怎么获取Internet临时文件中某文件的大小

如何获取Internet临时文件中某文件的大小？
第一步、获取Internet临时文件的路径，要求各个系统通用
第二步、获取这个路径中a.jpg的大小，比如200KB。
如果找不到这个文件，就提示找不到，谢谢
请给出代码谢谢！

[解决办法]

Delphi(Pascal) code

unit Unit1;interfaceuses  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,  Dialogs, StdCtrls;type  TForm1 = class(TForm)    Button1: TButton;    procedure Button1Click(Sender: TObject);  private    function GetIeTempFilePath():string;  public    { Public declarations }  end;var  Form1: TForm1;implementation   uses Registry;{$R *.dfm}function TForm1.GetIeTempFilePath():string;var reg:Tregistry; KeyList: TStringList; i: Integer;begin  reg:=Tregistry.create;  KeyList := TStringList.Create;  reg.RootKey := HKEY_CURRENT_USER;  reg.openkey('Software\Microsoft\Windows\CurrentVersion\Explorer\Shell Folders', False);  reg.GetValueNames(KeyList);  for i := 0 to KeyList.Count - 1 do  begin   if KeyList[i] = 'Templates' then   begin      Result := reg.ReadString(KeyList[i]);      Exit;   end;  end;  reg.CloseKey;  reg.free;  KeyList.Free;end;function GetFileSize1(const FileName: string):integer;var f: TFileStream; begin   f:=TFileStream.Create(FileName,fmOpenRead or fmShareDenyNone);   Result:=f.Size;   F.Free;end;procedure TForm1.Button1Click(Sender: TObject);var filePath:string;begin  filePath := GetIeTempFilePath;  if FileExists(filePath+'\a.jpg') then  begin    ShowMessage(IntToStr(GetFileSize1(filePath+'\a.jpg')));  end  else    ShowMessage('文件不存在！');end;end.
[解决办法]
uses
 WinInet;

FindFirstURLCacheEntry
FindNextUrlCacheEntry
DeleteUrlCacheEntry