PFNGLMULTITEXSUBIMAGE3DEXTPROC typedef
        PFNGLMULTITEXSUBIMAGE3DEXTPROC =
     Void Function(Uint32 texunit, Uint32 target, Int32 level, Int32 xoffset, Int32 yoffset, Int32 zoffset, Uint32 width, Uint32 height, Uint32 depth, Uint32 format, Uint32 type, Pointer<NativeType>  pixels)
    
    
    
Implementation
typedef PFNGLMULTITEXSUBIMAGE3DEXTPROC =
    Void Function(
      Uint32 texunit,
      Uint32 target,
      Int32 level,
      Int32 xoffset,
      Int32 yoffset,
      Int32 zoffset,
      Uint32 width,
      Uint32 height,
      Uint32 depth,
      Uint32 format,
      Uint32 type,
      Pointer<NativeType> pixels,
    );