Button.Caption "einfrieren"?

[Bummi]

um die Frage als solche zu beantworten...

Delphi-Quellcode:

unit Unit2;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TButton=Class(StdCtrls.TButton)
      Procedure SetText(var msg:TMessage);message WM_SETTEXT;
  End;
  TForm2 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private-Deklarationen }
  public
    { Public-Deklarationen }
  end;

var
  Form2: TForm2;

implementation

{$R *.dfm}

procedure TForm2.Button1Click(Sender: TObject);
begin
    Button1.Tag := 1;
    Button1.Caption:='Hallo';
end;

{ TButton }

procedure TButton.SetText(var msg: TMessage);
begin
   if tag=0 then inherited;
end;

end.