unit U_DataLink;

interface

uses
  SysUtils, Classes, DB, ADODB, ImgList, Controls, cxStyles, cxLookAndFeels,
  Windows, Messages, forms, OleCtnrs, DateUtils, ExtCtrls, SyncObjs, cxClasses,
  dxSkinsCore, dxSkinsDefaultPainters, System.ImageList, dxSkinBasic,
  dxSkinBlack, dxSkinBlue, dxSkinBlueprint, dxSkinCaramel, dxSkinCoffee,
  dxSkinDarkroom, dxSkinDarkSide, dxSkinDevExpressDarkStyle,
  dxSkinDevExpressStyle, dxSkinFoggy, dxSkinGlassOceans, dxSkinHighContrast,
  dxSkiniMaginary, dxSkinLilian, dxSkinLiquidSky, dxSkinLondonLiquidSky,
  dxSkinMcSkin, dxSkinMetropolis, dxSkinMetropolisDark, dxSkinMoneyTwins,
  dxSkinOffice2007Black, dxSkinOffice2007Blue, dxSkinOffice2007Green,
  dxSkinOffice2007Pink, dxSkinOffice2007Silver, dxSkinOffice2010Black,
  dxSkinOffice2010Blue, dxSkinOffice2010Silver, dxSkinOffice2013DarkGray,
  dxSkinOffice2013LightGray, dxSkinOffice2013White, dxSkinOffice2016Colorful,
  dxSkinOffice2016Dark, dxSkinOffice2019Black, dxSkinOffice2019Colorful,
  dxSkinOffice2019DarkGray, dxSkinOffice2019White, dxSkinPumpkin, dxSkinSeven,
  dxSkinSevenClassic, dxSkinSharp, dxSkinSharpPlus, dxSkinSilver,
  dxSkinSpringtime, dxSkinStardust, dxSkinSummer2008, dxSkinTheAsphaltWorld,
  dxSkinTheBezier, dxSkinValentine, dxSkinVisualStudio2013Blue,
  dxSkinVisualStudio2013Dark, dxSkinVisualStudio2013Light, dxSkinVS2010,
  dxSkinWhiteprint, dxSkinWXI, dxSkinXmas2008Blue;

type
  TMyThread = class(TThread)
  protected
    procedure Execute; override;
  end;

var
  DConString: string;   {全局连接字符串}
  server, dtbase, user, pswd: string;  {数据库连接参数}
  DCurHandle: hwnd;     //当前窗体句柄
  DName: string;   //#用户名#//
  DCode: string;     //#用户编号#//
  Ddatabase: string;    //#数据库名称#//
  DTitCaption: string;  //#主窗体名称#//
  PicSvr: string;
  fDllFileName: string;
  DParameters1, DParameters2, DParameters3, DParameters4, DParameters5: string; // 外部参数；
  DParameters6, DParameters7, DParameters8, DParameters9, DParameters10: string; //外部参数；
  OldDllApp: Tapplication; //保存原有句柄
  NewDllApp: Tapplication; //当前句柄
  MainApplication: Tapplication;
  DFormCode: integer;  //当前窗口号
  IsDelphiLanguage: integer;
  DServerDate: TdateTime; //服务器时间
  DCompany: string;       //公司
  IpCall: Integer;
  IpWLDZStr: string;
  UserDataFlag: string;

type
  TDataLink_TradeMarket = class(TDataModule)
    AdoDataLink: TADOQuery;
    ADOLink: TADOConnection;
    ThreeImgList: TImageList;
    ThreeLookAndFeelCol: TcxLookAndFeelController;
    ThreeColorBase: TcxStyleRepository;
    SHuangSe: TcxStyle;
    SkyBlue: TcxStyle;
    Default: TcxStyle;
    QHuangSe: TcxStyle;
    Red: TcxStyle;
    FontBlue: TcxStyle;
    TextSHuangSe: TcxStyle;
    FonePurple: TcxStyle;
    FoneClMaroon: TcxStyle;
    FoneRed: TcxStyle;
    RowColor: TcxStyle;
    handBlack: TcxStyle;
    cxBlue: TcxStyle;
    SHuangSeCu: TcxStyle;
    Timer_link: TTimer;
    ImageList_new32: TImageList;
    procedure DataModuleDestroy(Sender: TObject);
    procedure Timer_linkTimer(Sender: TObject);
    procedure DataModuleCreate(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

  TMakebar = procedure(ucData: pchar; nDataLen: integer; nErrLevel: integer; nMask: integer; nBarEdition: integer; szBmpFileName: pchar; nScale: integer); stdcall;

  TMixtext = procedure(szSrcBmpFileName: PChar; szDstBmpFileName: PChar; sztext: PChar; fontsize, txtheight, hmargin, vmargin, txtcntoneline: integer); stdcall;

var
  DataLink_TradeMarket: TDataLink_TradeMarket;
  CriticalSection: TCriticalSection; {声明临界}

implementation
{$R *.dfm}

procedure TMyThread.Execute;
begin
  FreeOnTerminate := True;
  CriticalSection.Enter;
  try
    with DataLink_TradeMarket.AdoDataLink do
    begin
      close;
      sql.Clear;
      sql.Add('select getdate()');
      open;
    end;
  except
    try
      with DataLink_TradeMarket.ADOLink do
      begin
        Connected := false;
        ConnectionString := DConString;
        LoginPrompt := false;
        Connected := true;
      end;
    except

    end;
  end;
  CriticalSection.Leave;
end;

procedure TDataLink_TradeMarket.DataModuleDestroy(Sender: TObject);
begin
  CriticalSection.Free;
  DataLink_TradeMarket := nil;
end;

procedure TDataLink_TradeMarket.Timer_linkTimer(Sender: TObject);
begin
  TMyThread.Create(False);
end;

procedure TDataLink_TradeMarket.DataModuleCreate(Sender: TObject);
begin
  CriticalSection := TCriticalSection.Create;
end;

end.