BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Splash screen problem          BorlandTalk.com Forum Index -> C++ Builder (VCL Components Usage) View previous topic :: View next topic   Author Message Ted Byers Guest Posted: Fri Nov 21, 2003 5:02 pm    Post subject: Splash screen problem Since the constructor for my main form needs to do some significant processing, I created a splash screen that is explicitly created at the beginning of the main form's constructor and explicitly closed and deleted once the processing is complete. There is a progress bar on the splash screen that is updated during the processing. The problem is that, at present, there are only three controls on the splash screen, two labels and the progress bar, but only the progress bar is properly drawn and updated. The two labels NEVER appear, and the processing is half done by the time the background of the splash screen is ever painted. How can I get the Splash screen to properly display itself? Thanks, Ted Back to top Giuliano Guest Posted: Fri Nov 21, 2003 6:11 pm    Post subject: Re: Splash screen problem On Fri, 21 Nov 2003 12:02:02 -0500, "Ted Byers" <r.ted.byers (AT) sympatico (DOT) ca> wrote: Quote: Since the constructor for my main form needs to do some significant processing, I created a splash screen that is explicitly created at the [snip] Hi Ted, have a look at this splash screen demo project: http://81.72.236.130/SplashScreenDemo.zip Regards Giuliano Back to top Hans Galema Guest Posted: Fri Nov 21, 2003 6:20 pm    Post subject: Re: Splash screen problem Ted Byers wrote: Quote: How can I get the Splash screen to properly display itself? Add some Application->ProcessMessages(); to the constructor of the MainForm. Or maybe only one call before the mainform is created. Hans. Back to top Hans Galema Guest Posted: Fri Nov 21, 2003 7:32 pm    Post subject: Re: Splash screen problem Giuliano wrote: Quote: have a look at this splash screen demo project: http://81.72.236.130/SplashScreenDemo.zip It's a nice project. But please next time tell that the project is in bcb6. Not everybody uses bcb6. Hans. Back to top Remy Lebeau (TeamB) Guest Posted: Fri Nov 21, 2003 8:20 pm    Post subject: Re: Splash screen problem "Ted Byers" <r.ted.byers (AT) sympatico (DOT) ca> wrote Quote: The problem is that, at present, there are only three controls on the splash screen, two labels and the progress bar, but only the progress bar is properly drawn and updated. The two labels NEVER appear, and the processing is half done by the time the background of the splash screen is ever painted. How can I get the Splash screen to properly display itself? At that point in time, the main message queue is not running yet. So when you create your splash screen instance, you need to call its Update() method after calling Show(), ie: TSplashForm *splash = new TSplashForm(Application); splash->Show(); splash->Update(); //... delete splash; Gambit Back to top Ted Byers Guest Posted: Fri Nov 21, 2003 9:00 pm    Post subject: Re: Splash screen problem "Hans Galema" <dontusethis (AT) dontusethis (DOT) nl> wrote Quote: Ted Byers wrote: How can I get the Splash screen to properly display itself? Add some Application->ProcessMessages(); to the constructor of the MainForm. Or maybe only one call before the mainform is created. Hi Hans, Thanks. However, I had already tried this and it didn't work. Thanks anyway, Ted Back to top Ted Byers Guest Posted: Fri Nov 21, 2003 9:00 pm    Post subject: Re: Splash screen problem Thanks Giuliano Ted Back to top Ted Byers Guest Posted: Fri Nov 21, 2003 9:01 pm    Post subject: Re: Splash screen problem Hi Gambit, splash->Update(); was exactly what I needed, and worked flawlessly. 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