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..set a message-dialogs default button?
Autor: Thomas Stutz
[ Print tip ]  

Tip Rating (6):  
     


function DefMessageDlg(const ACaption: string;
  const Msg: string;
  DlgType: TMsgDlgType;
  Buttons: TMsgDlgButtons;
  DefButton: Integer;
  HelpCtx: Longint): Integer;
var
  
i: Integer;
  btn: TButton;
begin
  with 
CreateMessageDialog(Msg, DlgType, Buttons) do
    try
      
Caption := ACaption;
      HelpContext := HelpCtx;
      for i := 0 to ComponentCount - 1 do
      begin
        if 
(Components[i] is TButton) then
        begin
          
btn := TButton(Components[i]);
          btn.default := btn.ModalResult = DefButton;
          if btn.default then ActiveControl := btn;
        end;
      end;
      Result := ShowModal;
    finally
      
Free;
    end;
end;

// Sets the focus on the "No"-Button
// Setzt den Fokus auf den "Nein"-Button

procedure TForm1.Button1Click(Sender: TObject);
begin
  if 
DefMessageDlg('Title',
    '....?',
    mtConfirmation,
    mbYesNoCancel,
    mrNo,
    0) = mrYes then
    
ShowMessage('....');
end;

 

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