如何让窗体最大化，并覆盖任务栏?

Question

我想让主窗体最大化，并覆盖任务栏，如何能实现呢？

Answer 1

设置窗体的FormStyle属性为fsMDIForm
windowstate属性为wsMaximized

Answer 2

unit Unit1;interfaceuses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
    procedure CreateParams(Var Params:TCreateParams);override;
  end;var
  Form1: TForm1;implementation{$R *.dfm}procedure TForm1.Button1Click(Sender: TObject);
begin
    form1.Height:=Screen.Height;
    form1.Width:=screen.Width;
    form1.Top:=0;
    form1.Left:=0;
end;
procedure tform1.CreateParams(var Params:TCreateParams);
begin
  inherited;
  With Params do
  begin
    wndParent:=GetDesktopwindow;
    ExStyle:=ExStyle or WS_EX_TOPMOST;
  end;
end;
end.