BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Giving a form its own taskbar button          BorlandTalk.com Forum Index -> C++ Builder (VCL Components Usage) View previous topic :: View next topic   Author Message Simon Elliott Guest Posted: Fri May 27, 2005 10:01 am    Post subject: Giving a form its own taskbar button I have a BCB3 app which spawns a non-modal subform. I'd like the subform to have its own taskbar button, in addition to the taskbar button for the main app. How do I do this? -- Simon Elliott http://www.ctsn.co.uk Back to top JD Guest Posted: Fri May 27, 2005 10:30 am    Post subject: Re: Giving a form its own taskbar button "Simon Elliott" <Simon at ctsn.co.uk> wrote: Quote: I have a BCB3 app which spawns a non-modal subform. I'd like the subform to have its own taskbar button, in addition to the taskbar button for the main app. How do I do this? Override the form's CreateParams method so that you can apply the WS_EX_APPWINDOW flag to the form's ExStyle. void __fastcall TForm2::CreateParams( TCreateParams &Params ) { TForm::CreateParams( Params ); Params.ExStyle |= WS_EX_APPWINDOW; Params.WndParent = ::GetDesktopWindow(); } ~ JD Back to top Simon Elliott Guest Posted: Fri May 27, 2005 10:53 am    Post subject: Re: Giving a form its own taskbar button On 27/05/2005, JD wrote: Quote: "Simon Elliott" <Simon at ctsn.co.uk> wrote: I have a BCB3 app which spawns a non-modal subform. I'd like the subform to have its own taskbar button, in addition to the taskbar button for the main app. How do I do this? Override the form's CreateParams method so that you can apply the WS_EX_APPWINDOW flag to the form's ExStyle. void __fastcall TForm2::CreateParams( TCreateParams &Params ) { TForm::CreateParams( Params ); Params.ExStyle |= WS_EX_APPWINDOW; Params.WndParent = ::GetDesktopWindow(); } Exellent, that all works fine. How would I go about displaying an icon and/or caption in the taskbar button? -- Simon Elliott http://www.ctsn.co.uk Back to top JD Guest Posted: Fri May 27, 2005 11:32 am    Post subject: Re: Giving a form its own taskbar button "Simon Elliott" <Simon at ctsn.co.uk> wrote: Quote: [...] How would I go about displaying an icon and/or caption in the taskbar button? Set the form's Icon and Caption properties and when you allocate the form, use NULL as the Owner. Since the form will have no Owner, you *must* explicitly delete the form or you'll have a leak. ~ JD Back to top Simon Elliott Guest Posted: Fri May 27, 2005 1:15 pm    Post subject: Re: Giving a form its own taskbar button On 27/05/2005, JD wrote: Quote: [...] How would I go about displaying an icon and/or caption in the taskbar button? Set the form's Icon and Caption properties and when you allocate the form, use NULL as the Owner. Since the form will have no Owner, you must explicitly delete the form or you'll have a leak. Is there any way to have a different icon and caption in the taskbar and on the form? -- Simon Elliott http://www.ctsn.co.uk Back to top JD Guest Posted: Fri May 27, 2005 1:25 pm    Post subject: Re: Giving a form its own taskbar button "Simon Elliott" <Simon at ctsn.co.uk> wrote: Quote: Is there any way to have a different icon and caption in the taskbar and on the form? I doubt it. The definative answer would be found in how Windows determines what to use. ~ JD Back to top Simon Elliott Guest Posted: Fri May 27, 2005 1:41 pm    Post subject: Re: Giving a form its own taskbar button On 27/05/2005, JD wrote: Quote: Is there any way to have a different icon and caption in the taskbar and on the form? I doubt it. The definative answer would be found in how Windows determines what to use. OK. Thanks for your help on this. I'll see if anyone in the API newsgroup can advise on the icon & caption issue. -- Simon Elliott http://www.ctsn.co.uk Back to top Remy Lebeau (TeamB) Guest Posted: Fri May 27, 2005 5:53 pm    Post subject: Re: Giving a form its own taskbar button "JD" <nospam (AT) nospam (DOT) com> wrote Quote: when you allocate the form, use NULL as the Owner. That is not necessary. Gambit Back to top JD Guest Posted: Sat May 28, 2005 12:28 am    Post subject: Re: Giving a form its own taskbar button "Remy Lebeau (TeamB)" <no.spam (AT) no (DOT) spam.com> wrote: Quote: "JD" <nospam (AT) nospam (DOT) com> wrote in message news:4297055c$1 (AT) newsgroups (DOT) borland.com... when you allocate the form, use NULL as the Owner. That is not necessary. I didn't think so but I found it as a suggestion by Peter Below and thought it worth while to mention. ~ JD Back to top Remy Lebeau (TeamB) Guest Posted: Sat May 28, 2005 3:13 am    Post subject: Re: Giving a form its own taskbar button "JD" <nospam (AT) nospam (DOT) com> wrote Quote: I didn't think so but I found it as a suggestion by Peter Below and thought it worth while to mention. Ownership only refers to memory management, nothing else. It has nothing to do with a form's ability to have a taskbar button. 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