gettickcountu.pas

DelphiWin32核心API参考光盘内容.是学习书籍中的源码,便于学习.

unit GetTickCountU;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Label1: TLabel;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
  Tick: DWORD;    // holds the number of milliseconds
begin
  {get the number of milliseconds since Windows was started}
  Tick:= GetTickCount;

  {display the number of milliseconds}
  Label1.Caption := 'Number of Milliseconds: ' + IntToStr(Tick);
end;

end.