PrinterIndex not working with TPrintDialog

If I change the printer using the PrinterIndex property of Printer,
and then call PrintDialog.Execute (assuming PrintDialog is of type
TPrintDialog) it will show the settings for the default printer.

If I change the printer selected via the print dialog and then click
OK, and change the printer again via PrinterIndex, and finally show
the print dialog again, it shows the previously selected printed as
when the dialog was last open.

what gives? how can I make this work without having to resort to using
the Window API?

thanks in advance,
David
dl090597Asked:
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ZifNabCommented:
Hi dl,

maybe this answers your question :

Changing the port of a printer

                          Question:

                          How can I change the port a given printer will use in code?

                          Answer:

                          You can use the SetPrinter method of TPrinter to change the port.
                          The following example demonstrates changing the port to print to a
                          file.

                          Example:

                          uses Printers;

                          {$IFNDEF WIN32}
                           const MAX_PATH = 144;
                          {$ENDIF}

                          procedure TForm1.Button1Click(Sender: TObject);
                          var
                            pDevice : pChar;
                            pDriver : pChar;
                            pPort   : pChar;
                            hDMode : THandle;
                            PDMode : PDEVMODE;
                          begin
                            if PrintDialog1.Execute then begin
                              GetMem(pDevice, cchDeviceName);
                              GetMem(pDriver, MAX_PATH);
                              GetMem(pPort, MAX_PATH);
                              Printer.GetPrinter(pDevice, pDriver, pPort, hDMode);
                              Printer.SetPrinter(pDevice, PDriver, 'FILE:', hDMode);
                              FreeMem(pDevice, cchDeviceName);
                              FreeMem(pDriver, MAX_PATH);
                              FreeMem(pPort, MAX_PATH);
                              Printer.BeginDoc;
                              Printer.Canvas.TextOut(100, 100, 'Delphi Is RAD!');
                              Printer.EndDoc;
                            end;
                          end;
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