delphi组件,用于在运行时显示/隐藏控件

procedure TForm1.Button1Click(Sender: TObject);
begin
  if Button2.Visible then
    AnimateWindow(Button2.Handle,250,AW_HIDE or AW_VER_NEGATIVE or AW_SLIDE)
  else
    AnimateWindow(Button2.Handle,AW_VER_POSITIVE or AW_SLIDE);
  Button2.Visible := not Button2.Visible; // synch with VCL
end;

编辑：隐藏的线程版本同时显示多个控件：

type
  TForm1 = class(TForm)
    ..
  private
    procedure AnimateControls(Show: Boolean; Controls: array of TWinControl);
    procedure OnAnimateEnd(Sender: TObject);
  public
  end;

implementation
  ..

type
  TAnimateThr = class(TThread)
  protected
    procedure Execute; override;
  public
    FHWnd: HWND;
    FShow: Boolean;
    constructor Create(Handle: HWND; Show: Boolean);
  end;

{ TAnimateThr }

constructor TAnimateThr.Create(Handle: HWND; Show: Boolean);
begin
  FHWnd := Handle;
  FShow := Show;
  FreeOnTerminate := True;
  inherited Create(True);
end;

procedure TAnimateThr.Execute;
begin
  if FShow then 
    AnimateWindow(FHWnd,AW_VER_POSITIVE or AW_SLIDE)
  else 
    AnimateWindow(FHWnd,AW_HIDE or AW_VER_NEGATIVE or AW_SLIDE);
end;

{ Form1 }

procedure TForm1.OnAnimateEnd(Sender: TObject);
begin
  FindControl(TAnimateThr(Sender).FHWnd).Visible := TAnimateThr(Sender).FShow;
end;

procedure TForm1.AnimateControls(Show: Boolean; Controls: array of TWinControl);
var
  i: Integer;
begin
  for i := Low(Controls) to High(Controls) do
    with TAnimateThr.Create(Controls[i].Handle,Show) do begin
      OnTerminate := OnAnimateEnd;
      Resume;
    end;
end;


procedure TForm1.Button5Click(Sender: TObject);
begin
  AnimateControls(not Button1.Visible,[Button1,Button2,Button3,Edit1,CheckBox1]);
end;
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