lazarus/examples/helloform.pp
2017-01-29 21:04:32 +00:00

72 lines
2.2 KiB
ObjectPascal

{
***************************************************************************
* *
* This source is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This code is distributed in the hope that it will be useful, but *
* WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
* General Public License for more details. *
* *
* A copy of the GNU General Public License is available on the World *
* Wide Web at <http://www.gnu.org/copyleft/gpl.html>. You can also *
* obtain it by writing to the Free Software Foundation, *
* Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1335, USA. *
* *
***************************************************************************
}
unit HelloForm;
{$mode objfpc}
{$H+}
interface
uses SysUtils, Classes, Forms, Buttons, StdCtrls;
type
THello = class(TForm)
button1 : TButton;
public
constructor Create(AOwner: TComponent); override;
procedure button1Click(Sender : TObject);
end;
var
Hello : THello;
implementation
constructor THello.Create(AOwner: TComponent);
begin
inherited CreateNew(AOwner, 1);
Caption := 'Hello World';
Width := 200;
Height := 75;
Left := 200;
Top := 200;
button1 := TButton.Create(Self);
button1.OnClick := @button1click;
button1.Parent := Self;
button1.left := (width - 75) div 2 ;
button1.top := (height - 32) div 2;
button1.width := 75;
button1.height := 32;
button1.caption := 'Close';
button1.Show;
Self.Constraints.MaxWidth:= 500;
end;
procedure THello.button1Click(Sender : TObject);
begin
close;
end;
end.