Thema: Delphi Amazon

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Cylence

Registriert seit: 2. Sep 2004
Ort: Allgäu
246 Beiträge
 
Delphi 7 Enterprise
 
#16

Re: Amazon

  Alt 12. Jan 2009, 13:57
Hi,

also falls es jemand interessiert *g* so geht das:

erstmal anmelden bei amazonservices wie weiter oben schon beschrieben und dann so suchen und runterladen:

Delphi-Quellcode:
   

const URLString = 'http://webservices.amazon.de/onca/xml?Service=AWSECommerceService&AWSAccessKeyId='+ YOURAMAZONID +
               + '&AssociateTag=&Operation=ItemSearch&SearchIndex=Music&Keywords=';
              
function TForm1.GetCoverFromAmazon(KeyWords: string): Boolean;
var
  PICString : String;
  TestFile: PChar;
  lStream: TFileStream;
  ConnectionOK : Boolean;
  fa: TFileAttributes;
  Picfoundandloaded : Boolean;
  i : Integer;
begin
 try
    if not assigned(XidHTTP) then XidHTTP := TIdhttp.Create(Nil);
  Result := False;
  if Keywords = 'then begin
     Result := False;
     Exit;
  end;
  //Suchen
  if Fileexists(PrgPfad + 'temp\actualTitle.txt') then deletefile(PrgPfad + 'temp\actualTitle.txt');
     ConnectionOK := True;
     lStream:=TFileStream.Create(PrgPfad + 'temp\actualTitle.txt', fmCreate or fmShareDenyNone);
     try
       //Suchergebnis Seite von amazon runterladen
       XidHTTP.Get(URLString + Keywords + '&ResponseGroup=Medium', lStream);
     except
       ConnectionOK := False;
     end;
    lStream.Free;
  //Suchergebnis durchchecken
  if ConnectionOK then begin
   if Fileexists(PrgPfad + 'temp\actualTitle.txt') then begin
     FXMLFile := TStringList.Create;
      FXMLFile.LoadFromFile(PrgPfad + 'temp\actualTitle.txt');
      PICString := SearchinXML;
      PICString := trim(PICString);
     FXMLFile.Free;
   end;
  end;
  if PICString = 'then begin
     Result := False;
     Exit;
  end;
  //File runterladen
  if Fileexists(AmazonCoverPath) then deletefile(AmazonCoverPath);
     lStream:=TFileStream.Create(AmazonCoverPath, fmCreate or fmShareDenyNone);
     try
       XidHTTP.Get(PICString, lStream);
       Picfoundandloaded := True;
     except
       Picfoundandloaded := False;
     end;
    lStream.Free;
  //File anzeigen
  if Picfoundandloaded then begin
     if CopyAmazonPicToFolder then begin
        DateiInfoform.CopytoTitle(Self);
        if MRPlaylist.ActivePlaylist.Cell[11,ACTINDEX].AsInteger = -1 then begin
           CoverSearchPath := ExtractFilePath(ActFile);
           TRenewCover.create(False);
        end;
     end;
     fa := GetFileAttributes(AmazonCoverPath);
     if readonly in fa then begin
        TestFile := PChar(AmazonCoverPath);
        if SetFileAttributes(Testfile, FILE_ATTRIBUTE_NORMAL) then Resizepicture((AmazonCoverPath), DeskDisplay.AlbumCover.Width, DeskDisplay.AlbumCover.Height);
     end else Resizepicture((AmazonCoverPath), DeskDisplay.AlbumCover.Width, DeskDisplay.AlbumCover.Height);
     OldCover := (AmazonCoverPath);
     Deskdisplay.LoadnextCover(OldCover,False);
     Result := True;
  end else Result := False;
 except
   Result := False;
 end;
end;


function TForm1.SearchInXML:String;
var
 i, x,
 Imagepos,
 MedPos : Integer;
 St,ZZZ : WideString;
 NewFile : TStringList;
begin
  for i := 0 to FXMLFile.Count -1 do
  begin
    St := FXMLFile.Strings[i];
    if Pos('<MEDIUMIMAGE>',Uppercase(St))<>0 then begin
       MedPos := Pos('<MEDIUMIMAGE>',Uppercase(St));
       for x := MedPos to MedPos + 30 do begin
           ZZZ := copy(St,x,x+2);
           Imagepos := Pos('.JPG',Uppercase(ZZZ));
           Result := Copy(ZZZ,19,Imagepos-15);
           Exit;
       end;
    end;
  end;
end;
Tom
Just DO it
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