delphi 怎么获取工程版本号

function GetApplicationVersion:String;  // Added  取得程序版本号

var

   FileName:String;

   InfoSize,Wnd:DWORD;

   VerBuf:Pointer;

   VerInfo:^VS_FIXEDFILEINFO;

begin

   Result:='0.0.0.0';

   FileName:=Application.ExeName;

   InfoSize:=GetFileVersionInfoSize(PChar(FileName),Wnd);

   if InfoSize<> then

   begin

   GetMem(VerBuf,InfoSize);

   try

      if GetFileVersionInfo(PChar(FileName),Wnd,InfoSize,VerBuf) then

      begin

          VerInfo:=nil;

          VerQueryValue(VerBuf,'\',Pointer(VerInfo),Wnd);

         if VerInfo<>nil then Result:=Format('%d.%d.%d.%d',[VerInfo^.dwFileVersionMS shr , VerInfo^.dwFileVersionMS and $0000ffff,VerInfo^.dwFileVersionLS shr ,  VerInfo^.dwFileVersionLS and $0000ffff]);

     end;

   finally

       FreeMem(VerBuf,InfoSize);

   end;

  end;

end;