146DB842B-140000000 +00007FF7ED5B1000-1000
上面是几个数为Delphi的几个编辑框
求计算方法？
踩到坑了，求点拨

无论直接转，还是间接转，只要结果是：7FF7F436842B 就对了。
试了网上给出的答案各种坑儿。
要么位数有问题，要么结果有问题，要么不是想要的。

unit Unit2;

interface

uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants,
System.Classes, Vcl.Graphics, Vcl.Controls, Vcl.Forms, Vcl.Dialogs,
Vcl.StdCtrls;

type
TForm2 = class(TForm)
Button1: TButton;
Edit1: TEdit;
Label1: TLabel;
Label2: TLabel;
Edit2: TEdit;
Button2: TButton;
Button3: TButton;
Edit3: TEdit;
Edit4: TEdit;
procedure Button1Click(Sender: TObject);
procedure Button3Click(Sender: TObject);
private

{ Private declarations }

public
{ Public declarations }
end;

var
Form2: TForm2;

implementation

{$R *.dfm}
function HexToOct(hValue: string): Integer;
begin
Result := StrToInt('$' + hValue);
end;

procedure TForm2.Button1Click(Sender: TObject);
begin
Edit1.Text := IntToStr(HexToOct(Edit1.Text));
end;

procedure TForm2.Button3Click(Sender: TObject);
begin
// Edit1.Text := IntToStr(HexToOct(Edit1.Text)+ HexToOct(Edit3.Text)-HexToOct(Edit4.Text));

end;

end.

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