Force output to a specific paper format

Hi All,

Is it possible to force a printer to a specific paper format like: A4 fanfold 210 mm x 11 2/3 in?

This paperformat is available in the printer driver. Current problem now is that after one print job, this paper format is reset to Letter.


  • gpigpi Volnovakha, Ukraine

    Set TfrxReportPage.PaperSize to A4

  • Hi,

    I already tried this, unfortunately without any effect. A4 paper is defined in Delphi, but A4 fanfold isn't.

    I also used TFormInfo1 to get all available paper sizes and set the TfrxReportPage.PaperSize to the right integer, but also no effect.

  • gpigpi Volnovakha, Ukraine

    Did you change paper size before preparing of report?

  • Unfortunately this doesn't help:

    frxReportPage.PaperSize  := DMPAPER_USER;

    frxReportPage.PaperHeight := 25.4; // in 0.1 mm

    frxReportPage.PaperWidth := 220; // in 0.1 mm



    Back to the orriginal code:



    The problem still is:

    Set in printer driver: papersize to A4 fanfold 210 mm x 11 2/3 in

    So the settings below are correct when I open the properties page when I want to print.

    But when I just did a print job and want to print again, the properties are

    The Letter size is not correct for this printer, so it fails.

    The paper size was never changed by me in code.

  • gpigpi Volnovakha, Ukraine

    Can you set format what you need in the FR Designer? What result did you get when print this report?

  • I am not able to set the correct paper size in FR Designer. The needed format is not available.

    I tried below code to get all paper sizes and set frxReportPage.PaperSize to the right index, but without any success.

    // GetPaperInfo

    // ---------------------------------------------------------------------------------------------------------------------

    procedure TFMain_Settings.GetPaperInfo(PrinterName: PWideChar);

    var HPrinter: THandle;

       Forms: Array of TFormInfo1;

       Count, Needed, Returned: DWORD;

       Counter: Integer;

       ListItem: TListItem;



     If OpenPrinter(PrinterName, HPrinter, Nil)

      Then Begin


             If Not EnumForms(HPrinter, 1, Nil, 0, Needed, Returned)

              Then Begin

                    If GetLastError <> ERROR_INSUFFICIENT_BUFFER

                     Then RaiseLastOSError;

                    Count := (Needed div SizeOf(TFormInfo1)) +1;

                    SetLength(Forms, Count);

                    If EnumForms(HPrinter, 1, @Forms[0], SizeOf(TFormInfo1) * Count, Needed, Returned)

                     Then Begin

                           If Returned < Count

                            Then SetLength(Forms, Returned +1);

                           For Counter := 0 to Returned -1 do


                             ListItem := ListView_Printers_Papers.Items.Add;

                             ListItem.Caption := IntToStr(Counter);

                             ListItem.ImageIndex := -1;

                             ListItem.Checked := False;


                             ListItem.SubItems.Add(Format('%dmm x %dmm', [Forms[Counter]. div 1000, Forms[Counter] div 1000]));



                     Else RaiseLastOSError;

                    SetLength(Forms, 0);









  • gpigpi Volnovakha, Ukraine

    Did you set your printer in the report settings before set paper size?

  • It is already going wrong within the Preview screen.

    Procedure is:

    • Preview is on screen
    • Press the printer button
    • In Printer dialog press the Settings button
    • Properties of the printer are:
    • Click Ok button and print the page.
    • Again press the printer button in the Preview screen, the Preview was never closed.
    • In Printer dialog press the Settings button
    • Properties of the printer are

    What/Who changed the Paper Size?

    Now I have to manualy correct the paper size. This is not what I want to do.

  • Below the solution:

    frxReport.PrintOptions.PrintMode := pmScale;

    frxReport.PrintOptions.PrintOnSheet := 186 // right index of TFormInfo1 (in my case A4 fanfold 210 mm x 11 2/3 in)

    If frxReport.PrepareReport

     Then frxReport.ShowPreparedReport;

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