CloseQuery im .Net

[Andidreas]

danke für denn tipp

so gehts

Delphi-Quellcode:

procedure Main_Form.Main_Form_Closing(sender: System.Object; e: System.ComponentModel.CancelEventArgs);

var
RC : integer;

begin

  RC := MessageDlg('Close Adress Book?', mtwarning, mbyesno, 0);

  If RC = 6 Then
    e.Cancel := False
  Else
    e.Cancel := True;

end;