Как найти все форматы бумаги, поддерживаемые принтером?

Материал из DRKB


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;


Source: Взято с сайта http://www.swissdelphicenter.ch/en/tipsindex.php
ID: 03197



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;


Source: Взято из Советов по Delphi от Валентина Озерова
ID: 03198