删除或添加最大化、最小化按钮 - 回复 "Tommy the CAT" 的问题

本例效果图:

 

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代码文件:

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unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
begin
  Self.BorderIcons := Self.BorderIcons - [biMinimize, biMaximize];
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
  Self.BorderIcons := Self.BorderIcons + [biMinimize, biMaximize];
end;

end.

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设计时修改方法: