116 lines
2.7 KiB
ObjectPascal
116 lines
2.7 KiB
ObjectPascal
unit U_Link;
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interface
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uses
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Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
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IniFiles,Dialogs, ScktComp, ExtCtrls;
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type
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TCommBlock = record
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workFlag:integer; //0:开始接受字符串，
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linkString:string[255];
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// buf:array [0..Buffersize] of char;
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end;
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TfrmLink = class(TForm)
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CSocket: TClientSocket;
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AADs: TPanel;
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procedure CSocketRead(Sender: TObject; Socket: TCustomWinSocket);
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procedure FormClose(Sender: TObject; var Action: TCloseAction);
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procedure CSocketConnect(Sender: TObject; Socket: TCustomWinSocket);
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procedure FormDestroy(Sender: TObject);
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procedure CSocketError(Sender: TObject; Socket: TCustomWinSocket;
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ErrorEvent: TErrorEvent; var ErrorCode: Integer);
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procedure FormCreate(Sender: TObject);
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private
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{ Private declarations }
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public
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fADOConnString:string;
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LinkFlag:string;
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function LinkTxServer():Boolean;
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{ Public declarations }
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end;
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var
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frmLink: TfrmLink;
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implementation
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//uses U_Main;
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{$R *.dfm}
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function TfrmLink.LinkTxServer():Boolean;
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var
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CommBlock : TCommBlock;
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begin
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result:=false;
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try
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CommBlock.workFlag:=strtointdef(LinkFlag,-1);
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CommBlock.linkString:='';
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CSocket.Socket.SendBuf(CommBlock,SizeOf(CommBlock));
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Result:=true;
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except
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Application.MessageBox('连接通讯服务器失败！','错误信息',MB_ICONERROR);
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end;
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end;
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procedure TfrmLink.CSocketRead(Sender: TObject; Socket: TCustomWinSocket);
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var
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CommBlock1: TCommBlock;
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begin
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try
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CSocket.Socket.ReceiveBuf(CommBlock1,SizeOf(CommBlock1));
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fADOConnString:=trim(CommBlock1.linkString);
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ModalResult:=1;
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except
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ModalResult:=-1;
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end;
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end;
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procedure TfrmLink.FormClose(Sender: TObject; var Action: TCloseAction);
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begin
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Action:=cahide;
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end;
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procedure TfrmLink.CSocketConnect(Sender: TObject;
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Socket: TCustomWinSocket);
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begin
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if not LinkTxServer() then ModalResult:=-1;
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end;
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procedure TfrmLink.FormDestroy(Sender: TObject);
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begin
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frmLink:=nil;
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end;
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procedure TfrmLink.CSocketError(Sender: TObject; Socket: TCustomWinSocket;
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ErrorEvent: TErrorEvent; var ErrorCode: Integer);
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begin
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Application.MessageBox('连接通讯服务器失败！','错误信息',MB_ICONERROR);
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application.Terminate;
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end;
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procedure TfrmLink.FormCreate(Sender: TObject);
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var
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IniFile: TIniFile;
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LinkServer:string;
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begin
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try
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IniFile := TIniFile.Create(ExtractFilePath(Application.ExeName) + 'SYSTEMSET.INI');
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LinkServer := IniFile.ReadString('SERVER', '服务器地址','127.0.0.1');
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LinkFlag:= IniFile.ReadString('SERVER', '服务器地址类型','0');
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finally
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IniFile.Free;
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end;
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try
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CSocket.Host:=trim(LinkServer);
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CSocket.Port:=47936;
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CSocket.Open;
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except
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ModalResult:=-1;
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end;
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end;
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end.
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