Re: Passing extra parameters to wrapper function

Kristoffer Danielsson wrote:
> Consider this:
> 
> .def("log", WriteLog) // Not sufficient! Need one more parameter...
> 
> Inside lua:
> 
> log('Hello!')
> 
> Wrapper in C++:
> 
> void WriteLog(HWND hWndEdit, const char *text)
> {
>     SetWindowText(hWndEdit, text); // hWndEdit provided when binding using ".def"?
> }
> 
>  
> Is this possible? Perhaps using raw()?

You can use tag_function() to explicitly specify the signature of any
function object, so you can for example do this:

  def(
      "log"
    , tag_function<void(char const*)>(
          boost::bind(WriteLog, edit_hwdn, _1)
      )
  );


-- 
Daniel Wallin
BoostPro Computing
http://www.boostpro.com

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