internet search
lazarus / 11-Options

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skaner1900 · 2010-07-26 14:16

Code: [Select]procedure TForm1.Button1Click(Sender: TObject);
var
sr:tsearchrec;
begin
  if FindFirst('c:\*.*',faAnyFile,sr)=0 then
      begin
      repeat
      ListBox1.Items.Add('c:\'+sr.Name);
      until FindNext(sr) <> 0;
      end;
end;
How change this code to search files in the Internet?
for example: i like to get every links to graphic files on simple page
how check graphic resolution?

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Mujie · 2010-07-26 15:01

Although I do not have experience in the field of network programming,
we encourage you to learn network programming using Internet component
in Lazarus, like Indy or Synapse. Cheer...

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JD · 2010-08-17 05:59

You can search for files on the Internet using protocols like FTP,
HTTP etc. However you need to understand a bit of network programming
to use these protocols. Lazarus has components like Indy, Synapse and
LNet that give you access to these protocols. Install any one of them
& then search for documentation & examples.

The link below is from a book that shows how to use Google to search
the Internet (HTTP) for websites matching a keyword from inside a
Delphi application.

http://etutorials.org/Programming/mastering+delphi+7/Part+IV+Delphi+th
e+Internet+and+a+.NET+Preview/Chapter+19+Internet+Programming+Sockets+
and+Indy/Working+with+HTTP/

You'll need to be persistent because there's a learning curve and
documentation is not easy to come by. However, it is well worth the
effort.

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sandzmiles · 2011-01-05 00:12

There are some useful references on the net, but i usually read here.
The site gives more accurate and step by step procedures especially on
troubleshooting. Guys here are very nice and cool.