unit1.pas

来自「在深度历险网站上发布的所有delphi程序原码。对初学delphi者很有用。」· PAS 代码 · 共 69 行

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Timer1: TTimer;
    Label1: TLabel;
    SpinEdit1: TSpinEdit;
    Label2: TLabel;
    Button1: TButton;
    procedure Timer1Timer(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure SpinEdit1Exit(Sender: TObject);
  private
    procedure WMSysCommand(var message: TWMSysCommand); message WM_SYSCOMMAND;
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

uses xDesktop;

{$R *.DFM}

{ TForm1 }

procedure TForm1.WMSysCommand(var message: TWMSysCommand);
begin
  with message do
    if CmdType and $FFF0 = SC_SCREENSAVE then
      Timer1.Enabled := True;

  inherited;
end;

procedure TForm1.Timer1Timer(Sender: TObject);
begin
  IsScreenSaverRunning(True);
  Timer1.Enabled := False;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
  Perform(WM_SYSCOMMAND, SC_SCREENSAVE, 0);
end;

procedure TForm1.FormCreate(Sender: TObject);
begin
  Timer1.Interval := SpinEdit1.Value * 1000;
end;

procedure TForm1.SpinEdit1Exit(Sender: TObject);
begin
  Timer1.Interval := SpinEdit1.Value * 1000;
end;

end.