indy

I cannot find any simple examples of a DNS lookup using Indy 10's TIdDNSResolver component. They're all either for something I don't need (such as MX/SMTP), or are talking terms with no code . I have tried reading the result based on the few resources I can find, but don't know how I'm supposed to be reading the result. Here's what I have so far... uses IdBaseComponent, IdComponent, IdTCPConnection, IdDNSResolver; function TForm1.Lookup(const Name: String): String; var X: Integer; begin //DNS: TIdDNSResolver DNS.QueryType:= [qtA]; DNS.Resolve(Name); for X:= 0 to DNS.QueryResult.Count-1 do

I am working with streaming packet strings through Indy sockets, and on the client side, I have a thread which reads incoming data from the TIdTCPClient and continuously appending this data to the end of a single string buffer. I have another thread which is continuously reading this buffer from the beginning, copying (and deleting) data as necessary (one complete packet at a time). I know that in any case two threads accessing the same variable can be dangerous. But does this apply to strings too? Or just objects? Can I feel safe with this reading/writing of the same string from two different

I already saw post at Delphi XE4 Indy compatibility issue between TBytes and TidBytes about compatibility issues between the data types tbytes and tidbytes. From the second answer I learned, that it looks like they can't be used together even though they're both array of byte. However, the latest answer says, that in indy 10.5.9 it was dependent of the presence of TBytes, and that only in Indy 10.6 was it completely submitted as array of byte. Anyway,I have a .pas unit which decodes several packets from IdUDPServerUDPRead event, but can't get them together. I always get the error: [dcc32 Error

I would like to add roots to a VirtualTreeView http://www.delphi-gems.com/index.php/controls/virtual-treeview with a thread like this: function AddRoot ( p : TForm1 ) : Integer; stdcall; begin p.VirtualStringTree1.AddChild(NIL); end; var Dummy : DWORD; i : Integer; begin for i := 0 to 2000 do begin CloseHandle(CreateThread(NIL,0, @ADDROOT, Self,0, Dummy)); end; end; The reason for this is that I want to add all connections from my INDY Server to the TreeView. Indy's onexecute/onconnect get's called as a thread. So if 3+ connections come in at the same time the app crashes due to the TreeView.

I'm writing a download manager in Delphi with some custom features like resumable downloads and downloading through proxies. I'm studing different component solutions: Indy and NetHTTP, both seem very close. TNetHTTPClient seem to be an interface of winhttp.dll . TIdHTTP seem to be an interface of wininet.dll (but i'm not sure). TIdHTTP seems like a very old component (maybe very stable/tested) and has tons of documentation online. TNetHTTPClient seems to be a very recent component, and doesn't have good documentation online. I'm a bit undecided... which one to choose? The point is: what is