procedure TCustomScrollBox.MouseDown(Button: TMouseButton; Shift: TShiftState;
  X, Y: Single);
begin
  FMouseEvents := True;
  inherited;
  if (Button = TMouseButton.mbLeft) then
  begin
    MousePosToAni(X, Y);
    AniMouseDown(ssTouch in Shift, X, Y);
  end;
end;

procedure TForm1.OnListBox1Item1DblClick(Sender:TObject);
begin
  ....//处理一些事情 
  AsyncCallInUIThread(
    procedure
    begin
      Self.DisposeOf; //延迟释放，防止内存访问异常
    end);
end;

procedure AsyncCallInUIThread(Proc: TProc);
begin
  TThread.CreateAnonymousThread(
    procedure
    begin
      Sleep(0);
      TThread.Synchronize(nil, 
        procedure 
        begin 
          Proc; 
        end); 
    end).Start; 
end;