login2.pas

感应IC卡电脑考勤、门禁、售饭一卡通管理系统是基于我公司开发生产的ESW型智能卡记录器所具有的对持卡人刷卡卡号、时间、次数进行读取贮存等功能

unit Login;

interface

uses
  SelfFunc,Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls, DBCtrls, Db, Mask, ExtCtrls, Buttons, jpeg;

type
  TfrmLogin = class(TForm)
    Label1: TLabel;
    Label2: TLabel;
    Edit1: TEdit;
    tblCzy: TTable;
    DataSource1: TDataSource;
    cmdCancel: TBitBtn;
    cmdOK: TBitBtn;
    edCzyCode: TEdit;
    edCzyName: TEdit;
    tblCzyCode: TStringField;
    tblCzyName: TStringField;
    tblCzyPassword: TStringField;
    tblCzyQx: TStringField;
    tblCzyQxDept: TStringField;
    qrySession: TQuery;
    qrySessionID: TIntegerField;
    qrySessionDate0: TDateTimeField;
    qrySessionDate1: TDateTimeField;
    qrySessionAllDays: TSmallintField;
    qrySessionMemo: TStringField;
    qrySessionIsEnd: TBooleanField;
    qryNow: TQuery;
    qryNowPWD: TIntegerField;
    Image1: TImage;
    procedure cmdOKClick(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure edCzyCodeExit(Sender: TObject);
    procedure edCzyCodeKeyPress(Sender: TObject; var Key: Char);
    procedure Edit1KeyPress(Sender: TObject; var Key: Char);
    procedure FormKeyDown(Sender: TObject; var Key: Word;
      Shift: TShiftState);
  private
    { Private declarations }
    Function IsDemoSys :Boolean;
  public
    { Public declarations }
  end;

var
  frmLogin: TfrmLogin;

implementation

uses Main;

{$R *.DFM}

Function TfrmLogin.IsDemoSys :Boolean;
var i :integer;
	d2Date1,d3Date0 :TDate;
begin
	qrySession.Open;
    if qrySession.RecordCount <>3 then
    begin
    	Result :=False;
        Exit;
    end;

    d3Date0 :=0;
    d2Date1 :=0;
    i :=1;
    while not qrySession.Eof do
    begin
    	if qrySessionID.Value <>i then
        begin
	    	Result :=False;
    	    Exit;
        end;
        if i =2 then d2Date1 :=qrySessionDate1.Value
        else if i =3 then d3Date0 :=qrySessionDate0.Value;

        i :=i +1;
    	qrySession.Next;
    end;
    if Trunc(d3Date0 -d2Date1) <>4 then Result :=False
    else Result :=True;
end;

procedure TfrmLogin.cmdOKClick(Sender: TObject);
begin
  if Self.ActiveControl =edCzyCode then edCzyCode.OnExit(nil);
    if edCzyName.Text = '' then
    begin
        MsgBox('叫块