Voici mon code qui permet de gerer avec un CGI que j'appel soit avec URLDownloadToFile soit avec de l'ajax, réalisé avec delphi, je vous le donne tel quel en esperant qu'il aide un jours quelqu'un.

(attention le script c'est de l'EPL, pas du ZPL)

La partie intéréssante est dans la fonction "Print"

Code : Sélectionner tout - Visualiser dans une fenêtre à part
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program eplprint;
 
{$APPTYPE CONSOLE}
 
uses
  SysUtils,
  Windows,
  WinSpool,
  StrUtils,
  CSVList,
  Printers,
  edBase64;
 
{$E .cgi}
 
const
  EPLBEGIN =
    'N'#13#10+
    'Q408,24'#13#10+
    'q808'#13#10+
    'S4'#13#10+
    'D10'#13#10+
    'ZT'#13#10+
    'JF'#13#10+
    'I8,A,001'#13#10;
  EPLEND =
    'P1'#13#10+
    'N'#13#10;
 
type
  TStringCase = (
    scNone,
    scFull,
    scLower,
    scUpper
  );
 
function getvar(varname:string):string; var buffer:array[0..1024] of char; size:integer; begin size:=GetEnvironmentVariable(PChar(varname),buffer,sizeof(buffer)); if size=0 then getvar:='' else getvar:=String(buffer); end;
function getParams: string; var S: string; I,Size: integer; begin if getvar('REQUEST_METHOD')='POST' then begin S:=getvar('CONTENT_LENGTH'); if S<>'' then begin size:=strtoint(S); setlength(S, size); for I:=1 to size do read(S[i]); end; end else S:=getvar('QUERY_STRING'); result:=S; end;
 
function strCase(aStr: string; const aCase: TStringCase = scNone): string;
begin
  case aCase of
    scNone   : result := aStr;
    scFull   :
      if length(aStr) >= 2 then
        result := UpperCase(aStr[1]) + LowerCase(copy(aStr, 2, Length(aStr)-1))
      else
      if length(aStr) = 1 then
        result := UpperCase(aStr)
      else
        result := aStr;
    scLower  : result := lowerCase(aStr);
    scUpper  : result := upperCase(aStr);
  end;
 
end;
 
function CleanStr(aStr: string): string;
var TS: string;
    X : integer;
begin
  TS := Trim(aStr);
 
  // remplacement caractères spéciaux
  for X := 1 to Length(TS) do
  begin
    case TS[X] of
      'â','ä','ã','à','á','Ã','À','Á','Â','Ä','Å' : TS[X] := 'A';
      'ê','ë','é','è','È','É','Ë','Ê'             : TS[X] := 'E';
      'î','ï','ì','í','Ì','Í','Ï','Î'             : TS[X] := 'I';
      'ô','ö','õ','ò','ó','Ö','Ô','Õ','Ò','Ó'     : TS[X] := 'O';
      'û','ü','ù','ú','Ü','Û','Ù','Ú'             : TS[X] := 'U';
      'ÿ','ý','Ý','Ÿ'                             : TS[X] := 'Y';
      'ç','Ç'                                     : TS[X] := 'C';
      '²'                                         : TS[X] := '2';
      '~','^','¨'                                 : TS[X] := ' ';
      '`','"'                                     : TS[X] := '''';
      #13,#09,#10                                 : TS[X] := ' ';
    end;
  end;
 
  // remplacement  caractères non supportés
  TS := ReplaceStr(TS, 'œ', 'OE');
  TS := ReplaceStr(TS, 'Œ', 'OE');
  TS := ReplaceStr(TS, 'Æ', 'AE');
  TS := ReplaceStr(TS, '°', '');
  TS := ReplaceStr(TS, 'ø', '');
  TS := ReplaceStr(TS, 'Ø', '');
  TS := ReplaceStr(TS, 'ӥ','''E');
  TS := ReplaceStr(TS, '
', '');
  TS := ReplaceStr(TS, '  ', ' ');
  TS := ReplaceStr(TS, '&', 'ET');
  TS := ReplaceStr(TS, '�', 'E');
 
  result := TS;
end;
 
type
  TRawData = packed record
    nLen: integer;
    Data: array[0..1023] of byte;
  end;
 
procedure Print(C: AnsiString);
var X  : integer;
    Cs : AnsiString;
    RD : TRawData;
begin
  Cs := EPLBEGIN + C + EPLEND;
  RD.nLen := Length(Cs);
  StrPCopy(@RD.Data, Cs);
 
  Printer.PrinterIndex := Printer.Printers.IndexOf('GTEXT PF8D');
  if Printer.PrinterIndex = -1 then
  begin
    for X := 0 to Printer.Printers.Count - 1 do
      if pos('GTEXT',Printer.Printers[X]) <> 0 then
      begin
        Printer.PrinterIndex := X;
        break;
      end;
  end;
 
  if Printer.PrinterIndex <> -1 then
  begin
    Printer.BeginDoc;
    try
      Escape(Printer.Handle, PASSTHROUGH, 0, @RD, nil);
      writeln('Impression Ok');
    finally
      Printer.EndDoc;
    end;
  end
  else
    Writeln('Erreur imprimante');
end;
 
 
// PRINT RACK
procedure PrintRack(aRack: string);
var
  C: ansistring;
const
  EPLTPL =
   'A205,29,0,5,2,2,N,"%%RACKNUM%%"'#13#10+
   'B205,130,0,1,3,0,80,N,"%%RACKNUM%%"'#13#10;
begin
  C := EPLTPL;
  C := ReplaceStr(C, '%%RACKNUM%%', strCase(cleanStr(aRack),scUpper));
  Print(C);
end;
 
// PRINT BAC
procedure PrintBac(aBac: string);
var
  C: ansistring;
const
  EPLTPL =
    'A225,29,0,5,2,2,N,"%%BACNUM%%"'#13#10+
    'B242,130,0,1,3,0,100,N,"%%BACNUM%%"'#13#10;
begin
  C := EPLTPL;
  C := ReplaceStr(C, '%%BACNUM%%', strCase(cleanStr(aBac), scUpper));
  Print(C);
end;
 
// PRINT PHONE
procedure PrintPhone(aPhone0, aPhone1, aInfo0, aInfo1, aInfo2: string);
var
  C: ansistring;
const
  EPLTPL =
    'A24,30,0,y,1,1,N,"En cas d''absence merci de contacter :"'#13#10+
    'A30,80,0,4,1,1,N,"Tel 1 : %%PH0%%"'#13#10+
    'A30,130,0,4,1,1,N,"Tel 2 : %%PH1%%"'#13#10+
    'A24,180,0,y,1,1,N,"Informations complémentaires :"'#13#10+
    'A30,230,0,z,1,1,N,"%%NF0%%"'#13#10+
    'A30,270,0,z,1,1,N,"%%NF1%%"'#13#10+
    'A30,310,0,z,1,1,N,"%%NF2%%"'#13#10;
begin
  C := EPLTPL;
  C := ReplaceStr(C, '%%PH0%%', strCase(cleanStr(aPhone0),scUpper));
  C := ReplaceStr(C, '%%PH1%%', strCase(cleanStr(aPhone1),scUpper));
  C := ReplaceStr(C, '%%NF0%%', strCase(cleanStr(aInfo0),scFull));
  C := ReplaceStr(C, '%%NF1%%', strCase(cleanStr(aInfo1),scLower));
  C := ReplaceStr(C, '%%NF2%%', strCase(cleanStr(aInfo2),scLower));
  Print(C);
end;
 
// PRINT ADDRESS
procedure PrintAddress(aWithoutNum: boolean; aExpLine0, aExpLine1, aName, aAdr1, aAdr2, aAdr3, aZip, aCity, aCountry, aNum: string);
var
  C: ansistring;
const
  EPLTPL =
    'X16,16,4,793,124'#13#10+
    'LS16,16,4,793,124'#13#10+
    'LS16,124,4,793,16'#13#10+
    'A24,24,0,y,1,1,N,"Expediteur"'#13#10+
    'A41,54,0,w,1,1,N,"%%EXP1%%"'#13#10+
    'A41,85,0,w,1,1,N,"%%EXP2%%"'#13#10+
    'A15,130,0,y,1,1,N,"Destinataire"'#13#10+
    'A30,162,0,z,1,1,N,"%%NAME%%"'#13#10+
    'A30,192,0,z,1,1,N,"%%ADR1%%"'#13#10+
    'A30,222,0,z,1,1,N,"%%ADR2%%"'#13#10+
    'A30,252,0,z,1,1,N,"%%ADR3%%"'#13#10+
    'A30,282,0,z,1,1,N,"%%ZIP%%"'#13#10+
    'A200,282,0,z,1,1,N,"%%CITY%%"'#13#10+
    'A30,312,0,z,1,1,N,"%%COUNTRY%%"'#13#10;
  EPLTPLNUM =
    'TDy2mndd'#13#10+
    'A550,24,0,x,1,1,N,"%%NUM%%-"TD'#13#10+
    'B30,350,0,1,3,0,25,N,"%%NUM%%"'#13#10;
begin
  if aWithoutNum then
    C := EPLTPL
  else
  begin
    C := EPLTPL+EPLTPLNUM;
    C := ReplaceStr(C, '%%NUM%%', strCase(cleanStr(aNum), scUpper));
  end;
 
  C := ReplaceStr(C, '%%EXP1%%', strCase(cleanStr(aExpLine0),scUpper));
  C := ReplaceStr(C, '%%EXP2%%', strCase(cleanStr(aExpLine1),scUpper));
  C := ReplaceStr(C, '%%NAME%%', strCase(cleanStr(aName),scUpper));
  C := ReplaceStr(C, '%%ADR1%%', strCase(cleanStr(aAdr1),scUpper));
  C := ReplaceStr(C, '%%ADR2%%', strCase(cleanStr(aAdr2),scUpper));
  C := ReplaceStr(C, '%%ADR3%%', strCase(cleanStr(aAdr3),scUpper));
  C := ReplaceStr(C, '%%ZIP%%',  strCase(cleanStr(aZip),scUpper));
  C := ReplaceStr(C, '%%CITY%%', strCase(cleanStr(aCity),scUpper));
  C := ReplaceStr(C, '%%COUNTRY%%', strCase(cleanStr(aCountry),scUpper));
 
  Print(C);
end;
 
 
 
 
var CSV : TStringList;
begin
  try
    Writeln('content-type: text/html');
    Writeln;
    CSV := TStringList.CreateAsCSV(#0, ';');
    try
      CSV.CSV := EdBase64.Base64decodeStrA(GetParams);
      case strToInt(CSV[0]) of
        // adresse
        10 : if CSV.Count = 11 then
               PrintAddress(false, CSV[1], CSV[2], CSV[3], CSV[4], CSV[5], CSV[6], CSV[7], CSV[8], CSV[9], CSV[10])
             else
             if CSV.Count = 10 then
               PrintAddress(true, CSV[1], CSV[2], CSV[3], CSV[4], CSV[5], CSV[6], CSV[7], CSV[8], CSV[9], '')
             else
               Writeln('erreur de donnees adresse.');
        // telephone
        20 : begin
          if CSV.Count = 6 then
            PrintPhone(CSV[1], CSV[2], CSV[3], CSV[4], CSV[5])
          else
            Writeln('erreur de donnees telephone');
        end;
        // bac
        30 : begin
           if CSV.Count = 2 then
             PrintBac(CSV[1])
           else
             Writeln('erreur de donnees bac');
        end;
        // rack
        40 : begin
           if CSV.Count = 2 then
             PrintRack(CSV[1])
           else
             Writeln('erreur de donnees rack');
        end;
        else
          writeln('erreur de données');
      end;
    finally
      CSV.Free;
    end;;
  except
    on E:Exception do
      Writeln('Erreur d'' impression...');
  end;
end.