About SaveAs method

Question

Hi, all.
I want to convert a pdf file to eps through Illustrator in an MFC application.
Can I do this with only by open the pdf file, and save as eps file, this is just same like when I do it by operation.
The code is written below. But I'm facing a problem, even though the file name in SaveAs method set to ".eps", an .ai file was created not eps.
Anybody knows why ? did I something wrong or insufficient setting in this code ?
Illustrator::_EPSSaveOptionsPtr pEPS;
pEPS.CreateInstance(L"Illustrator.EPSSaveOptions");
pEPS->PutCompatibility(Illustrator::aiIllustrator12);
pEPS->PutCMYKPostScript(true);
Illustrator::_ApplicationPtr pXL = pEPS->GetApplication();
pXL->Open("C:\\Sample.pdf");
DocumentPtr pDoc = pXL->GetActiveDocument();
pEPS.CreCreateInstance(L"Illustrator.EPSSaveOptions");
pDoc->SaveAs("C:\\Sample.eps");

Answer 1

what if you use the documentSuite -> write(<File>,<eps-handler>,false)?<br /><br />the handler could be obtained by:<br /><br />int i=0;<br />for(; i< number of handlers; i++)<br />{<br />   if(handlers.get(i) is the handler that creates eps files)<br />      break;<br />}<br />if(i<number of handlers)<br />{<br />   write file<br />}