// Read REG_DWORD
procedure TForm1.Button1Click(Sender: TObject);
var
Reg: TRegistry;
RegKey: DWORD;
Key: string;
begin
Reg := TRegistry.Create;
try
Reg.RootKey := HKEY_USERS;
Key := '.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\URL History';
if Reg.OpenKeyReadOnly(Key) then
begin
if Reg.ValueExists('DaysToKeep') then
begin
RegKey := Reg.ReadInteger('DaysToKeep');
Reg.CloseKey;
ShowMessage(IntToStr(RegKey));
end;
end;
finally
Reg.Free
end;
end;
// Write REG_DWORD
procedure TForm1.Button2Click(Sender: TObject);
var
Reg: TRegistry;
Key: string;
begin
Reg := TRegistry.Create;
try
Reg.RootKey := HKEY_USERS;
Key := '.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings\URL History';
if Reg.OpenKey(Key, True) then
begin
Reg.WriteInteger('DaysToKeep', 20);
Reg.CloseKey;
end;
finally
Reg.Free
end;
end;
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