Solved

HTTP Get with progress meter (with Indy?)

Posted on 2009-05-06
3
809 Views
Last Modified: 2012-05-06
I'm looking for sample Delphi 7 code with Indy 9.0 that does an http get of a file, with a hook for an OnWork event (so I can have a progress meter.)

Does anyone know if this is possible with Indy. I'd prefer not to use another library if possible.
0
Comment
Question by:tfield98
3 Comments
 
LVL 18

Accepted Solution

by:
Johnjces earned 500 total points
ID: 24320359
Try the following...

Not certain where I got the code.

John

drop a TIdHTTP, a TLabel a TIdAntiFreeze and a TProgressBar
 
procedure TForm1.IdHttp1WorkBegin(Sender:TObject; AWorkMode:TWorkMode;const AWorkCountMax:Integer);
begin
  if AWorkMode = wmRead then
  begin
    ProgressBar1.Max := AWorkCountMax ;
    ProgressBar1.Position := 0 ;
  end;
end;
 
procedure TForm1.IdHttp1Work(Sender: TObject; AWorkMode: TWorkMode; const AWorkCount: Integer);
begin
  if AWorkMode = wmRead then
  begin
    ProgressBar1.Position := AWorkCount ;
    Label1.Caption := IntToStr(AWorkCount) + 'Bytes of :' + ProgressBar1.Max ;
  end;
end;
 
procedure TForm1.IdHTTP1WorkEnd(Sender: TObject; AWorkMode: TWorkMode);
begin
  if AWorkMode = wmRead then
    Label1.Caption := 'Completed';
end;
 
to download,
 
var
  F: TFileStream;
begin
  F := TFileStream.Create('download.zip', fmCreate);
  try
    IdHTTP1.Get('http://somesite.com/downloads/download.zip', F);
  finally
    F.Free;
  end;
end;

Open in new window

0
 
LVL 26

Expert Comment

by:EddieShipman
ID: 24320457
Damn John, you beat me to it...
If you are using this for normal web page gets, you aren't going to see much progress as it will flash too fast.
0
 

Author Closing Comment

by:tfield98
ID: 31578764
The code worked perfectly (with an added IntToStr that was needed. Thanks A LOT, John!  (Yes, Eddie, I'm using it to download a large file, so it won't flash. But thanks for the heads up.)
0

Featured Post

Free Tool: ZipGrep

ZipGrep is a utility that can list and search zip (.war, .ear, .jar, etc) archives for text patterns, without the need to extract the archive's contents.

One of a set of tools we're offering as a way to say thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
Creating an auto free TStringList The TStringList is a basic and frequently used object in Delphi. On many occasions, you may want to create a temporary list, process some items in the list and be done with the list. In such cases, you have to…
Two types of users will appreciate AOMEI Backupper Pro: 1 - Those with PCIe drives (and haven't found cloning software that works on them). 2 - Those who want a fast clone of their boot drive (no re-boots needed) and it can clone your drive wh…
The Email Laundry PDF encryption service allows companies to send confidential encrypted  emails to anybody. The PDF document can also contain attachments that are embedded in the encrypted PDF. The password is randomly generated by The Email Laundr…

828 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question