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[Bummi]

Delphi-Quellcode:

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    procedure FormCreate(Sender: TObject);
    procedure FormDestroy(Sender: TObject);
    procedure Button1Click(Sender: TObject);
  private
    { Private-Deklarationen }
    FMyButtonList:TList;
  public
    { Public-Deklarationen }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
 i:Integer;
begin
   for I := 0 to FMyButtonList.Count -1 do
    with TButton(FMyButtonList[i]) do
      begin
        Height := 50;
        Width := 100;
      end;

end;

procedure TForm1.FormCreate(Sender: TObject);
var
 i:Integer;
begin
      FMyButtonList:=TList.Create;
      for I := 0 to ControlCount - 1 do
          if Controls[i] is TButton then
            if TButton(Controls[i]).Tag=123 then //oder eine andere Art der Identifizierung
              FMyButtonList.add(Controls[i]);


end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
      FMyButtonList.Free;

end;

end.