unabout.pas

一个电力的巡检项目,用到三个控件,可自己去下载,

unit UnAbout;

interface

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

type
  TAbout_Frm = class(TForm)
    Timer1: TTimer;
    Panel1: TPanel;
    Image1: TImage;
    Label1: TLabel;
    Label2: TLabel;
    Label4: TLabel;
    Label3: TLabel;
    Label5: TLabel;
    Label6: TLabel;
    procedure FormClose(Sender: TObject; var Action: TCloseAction);
    procedure FormClick(Sender: TObject);
    procedure Timer1Timer(Sender: TObject);
    procedure Label1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  About_Frm: TAbout_Frm;

implementation

uses Math;

{$R *.dfm}

procedure TAbout_Frm.FormClose(Sender: TObject; var Action: TCloseAction);
begin
Action:=caFree;
end;

procedure TAbout_Frm.FormClick(Sender: TObject);
begin
  if About_Frm<>nil then
  Timer1.Enabled:=True;
end;

procedure TAbout_Frm.Timer1Timer(Sender: TObject);
begin
  AlphaBlendValue:=AlphaBlendValue-30;
  If AlphaBlendValue<=30 then
    Close;
end;

procedure TAbout_Frm.Label1Click(Sender: TObject);
begin
  ShellExecute(handle, 'open', 'http://www.tobto.com', nil, nil, SW_SHOWNORMAL);
end;

end.