Как найти все форматы бумаги, поддерживаемые принтером?

uses 
  Printers, WinSpool; 
 
procedure GetPapernames(sl: TStrings); 
type 
  TPaperName      = array [0..63] of Char; 
  TPaperNameArray = array [1..High(Word) div SizeOf(TPaperName)] of TPaperName; 
  PPapernameArray = ^TPaperNameArray; 
var 
  Device, Driver, Port: array [0..255] of Char; 
  hDevMode: THandle; 
  i, numPaperformats: Integer; 
  pPaperFormats: PPapernameArray; 
begin 
  Printer.PrinterIndex := -1; // Standard printer 
  Printer.GetPrinter(Device, Driver, Port, hDevmode); 
  numPaperformats := WinSpool.DeviceCapabilities(Device, Port, DC_PAPERNAMES, nil, nil); 
  if numPaperformats  0 then  
  begin 
    GetMem(pPaperformats, numPaperformats * SizeOf(TPapername)); 
    try 
      WinSpool.DeviceCapabilities(Device, Port, DC_PAPERNAMES, 
        PChar(pPaperFormats), nil); 
      sl.Clear; 
      for i := 1 to numPaperformats do sl.Add(pPaperformats^[i]); 
    finally 
      FreeMem(pPaperformats); 
    end; 
  end; 
end; 
 
procedure TForm1.Button1Click(Sender: TObject); 
begin 
  GetPapernames(memo1.Lines); 
end; 

Взято с сайта https://www.swissdelphicenter.ch/en/tipsindex.php

Вот пример, выводящий список форматов бумаги для принтера, установленного по умолчанию:

procedure TForm1.Button2Click(Sender: TObject);
type
 
  TPaperName = array[0..63] of Char;
  TPaperNameArray = array[1..High(Cardinal) div Sizeof(TPaperName)] of
    TPaperName;
  PPapernameArray = ^TPaperNameArray;
var
 
  Device, Driver, Port: array[0..255] of Char;
  hDevMode: THandle;
  i, numPaperformats: Integer;
  pPaperFormats: PPapernameArray;
begin
 
  Printer.PrinterIndex := -1;
  Printer.GetPrinter(Device, Driver, Port, hDevmode);
  numPaperformats :=
    WinSpool.DeviceCapabilities(Device, Port, DC_PAPERNAMES, nil, nil);
  if numPaperformats > 0 then
    begin
      GetMem(pPaperformats, numPaperformats * Sizeof(TPapername));
      try
        WinSpool.DeviceCapabilities(Device, Port, DC_PAPERNAMES,
          Pchar(pPaperFormats), nil);
        memo1.clear;
        for i := 1 to numPaperformats do
          memo1.lines.add(pPaperformats^[i]);
      finally
        FreeMem(pPaperformats);
      end;
    end;
end;

Взято из Советов по Delphi от Валентина Озерова

Сборник Kuliba