I believe the OnCreate method is executed *after* the form has been created, i.e. after the components on the form have been created, which is why I suggested deactivating all possible components and activating them manually in the OnCreate method. If that doesn't do the trick, and if this were happening to me, I'd use a nifty feature in GExperts: Components to Code. In other words, create the components 'manually'. Obviously I wouldn't do this for every component, but you should be able to rule out some and you may already suspect some component(s).
The above two methods are handy when you have components that may under certain circumstances throw exceptions, and allow you to react to that, in a controlled and informative way so that the user isn't just greeted with a crash screen. best regards, Laurent On Wed, Jul 8, 2009 at 2:21 AM, Ross Levis <r...@stationplaylist.com> wrote: > The user just got around to installing a test version of the app with some > ShowMessages in the Form's OnCreate event, but nothing appeared, so it's > not > even getting to execute the OnCreate event. > > In summary, the app hangs during > Application.CreateForm(TStudioForm, StudioForm); > > But the OnCreate event for this form is not executed for this user. > > So what does this mean? What else is executing during for CreateForm > procedure that could cause it to hang? How can I debug this? I have > MadExcept compiled in but it doesn't activate. > > Thanks, > Ross. > > > -----Original Message----- > > From: delphi-boun...@elists.org [mailto:delphi-boun...@elists.org] On > > Behalf > > Of Wilfried Mestdagh > > Sent: Wednesday, 17 June 2009 10:56 p.m. > > To: Borland's Delphi Discussion List > > Subject: Re: App hanging during load > > > > Hello Ross, > > > > > Application.CreateForm(TStudioForm, StudioForm); > > > showmessage('Initialize 3'); <<< IT DOESN'T GET HERE > > > > You can set some debug information in the OnCreate event of TStudioForm. > > > > --- > > Rgds, Wilfried > > http://www.mestdagh.biz > > > > -----Original Message----- > > From: Ross Levis [mailto:r...@stationplaylist.com] > > Sent: Wednesday, 17 June 2009 6:23 p.m. > > To: 'Borland's Delphi Discussion List' > > Subject: App hanging during load > > > > I'm having a major issue with my D7 application not loading on some Vista > > computers. It is only affecting 3 or 4 users out of several hundred > using > > Vista, with most users still using XP where no problems have ever been > > reported. The app itself hasn't changed much over several years. > > > > I added some ShowMessages to the app to attempt to pinpoint where it is > > hanging, and this turned out to be in the project source file... > > > > SplashForm := TSplashForm.Create(Application); > > SplashForm.Show; > > showmessage('Initialize 1'); > > Application.Initialize; > > showmessage('Initialize 2'); > > Application.Title := 'Studio'; > > Application.CreateForm(TStudioForm, StudioForm); > > showmessage('Initialize 3'); <<< IT DOESN'T GET HERE > > > > A user reports the last message is 'Initialize 2'. > > > > One user reported the problem started after Windows Update installed > Vista > > SP2, but other users had this problem from day 1 with SP1. > > > > I have had Vista SP1 installed here for 12 months or more and never had > any > > problem running my software. I recently updated to SP2 and still no > > problem. > > > > I believe all the Initialization sections of all units are executed > during > > the Uses clauses above this code. StudioForm itself doesn't have an > > Initialization section. I've checked all the Initialization sections of > > all > > my units and they execute before 'Initialize 1'. > > > > Is there any way to debug this further, or any ideas what the problem > could > > be. I have madExcept compiled into the code but it doesn't help. > > > > Is it possible some unit specified in the Uses clause of StudioForm could > > be > > hanging? > > > > Thanks, > > Ross. > > _______________________________________________ > Delphi mailing list -> Delphi@elists.org > http://lists.elists.org/cgi-bin/mailman/listinfo/delphi > _______________________________________________ Delphi mailing list -> Delphi@elists.org http://lists.elists.org/cgi-bin/mailman/listinfo/delphi
