StartDoc() returns negative, but no error.

I am new to windows printing, so I may be missing something
simple here.  I have a several printers set up, and am able
to print from other apps. A reasonable copy of what I'm
trying to do is below. Thank You.

void PrintOut(HWND hWnd)
{
      PRINTDLG pd;
      DOCINFO       di;
      char *title = "My Title";
      int NumCopies;
 
      memset(&pd,0,sizeof(PRINTDLG));
      pd.lStructSize      = sizeof(PRINTDLG);
      pd.hwndOwner      = hWnd;
      pd.Flags      = PD_RETURNDC | PD_NOPAGENUMS |
                       PD_NOSELECTION | PD_HIDEPRINTTOFILE;
      pd.nCopies            = 1;

      if (PrintDlg(&pd)) {
            di.cbSize = sizeof(DOCINFO);
            di.lpszDocName = title;
            di.lpszDatatype = NULL;
            di.fwType = 0;
/**
 *  StartDoc returns < 0, but an immediate call to
 *  GetLastError() ruturns error #0
 */
            if (StartDoc(pd.hDC,&di) > 0) {
                  for (NumCopies = 0;
                               NumCopies < pd.nCopies;
                                              NumCopies++) {
                        StartPage(pd.hDC);

/** My printing here **/
                        EndPage(pd.hDC);
                  } // for print each page
                  EndDoc(pd.hDC);
            }  // if was able to start the print job
            DeleteDC(pd.hDC);
      } // If print out for real
} // PrintOut
PhilCAsked:
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marvinmCommented:
I notice you didn't zero out the DOCINFO structure.

try memset(&di,0,sizeof(DOCINFO));

before setting any of its members.
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