mersan
asked on
Real time data on the web?!
Iwould like to have an alternative solution with the TWebmodule and use realtime updating data to the webpage. is this possible to solve and if it is, I would like som source (ofcourse more point will be awarded for that)
ASKER
Hi Shane!
This is what I would like to do.
I have an application that is running on a web server. I would like to be able to show real time data on a website.
Can I use the TWebmodule to push data in to the clients web browser? In some way keeping the connection open and updating the data continusly.
This is what I would like to do.
I have an application that is running on a web server. I would like to be able to show real time data on a website.
Can I use the TWebmodule to push data in to the clients web browser? In some way keeping the connection open and updating the data continusly.
OK, you want to update the webpage on the web server (in real time), but also, any client browsers currently viewing that page, be updated (realtime) as well?
Shane
Shane
ASKER
Exacly, is this possible?
Yes, but not with HTML.
You will need to use ASP.net or ActiveFOrms, etc.
I personally would use an activeform for the data you are updating.
What exactly are you updating - is it data from a Database?
Shane
You will need to use ASP.net or ActiveFOrms, etc.
I personally would use an activeform for the data you are updating.
What exactly are you updating - is it data from a Database?
Shane
ASKER
No it is data from an application. The main issue is that the communication must be http compatible and on port 80 or 443. I do not have never worked with asp.net or Active X. Can you help me to get started with this? I have heard that Active X has alot of security issues and usally is locked down by administrators. Can one use ASP.net instead. I have already made a solution with a java applet, but this didn´t pass the security since I´m using a java socket on another port.
ASKER
Correct me if I´m wrong, but you can only run Active X in Internet Explorer.
Well, what i am proposing is to use an activeform with a TClientSocket utilizing your port number -
and then the data from your main program OR ISAPI/CGI etc, utilizing a TServerSocket to push the data. I dont Believe you would have any security issues then...
SHane
and then the data from your main program OR ISAPI/CGI etc, utilizing a TServerSocket to push the data. I dont Believe you would have any security issues then...
SHane
Yeah, you can only run ActiveX in IE, however, do you actually know someone who still uses Netscape, Cause I sure dont. And if they do - well, touch cookies, get IE!
<SMILE>
Shane
<SMILE>
Shane
ASKER
Well it is a request from our client. It is preferably that the solution will work with IE, NS and Opera. I don´t know what to say :o)
But still if we can have an Active Form solution working it could be an alternative to my Java applet. Can you do this?
And if you can, how long time could it take? I´m leaving for Cyprus in 28 hours. And I will be back in 2 weeks (there is a limitation with internet there)
But still if we can have an Active Form solution working it could be an alternative to my Java applet. Can you do this?
And if you can, how long time could it take? I´m leaving for Cyprus in 28 hours. And I will be back in 2 weeks (there is a limitation with internet there)
What, you want me to write it for you.... sure i get 60.00 / hour - <SMILE>
Create a ActiveForm and add a TClientSocket (Component no longer exists in D7, you need to add the sockets unit to your ActiveForm, and create the TClientSocket on the fly (runtime) and set the properties (i.e. port). Then create the code for the Events (i.e. onListen).
From your main app, you need to do the same thing but with a TServerSocket. Then write the code in its events to send the data to the port.
TServerSocket & TClientSocket are just examples (they are pretty simple). there are others such as Indy, ICS, etc. you could look at.
If you have to implement this in less than 28 hours, well, i suggest you get some " mountain dew" and get going on it....
Then again, we are both not sure that this is what you will need (100%), its a solution to try.
Sorry, but for 125 points, its all i can offer, maybe others would be willing to write the code for you.
If you need help alog the way, with the events, ot other things, i could help then.....
Shane
Create a ActiveForm and add a TClientSocket (Component no longer exists in D7, you need to add the sockets unit to your ActiveForm, and create the TClientSocket on the fly (runtime) and set the properties (i.e. port). Then create the code for the Events (i.e. onListen).
From your main app, you need to do the same thing but with a TServerSocket. Then write the code in its events to send the data to the port.
TServerSocket & TClientSocket are just examples (they are pretty simple). there are others such as Indy, ICS, etc. you could look at.
If you have to implement this in less than 28 hours, well, i suggest you get some " mountain dew" and get going on it....
Then again, we are both not sure that this is what you will need (100%), its a solution to try.
Sorry, but for 125 points, its all i can offer, maybe others would be willing to write the code for you.
If you need help alog the way, with the events, ot other things, i could help then.....
Shane
ASKER
Well I was thinking 500 p for some code just so I can get started. Not the whole thing :) Does this sound like a good deal?
I will draw you up some code. In the meantime, you can get started by creating your activeform project and getting your html code set to imbed it....
SHane
SHane
ASKER
Sounds Great. I will start it up, Is D5 working for this, or do I need D7?
ASKER CERTIFIED SOLUTION
membership
This solution is only available to members.
To access this solution, you must be a member of Experts Exchange.
Sorry,
ClientSocket1.Active := True;
=
ClientSckt.Active:= True;
Shane
ClientSocket1.Active := True;
=
ClientSckt.Active:= True;
Shane
ASKER
I have to test this first thing in the morning, My compiler at home stopped working. Sorry. Can I get back to you tomorrow? (11 h)
Its not done yet, im still building it
Shane
Shane
Its not done yet, im still building it
Shane
Shane
I have't done the server code yet
Shane
Shane
Here is the html with the imbedded OCX
<HTML>
<H1> Delphi 7 ActiveX Test Page </H1><p>
You should see your Delphi 7 forms or controls embedded in the form below.
<HR><center><P>
<OBJECT
classid="clsid:2BDCDEDA-5A
codebase="./TClientFormPro
width=350
height=250
align=center
hspace=0
vspace=0
>
</OBJECT>
</HTML>
<HTML>
<H1> Delphi 7 ActiveX Test Page </H1><p>
You should see your Delphi 7 forms or controls embedded in the form below.
<HR><center><P>
<OBJECT
classid="clsid:2BDCDEDA-5A
codebase="./TClientFormPro
width=350
height=250
align=center
hspace=0
vspace=0
>
</OBJECT>
</HTML>
ASKER
OK, roger that. Great. I will check everything in a couple of hours...
Here is an example of the Server (your app that will do the actuall updating of info).
SHane
unit UntMain;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ScktComp, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
procedure FormActivate(Sender: TObject);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure ClientWrite(Sender: TObject; Socket: TCustomWinSocket);
procedure ClientConnect(Sender: TObject; Socket: TCustomWinSocket);
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
ServerSckt: TServerSocket;
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.FormActivate(Sender
begin
ServerSckt:= TServerSocket.Create(Self)
ServerSckt.Port:= 80;
ServerSckt.OnClientWrite:=
ServerSckt.OnClientConnect
ServerSckt.Active := True;
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
ServerSckt.Free;
end;
procedure TForm1.ClientWrite(Sender:
begin
//
end;
procedure TForm1.ClientConnect(Sende
begin
ShowMEssage('Client Connected');
end;
end.
Shane
SHane
unit UntMain;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, ScktComp, StdCtrls;
type
TForm1 = class(TForm)
Button1: TButton;
procedure FormActivate(Sender: TObject);
procedure FormClose(Sender: TObject; var Action: TCloseAction);
procedure ClientWrite(Sender: TObject; Socket: TCustomWinSocket);
procedure ClientConnect(Sender: TObject; Socket: TCustomWinSocket);
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
ServerSckt: TServerSocket;
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.FormActivate(Sender
begin
ServerSckt:= TServerSocket.Create(Self)
ServerSckt.Port:= 80;
ServerSckt.OnClientWrite:=
ServerSckt.OnClientConnect
ServerSckt.Active := True;
end;
procedure TForm1.FormClose(Sender: TObject; var Action: TCloseAction);
begin
ServerSckt.Free;
end;
procedure TForm1.ClientWrite(Sender:
begin
//
end;
procedure TForm1.ClientConnect(Sende
begin
ShowMEssage('Client Connected');
end;
end.
Shane
ASKER
is it possible for you to send med your project files? The points is yours any way, but this will save me some
time tomorrow when I get to a computer that works in the morning. I will test it and grant you the points tomorrow. Thanks a bunch. could you send it to mersan@hehe.com?
time tomorrow when I get to a computer that works in the morning. I will test it and grant you the points tomorrow. Thanks a bunch. could you send it to mersan@hehe.com?
Yes, i will mail them to you -
Shane
Shane
ASKER
Thanks for your help, I will be online tomorrow again.
ASKER
Hi there, Tanks alot for your help! Do you think you can mail a copy of your project to me?
Shane