BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  splahs screen Goto page 1, 2  Next          BorlandTalk.com Forum Index -> C++ Builder (Graphics) View previous topic :: View next topic   Author Message Bono Guest Posted: Thu Mar 09, 2006 6:03 pm    Post subject: splahs screen Hi everybody!! I'm attempting to create a SplashScreen for my app. I created a corma nd placed an image. That's enough for me. Now I want to display it as the first form... then wait a couple of seconds (Sleep(2000) works fine!).. and then unload this form and show the main MDI form. I hope someone can give me some idea. Thanks!! Andrea Back to top Bono Guest Posted: Thu Mar 09, 2006 7:03 pm    Post subject: Re: splahs screen I wrote: frmSplash = new TfrmSplash(Application); frmSplash->Show(); Sleep (2000); delete frmSplash; But I get an error: cannot convert 'TApplication *' to 'TfrmSplash'. Th constructor of TfrmSplash is: __fastcall TfrmSplash::TfrmSplash(TComponent* Owner): TForm(Owner) { .... } "Hans Galema" <notused (AT) notused (DOT) nl> ha scritto nel messaggio news:44106b3b$1 (AT) newsgroups (DOT) borland.com... Quote: Bono wrote: I'm attempting to create a SplashScreen for my app. I created a corma nd placed an image. That's enough for me. Now I want to display it as the first form... then wait a couple of seconds (Sleep(2000) works fine!).. and then unload this form and show the main MDI form. I hope someone can give me some idea. Add some code to the WinMain function of your project. If Tform2 is your splashform then something like this: #include "Unit2.h" //-------------------------------------------------------------------------- - Quote: WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int) { try { Application->Initialize(); // start of added code Form2 = new TForm2(Application ); Form2->Show(); Sleep (2000); delete Form2; // end of added code Application->CreateForm(__classid(TForm1), &Form1); Application->Run(); } catch (Exception &exception) { Application->ShowException(&exception); } return 0; } Hans. Back to top Hans Galema Guest Posted: Thu Mar 09, 2006 7:03 pm    Post subject: Re: splahs screen Bono wrote: Quote: I'm attempting to create a SplashScreen for my app. I created a corma nd placed an image. That's enough for me. Now I want to display it as the first form... then wait a couple of seconds (Sleep(2000) works fine!).. and then unload this form and show the main MDI form. I hope someone can give me some idea. Add some code to the WinMain function of your project. If Tform2 is your splashform then something like this: #include "Unit2.h" //--------------------------------------------------------------------------- WINAPI WinMain(HINSTANCE, HINSTANCE, LPSTR, int) { try { Application->Initialize(); // start of added code Form2 = new TForm2(Application ); Form2->Show(); Sleep (2000); delete Form2; // end of added code Application->CreateForm(__classid(TForm1), &Form1); Application->Run(); } catch (Exception &exception) { Application->ShowException(&exception); } return 0; } Hans. Back to top Vladimir Stefanovic Guest Posted: Thu Mar 09, 2006 9:03 pm    Post subject: Re: splahs screen Quote: But I get an error: cannot convert 'TApplication *' to 'TfrmSplash'. Then try /untested/: Instead of: Quote: frmSplash = new TfrmSplash(Application); Use: frmSplash = new TfrmSplash( static_cast<void *>(NULL) ); or just this (if the compiler can swallow that, I'm not sure): frmSplash = new TfrmSplash( NULL ); -- Best Regards, Vladimir Stefanovic Back to top Hans Galema Guest Posted: Thu Mar 09, 2006 9:03 pm    Post subject: Re: splahs screen Bono wrote: Quote: I wrote: Please trim your quotes. Quote: frmSplash = new TfrmSplash(Application); But I get an error: cannot convert 'TApplication *' to 'TfrmSplash'. Th constructor of TfrmSplash is: __fastcall TfrmSplash::TfrmSplash(TComponent* Owner): TForm(Owner) There is no reason for such an error message. What is going on more ? Hans. Back to top Remy Lebeau (TeamB) Guest Posted: Thu Mar 09, 2006 9:03 pm    Post subject: Re: splahs screen "Bono" <bono (AT) ingv (DOT) it> wrote in message news:44106e6c$1 (AT) newsgroups (DOT) borland.com... Quote: But I get an error: cannot convert 'TApplication *' to 'TfrmSplash'. Did you #include TfrmSplash's header file so that WinMain() knows what the constructor actually looks like? Did you declare 'frmSplash' as a pointer? The error message suggests that you did not. Gambit Back to top Pete Guest Posted: Sat Mar 11, 2006 3:03 pm    Post subject: Re: splahs screen Quote: But I get an error: cannot convert 'TApplication *' to 'TfrmSplash'. It looks like your 'TfrmSplash' is not declared as a pointer. Note the compiler complains it cannot convert the TApplication pointer to 'TfrmSplash' instead of to 'TfrmSplash *' -- P Back to top Bono Guest Posted: Mon Mar 13, 2006 9:03 am    Post subject: Re: splahs screen Quote: Did you #include TfrmSplash's header file so that WinMain() knows what the constructor actually looks like? Oooooooooops... Thanks a lot!! Now it's working fine!! Back to top Peter Guest Posted: Sat Mar 25, 2006 5:03 pm    Post subject: Re: splahs screen Thanks for the Q and A, I'm using this information as well. I created a small form (borderstyle bsNone) with a TImage on it (AlClient aligned) and loaded a small jpg file during design time. What I'm seeing is that first a blank form is shown and next the real image inside. So there is a small delay in painting the image (I suppose ?). Any idea how I can avoid this delay ? E.g. can I do something before I call ->Show() for instance ? Q2. the image is loaded at design time, so I can be sure it's in the exe's resources ... right ? I removed the image as a test and all appeared to work normally, but just making sure. Back to top Hans Galema Guest Posted: Sat Mar 25, 2006 7:03 pm    Post subject: Re: splahs screen Peter wrote: Quote: What I'm seeing is that first a blank form is shown and next the real image inside. Hmm. I do never see the image. But. Put a TTimer on your splashform. Enabled true. Interval 2000; In the TTimer eventhandler: void __fastcall TForm2::Timer1Timer(TObject *Sender) { ModalResult = mrOk; } Instead of Form->show(); Sleep(2000); use only; Form->ShowModal(); Hans. Back to top Hans Galema Guest Posted: Sat Mar 25, 2006 8:03 pm    Post subject: Re: splahs screen Don't forget to set Visible of the splashform to false during designtime. Hans. Back to top Hans Galema Guest Posted: Sat Mar 25, 2006 8:03 pm    Post subject: Re: splahs screen Hans Galema wrote: Alternative if you want the splaschform visible together with the mailform: Make WindowStyle of the splashform fsStayOnTop. Quote: Put a TTimer on your splashform. Enabled true. Interval 2000; In the TTimer eventhandler: void __fastcall TForm2::Timer1Timer(TObject *Sender) { Close(); } void __fastcall TForm2::FormClose(TObject *Sender, TCloseAction &Action) { Action = caFree; } Quote: Instead of Form->show(); Sleep(2000); delete Form; use only: Form->Show(); Hans. Back to top Remy Lebeau (TeamB) Guest Posted: Sun Mar 26, 2006 10:03 pm    Post subject: Re: splahs screen "Peter" <Will_Bounce_So_Use_My_First_Name@Smart-Projects.net> wrote in message news:44257195 (AT) newsgroups (DOT) borland.com... Quote: What I'm seeing is that first a blank form is shown and next the real image inside. So there is a small delay in painting the image (I suppose ?). Any idea how I can avoid this delay ? E.g. can I do something before I call ->Show() for instance ? Make sure that you are calling Update() immediately after Show(), ie: SplashForm = new TSplashForm(Application); SplashForm->Show(); SplashForm->Update(); // <-- here // do something ... delete SplashForm; Quote: the image is loaded at design time, so I can be sure it's in the exe's resources ... right ? It is stored as a binary stream embedded inside of the TForm's DFM resource. The image is not its own resource. Gambit Back to top Peter Guest Posted: Thu Mar 30, 2006 5:03 pm    Post subject: Re: splahs screen I solved it by calling Application->ProcessMessages(); right after SplashForm->Show(); Maybe it's better to call ->Update() ? (not tested) Back to top Peter Guest Posted: Thu Mar 30, 2006 6:03 pm    Post subject: Re: splahs screen Quote: Don't forget to set Visible of the splashform to false during designtime. Ah ... I don't think I do that (have to check) maybe that had an impact as well. 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