if( myVar == true)
return true;
else if( myVar == false )
return false;
else
return !true && !false;

CWindow* pWnd = this->GetParent()->GetParent()->GetParent()->GetParent()->GetParent()->GetParent()->GetParent()->GetParent();

{ Функция преобразования True/False }
function InvertBoolean(Value: Boolean):Boolean;
begin
if Value then Result := False
else Result := True;
end;