void Function(Uint32 mode, Pointer<Int32>  first, Pointer<Uint32>  count, Uint32 primcount)
    
    
    
Implementation
typedef PFNGLMULTIDRAWARRAYSEXTPROC =
    Void Function(
      Uint32 mode,
      Pointer<Int32> first,
      Pointer<Uint32> count,
      Uint32 primcount,
    );