Go Premium for a chance to win a PS4. Enter to Win

x
?
Solved

Errors inside ActiveX

Posted on 1998-10-24
5
Medium Priority
?
168 Views
Last Modified: 2010-04-06
I am using the TWebBroser ActiveX component. On occasion web pages trigger a EOleError. Is there a way to intercept these using a try/except somewhere. This type of error is rare and I want to cause the application to restart if it occurs (this is an unattended kiosk).
0
Comment
Question by:ymailhot
  • 3
5 Comments
 
LVL 20

Expert Comment

by:Madshi
ID: 1344180
You should run the program in the Delphi IDE, so that Delphi can show you the location where the exception occurs. Then you can build a try..except around this location.

Regards, Madshi.
0
 
LVL 4

Expert Comment

by:itamar
ID: 1344181
Hi ymailhot,

I extracted this from a previous question answered by bozo:


"
    Procedure AppException(Sender: TObject; E:Exception);

    The code for this procedure would look something like this

    Procedure TForm_Main.AppException(Sender: TObject; E: Exception);
    var sEDate,sETime : String;
        sScreen, sControl,sEClass: string;
        myfilehandle: integer;
        F: TextFile;
    begin
     try
         sEDate := datetostr(Date);//Records Date
         sETime := timetostr(Time);//Time of Error
         sScreen := screen.activeform.name;//Active Form
         sControl := screen.activecontrol.name;//Active Control
         sEClass := E.Classname;//Error Class

         assignfile(F,'c:\ErrorFile.txt');
         append(F);
         writeln(f,sEDate,' ',sETime,'',sScreen,'',sControl,         '',sEClass,' ',E.Message);
         closefile(f);

         messagedlg(E.Message,mtWarning,[mbok],0);//Shows user error
     except
           begin
                MYFileHandle := FileCreate('c:\fooderor.txt');
                fileclose(myfilehandle);
           end;

     end;//try-except
    end;

    Then in your Oncreate of the main form add this line of code

     pplication.OnException := AppException;//

    Tells to use AppException Procedure

    Let me know if this doesn't work. It has worked for me in 4 different apps now. Some i use a table this one i use a text file
    to hold all the errors.

    bozo
    ross@stiix.com "
0
 
LVL 4

Expert Comment

by:itamar
ID: 1344182

Is there anybody out there ???
0
 

Author Comment

by:ymailhot
ID: 1344183
Sorry about the delay. Thank you for the code. This will be useful.
0
 
LVL 4

Accepted Solution

by:
itamar earned 360 total points
ID: 1344184
So, I'll assume that you could grade my comment as an answer, right ?
0

Featured Post

How to Use the Help Bell

Need to boost the visibility of your question for solutions? Use the Experts Exchange Help Bell to confirm priority levels and contact subject-matter experts for question attention.  Check out this how-to article for more information.

Question has a verified solution.

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

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…
Introduction I have seen many questions in this Delphi topic area where queries in threads are needed or suggested. I know bumped into a similar need. This article will address some of the concepts when dealing with a multithreaded delphi database…
Are you ready to place your question in front of subject-matter experts for more timely responses? With the release of Priority Question, Premium Members, Team Accounts and Qualified Experts can now identify the emergent level of their issue, signal…
Despite its rising prevalence in the business world, "the cloud" is still misunderstood. Some companies still believe common misconceptions about lack of security in cloud solutions and many misuses of cloud storage options still occur every day. …
Suggested Courses

963 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