PFNGLCONVOLUTIONFILTER1DEXTPROC typedef
        PFNGLCONVOLUTIONFILTER1DEXTPROC =
     Void Function(Uint32 target, Uint32 internalformat, Uint32 width, Uint32 format, Uint32 type, Pointer<NativeType>  image)
    
    
    
Implementation
typedef PFNGLCONVOLUTIONFILTER1DEXTPROC =
    Void Function(
      Uint32 target,
      Uint32 internalformat,
      Uint32 width,
      Uint32 format,
      Uint32 type,
      Pointer<NativeType> image,
    );