   ___________________425

  TCheckBox.    (  CBNum  CBLet)  -
    .       .
  OnCreate    :

void   fastcall TFormI::FormCreate(TObject *Sender)
{

if (EditLetNuml->Modified)
Labell->Caption = "Modified = true";

else Labell->Caption = "Modified = false";

}

     Labell     -
 Modified.

   OnKeyUp  EditLetNum  -
:

FormCreate(Sender) ;

         OnC-
reate      Modified.

  OnClick  CBNum   :

EditLetNuml->EnableNum = CBNum->Checked;

CBLet->Checked = EditLetNuml->EnableLet;

EditLetNuml->SetFocus();

       Enab-
leNum      CBNum.   -
   CBLet    EnableLet. 
,  , ,   false   Enable-
Num,    EnableLet       false, 
 EditLetNumI   EnableLet  true.  , -
       CBLet.

     OnClick  CBLet:

EditLetNuml->EnableLet = CBLet->Checked;

CBNum->Chec)<ed = EditLetNuml->EnableNum;

EditLetNuml->SetFocus() ;

   OnClick  Clear :

EditLetNuml->Clear() ;

FormCreate(Sender) ;

      Clear     -
   Modified.

 .      -
 EnableNum  EnableLet    ,    -
 CBNum  CBLet  .     
       EnableNum  EnableLet.

7.3.2.4 

      OnClear,   
   Clear.  C++Builder     
,   .     -
,      TComponent ( this),  TNoti-
fyEvent.     C++Builder    OnClick 
 ,         TObject*
Sender.        OnClear.

        :