idTcpClient及IdTcpServer传送记录时的方法:
先将记录转换成TBytes,
使用RawToBytes及BytesToRaw函数。这两个函数包含在IdGlobal单元中。
另外,在接收或发送的时候用到TIdContext类,这个类包含在IdConText单元中。
举例(TcpClient及TcpServer):
记录:
Type
TMyData=record
id:Integer;
Name:Array[0..20] of Char;
Sex:Array[0..10] of Char;
Age:Byte;
Address:Array[0..256] of Char;
UpdateTime:double;
end;
客户端:
procedure SendMsg;
var
SendData:TMyData;
begin
SendData.ID:=10;
StrPCopy(SendData.Name,'Wyatt');
StrPCopy(SendData.Sex,'男');
SendData.age:=25;
StrPCopy(SendData.Address,'江苏省');
SendData.InCom:=S.InSpeed;
SendData.UpdateTime:=Now;
MClient.IOHandler.Write(RawToBytes(SendData,SizeOf(SendData)););
end;
服务端:
procedure TForm1.IdTCPServer1Execute(AContext: TIdContext);;
var
ReadData:TMyData;
buf:TBytes;
begin
SetLength(buf, 0);
AContext.Connection.IOHandler.ReadBytes(buf, SizeOf(ReadData));
BytesToRaw(buf, ReadData, SizeOf(ReadData));
with Memo1.line do
begin
Add('ID:'+Inttostr(ReadData.Id));
Add(Name:'+StrPas(ReadData.Name));
Add('Sex:'+Inttostr(ReadData.sex));
Add('Age:'+Inttostr(ReadData.age));
Add('UpdateTime:'+DateTimeToStr(ReadData.UpdateTime));
end;
end;
//以上在Uses中要增加以下两个单元
uses IdContext,IdGlobal