Article Writing

void GetLongFileName(LPSTR src,LPSTR dest)
{
  LPSHELLFOLDER psfDesktop = 0;
  ULONG chEaten = 0;
  LPITEMIDLIST pidlShellItem = 0;
  char szLongPath[MAX_PATH] = { 0 };
  WCHAR szShortPath[MAX_PATH];

  MultiByteToWideChar(CP_ACP,0,filename,-1,szShortPath,sizeof(szShortPath));

  // get the desktop folder shell interface
  HRESULT hr = ::SHGetDesktopFolder(&psfDesktop);
  if (hr != NOERROR) 
    return;

  // get pidl for the short path
  hr = psfDesktop->ParseDisplayName(0, 0, szShortPath, &chEaten,        &pidlShellItem, 0);

  // release the desktop IShellFolder interface
  psfDesktop->Release();

  // if we failed to parse the filename, return original value
  if (hr != NOERROR) 
    return;

  // so far, so good; get the long filename
  bool retval=SHGetPathFromIDList(pidlShellItem,szLongPath);

  // free the pidl allocated by ParseDisplayName
  LPMALLOC pMalloc = 0;
  if (SHGetMalloc(&pMalloc) == NOERROR) 
  {
    pMalloc->Free(pidlShellItem);
    pMalloc->Release();
  }

  // if failed, return original string
  if (!retval) 
    return filename;

  // everything worked, so fill in new path
  strcpy(dest,szLongPath);
}