🚀 go-pugleaf

Hello everybody,



I have a doubt:



I have a main form (Form1) and when I press a button I create a new no modal
form (Form2). In order to destroy Form2 I use "caFree".



void __fastcall TForm1::btn_botonClick(TObject *Sender)

{

  Form2 = new TForm2(Application);

  Form2->Show();

}

//--------------------------------------------------------------------------
-



void __fastcall TForm2::FormClose(TObject *Sender,

      TCloseAction &Action)

{

  Action = caFree;

}

//--------------------------------------------------------------------------
-



(Form2 is a global variable)



And I suppose that this is equivalent to (talking about freeing memory):



delete Form2;





But I would need something like (talking about nullify the pointer):



Form2 = 0;



to do something like checking the existence of the form "if (Form2) .", etc.
and that is not done using "caFree".





Can I do?



__fastcall TForm2::~TForm2()

{

  Form2 = 0;

}

//--------------------------------------------------------------------------
-



I think this is possible but what happens with all the windows standard
controls (labels, combos, etc ) defined in Form2?, are they destroyed
automatically?



Or if this is not possible, how could I delete no modal forms and null them?



Thanks in advance,



Jos� Manuel Tovar