Dear Eddy, Its worse than I thought!!!
I tried your suggestion - no good. I then installed Microsofts Virtual PC (6.0.192.0), setup Win98SE & Delphi 7 (Build 8.1). I made a copy of the Project in a seperate folder on our development server and tried to open the project. I am now getting the Thread Error message as the project loads. The main forms' code module is displayed but the actual form is not available! I think the answer may be to roll the copy back to before I added the thread code and then re-apply the new code in the Win98 VM environment until it breaks - unless anybody has any quicker suggestions. Paul. > ----- Original Message ----- > From: "Eddy Wijaya" <[EMAIL PROTECTED]> > To: advanced_delphi@yahoogroups.com > Subject: Re: [advanced_delphi] TThread Error > Date: Fri, 20 Jun 2008 09:05:44 +0700 > > > Dear Paul, > > Have you tried to moved your declaration of thread to > AfterConstruction of the form ? > because creating a Thread on construction form is some times could > caused you a pain why ? because it is possible that the thread accessing > variable that > possible not created yet.so it is better safe to create the thread on > AfterConstruction Procedure or.. u can create a trigger from the form > ex: when showing the form then create the thread. > > regards, > Eddy Wijaya > > > VCL,Tips,Snippet All Delphi And Codegear Related Could Be Found here > http://www.alldelphi.com > > Paul Bennett wrote: > > > > Hi All, > > Can anyone help with this one? > > > > I have an application written using D7 Ent. which runs fine on XP and > > 98SE. Currently the application loads its data from a CD, but the > > powers that be have decided that they would like to network the > > application and download the data periodically across the LAN. > > > > In order to achieve this I have created a small helper class > > (TAutoDownload) which is owned and created by the main form. This > > helper class is created during the Form Creation procedure and freed > > by the Form Destructor. > > > > TAutoDownload contains 2 TThread objects, 1) a Timer Thread, and 2) > > the thread that handles the actual download of the Data Files. Both > > threads are created as and when required by the Class. > > > > The new application works fine when running on XP, but as soon as I > > try to run it under 98' it crashes with the following error: > > > > Error Creating Form: Thread Error: The Parameter is incorrect (87). > > > > As far as I can tell this error occurs during the Main Forms Creation > > (but before any of the FormCreate code executes - ie the code never > > gets as far as a breakpoint on the first line of the FormCreate > > procedure). > > > > I've done a Google on TThread Errors, Delphi 7 and Win98, but the only > > hit that seems to be relevant refers to bug in the TThreads destructor > > method. I have implemented the suggested change, but it has had no effect. > > > > Any ideas would be very welcome. > > > > TIA > > > > Paul. > > > > > > ------------------------------------------------------------------------ > > > > > > No virus found in this incoming message. > > Checked by AVG. Version: 8.0.100 / Virus Database: 270.4.0/1508 - > > Release Date: 6/18/2008 9:08 PM > > > Experience is something you don't get until just after you need it. -- _______________________________________________ Surf the Web in a faster, safer and easier way: Download Opera 9 at http://www.opera.com Powered by Outblaze
