BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Displaying a form without parent          BorlandTalk.com Forum Index -> Delphi VCL Components Using View previous topic :: View next topic   Author Message Brian . Guest Posted: Thu Oct 23, 2003 1:37 pm    Post subject: Displaying a form without parent hi, i've created a custom message box for my project. then i've called it as below: with TMyMsgBox.Create(nil) do begin try // Set some settings ShowModal(); finally Free(); end; end; that's ok. but i want to get the same result as this message box command: MessageBox(0, '...', '...', MB_ICONSTOP); what i want is that TMyMsgBox should be displayed without any parents as same as the above message box. as you see i don't set its parent in its constructor (it is set to nil), but it seems that its parent is already set to application! also please note that its border style is set to bsDialog. will it cause any changes? how can i simulate the above MessageBox? thanks for your replies, Brian Back to top Peter Below (TeamB) Guest Posted: Thu Oct 23, 2003 7:50 pm    Post subject: Re: Displaying a form without parent In article <3f97d987$1 (AT) newsgroups (DOT) borland.com>, wrote: Quote: i've created a custom message box for my project. then i've called it as below: with TMyMsgBox.Create(nil) do begin try // Set some settings ShowModal(); finally Free(); end; end; that's ok. but i want to get the same result as this message box command: MessageBox(0, '...', '...', MB_ICONSTOP); what i want is that TMyMsgBox should be displayed without any parents as same as the above message box. as you see i don't set its parent in its constructor (it is set to nil), but it seems that its parent is already set to application! You are confusing owner and parent. Or owner in the VCL sense with owner in the Windows API sense, which are not the same. What you need to do is to override the CreateParams method in your custom dialog class. procedure TMyMsgBox.CreateParams( var params: TCreateParams ); //override begin inherited; params.WndParent := GetDesktopWindow; end; The VCL sets params.WndParent to Application.Handle by default. -- Peter Below (TeamB) Use the newsgroup archives : http://www.mers.com/searchsite.html http://www.tamaracka.com/search.htm http://groups.google.com http://www.prolix.be Back to top Brian . Guest Posted: Thu Oct 23, 2003 9:20 pm    Post subject: Re: Displaying a form without parent "Peter Below (TeamB)" <100113.1101 (AT) compuXXserve (DOT) com> wrote: Quote: What you need to do is to override the CreateParams method in your custom dialog class. thanks, now the problem has been solved. but now i have two other questions: 1) as i said in my previous post, the dialog border is set to bsDialog. so after overriding the CreateParams method, whenever the dialog is displayed the taskbar button contains the application icon. how can i get rid of this behavior either by removing the icon or removing the taskbar button? by changing the border style to bsToolWindow, the problem will be solved but i want to use a dialog style border. 2) my application is a standard project, but because i want to simulate a service the application should not be listed in the Applications part of the task manager. everything is ok, but when the custom message box is displayed, the application will be listed there and won't be removed until it is stopped. please note that when i use MessageBox(0, ...) the above problem won't be raised any longer, so there is no problem related to the code that i've used for simulating a service. what should i do to change the behavior of the custom message box to the standard message box? rgrds, Brian Back to top Peter Below (TeamB) Guest Posted: Fri Oct 24, 2003 6:42 pm    Post subject: Re: Displaying a form without parent In article <3f984630$1 (AT) newsgroups (DOT) borland.com>, wrote: Quote: but now i have two other questions: 1) as i said in my previous post, the dialog border is set to bsDialog. so after overriding the CreateParams method, whenever the dialog is displayed the taskbar button contains the application icon. how can i get rid of this behavior either by removing the icon or removing the taskbar button? by changing the border style to bsToolWindow, the problem will be solved but i want to use a dialog style border. Windows shows a taskbar button if a window has the WS_EX_APPWINDOW extended window style (which yours does not have) or if a window has no API owner, which you wanted to have. You can try Params.Exstyle := Params.Exstyle OR WS_EX_TOOLWINDOW; but that probably has the same effect as setting the Borderstyle to bsToolWindow. If you load an icon into the forms Icon property it should display on the taskbar button, by the way. Quote: 2) my application is a standard project, but because i want to simulate a service the application should not be listed in the Applications part of the task manager. everything is ok, but when the custom message box is displayed, the application will be listed there and won't be removed until it is stopped. please note that when i use MessageBox(0, ...) the above problem won't be raised any longer, so there is no problem related to the code that i've used for simulating a service. what should i do to change the behavior of the custom message box to the standard message box? Mh, try to do a Params.Style := Params.Style OR WS_POPUP; in the CreateParams method. -- Peter Below (TeamB) Use the newsgroup archives : http://www.mers.com/searchsite.html http://www.tamaracka.com/search.htm http://groups.google.com http://www.prolix.be Back to top Brian . Guest Posted: Fri Oct 24, 2003 8:54 pm    Post subject: Re: Displaying a form without parent "Peter Below (TeamB)" <100113.1101 (AT) compuXXserve (DOT) com> wrote: Quote: If you load an icon into the forms Icon property it should display on the taskbar button, by the way. thanks, but please note that this way doesn't work for bsDialog i forced to change the border style to bsSingle. Quote: Mh, try to do a Params.Style := Params.Style OR WS_POPUP; no, it didn't work! let me tell a new aspect of my problem: when the custom message box is displayed, it will be listed in the task manager. so when the user clicks on endtask button, my application will be terminated too. but i don't want this behavior. in the other words, i want to display the custom msg box as a separate process (i'm not sure about that, but it may help me!) how can i do that? rgrds, Brian Back to top Peter Below (TeamB) Guest Posted: Sat Oct 25, 2003 9:41 am    Post subject: Re: Displaying a form without parent In article <3f99919c$1 (AT) newsgroups (DOT) borland.com>, wrote: Quote: when the custom message box is displayed, it will be listed in the task manager. so when the user clicks on endtask button, my application will be terminated too. but i don't want this behavior. in the other words, i want to display the custom msg box as a separate process (i'm not sure about that, but it may help me!) how can i do that? Just write a little Delphi app that shows its command-line in a message box and start it from your pseudo-service. Enclose the message you pass as parameter in double quotes. program ShowMessage; uses Windows; begin if ParamCount > 0 then MessageBox( 0, Pchar(Paramstr(1)), 'Danger, Will Robinson! Danger!', MF_OK or MF_ICONSTOP); end. Untested! -- Peter Below (TeamB) Use the newsgroup archives : http://www.mers.com/searchsite.html http://www.tamaracka.com/search.htm http://groups.google.com http://www.prolix.be Back to top Brian . Guest Posted: Sat Oct 25, 2003 11:03 am    Post subject: Re: Displaying a form without parent "Peter Below (TeamB)" <100113.1101 (AT) compuXXserve (DOT) com> wrote: Quote: in the other words, i want to display the custom msg box as a separate process (i'm not sure about that, but it may help me!) how can i do that? Just write a little Delphi app that shows its command-line in a message box and start it from your pseudo-service. Enclose the message you pass as parameter in double quotes. thanks, but i want to use a single executable file. is it possible to show the dialog as a separate process without the use of any external files? (APIs such as CreateProcess may be usefule here, but i've not used them yet) rgrds, Brian Back to top Peter Below (TeamB) Guest Posted: Sat Oct 25, 2003 3:50 pm    Post subject: Re: Displaying a form without parent In article <3f9a5866$1 (AT) newsgroups (DOT) borland.com>, wrote: Quote: thanks, but i want to use a single executable file. At some point you have to make a decision: do you want to get this to work or not? <g>. Quote: is it possible to show the dialog as a separate process without the use of any external files? This is a contradiction in terms. A separate process *is* a separate executable, or a second instance of your first executable. -- Peter Below (TeamB) Use the newsgroup archives : http://www.mers.com/searchsite.html http://www.tamaracka.com/search.htm http://groups.google.com http://www.prolix.be Back to top Brian . Guest Posted: Mon Oct 27, 2003 1:21 pm    Post subject: Re: Displaying a form without parent "Peter Below (TeamB)" <100113.1101 (AT) compuXXserve (DOT) com> wrote: Quote: thanks, but i want to use a single executable file. At some point you have to make a decision: do you want to get this to work or not? <g>. do you mean that i should add something about 300K to my project? <g> please don't loose the main point of my question. i really need the custom message box to work only in a single executable file not anything else. perhaps a new process is not what i need, so what should i do? thanks, Brian Back to top Peter Below (TeamB) Guest Posted: Mon Oct 27, 2003 6:45 pm    Post subject: Re: Displaying a form without parent In article <3f9d29d8$1 (AT) newsgroups (DOT) borland.com>, wrote: Quote: "Peter Below (TeamB)" <100113.1101 (AT) compuXXserve (DOT) com> wrote: thanks, but i want to use a single executable file. At some point you have to make a decision: do you want to get this to work or not? <g>. do you mean that i should add something about 300K to my project? <g Who is talking about 300K? The little applet i gave you will compile to less than 30KB of code. If you do not use forms and other VCL stuff Delphi can create quite tiny apps. Quote: please don't loose the main point of my question. i really need the custom message box to work only in a single executable file not anything else. perhaps a new process is not what i need, so what should i do? I don't know, you are fighting Windows here and in that situation my bet is on Windows, sorry everything you want to have without using a second process as auxillary. -- Peter Below (TeamB) Use the newsgroup archives : http://www.mers.com/searchsite.html http://www.tamaracka.com/search.htm http://groups.google.com http://www.prolix.be Back to top Brian . Guest Posted: Tue Oct 28, 2003 6:11 am    Post subject: Re: Displaying a form without parent "Peter Below (TeamB)" <100113.1101 (AT) compuXXserve (DOT) com> wrote: Quote: do you mean that i should add something about 300K to my project? <g Who is talking about 300K? The little applet i gave you will compile to less than 30KB of code. If you do not use forms and other VCL stuff Delphi can create quite tiny apps. as you remember, i wrote in my first post that i want to display a custom message box and i asked you about its border style. so i'ved used a form and some other standard components such as image, label and button. we all know that including forms to the uses clause of an app adds something about 300K to the exe file. if i was able to create an executable file that is less than 50K, as you said, then i had no problem with a new executable file. but in the current situation, using a new project just for displaying a custom dialog is not the best way. plz note that i don't like to use KOL to create smaller files, because in that case, some parts of the dialog won't have the system default appearance. also using APIs to do so, is really cumbersome and annoying. is there any other ways?! thanks, Brian Back to top Peter Below (TeamB) Guest Posted: Tue Oct 28, 2003 8:13 pm    Post subject: Re: Displaying a form without parent In article <3f9e16a5$1 (AT) newsgroups (DOT) borland.com>, wrote: Quote: as you remember, Newsgroup messages only go into short term memory and are then deleted, so in fact i didn't remember <g>. Quote: is there any other ways?! I don't think so. -- Peter Below (TeamB) Use the newsgroup archives : http://www.mers.com/searchsite.html http://www.tamaracka.com/search.htm http://groups.google.com http://www.prolix.be Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> Delphi VCL Components Using All times are GMT Page 1 of 1   Jump to: Select a forum C++ Builder Newsgroups----------------C++ BuilderC++ Builder (ActiveX)C++ Builder (Announcements)C++ Builder (Command Line Tools)C++ Builder DatabasesC++ Builder Databases (ADO)C++ Builder Databases (Desktop)C++ Builder Databases (InterBase Express)C++ Builder Databases (Multi-Tier)C++ Builder Databases (SQL Servers)C++ Builder (Graphics)C++ Builder (IDE)C++ Builder (Internet)C++ Builder (Internet Socket)C++ Builder (Internet Web)C++ Builder (Jobs)C++ Builder (Language)C++ Builder (Language C++)C++ Builder (Compatibility with MFC)C++ Builder (Native API)C++ Builder (Non-Technical)C++ Builder (Students)C++ Builder (Third Party Tools)C++ Builder (Upgrade)C++ Builder (VCL)C++ Builder (VCL Components Usage)C++ Builder (VCL Components Development)C++ Builder (VCL Usage)C++ Builder (WinAPI)C++ Builder Installation Delphi Newsgroups----------------Delphi (General)Delphi ActiveX Controls UsageDelphi ActiveX Controls DevelopmentDelphi As400Delphi DatabasesDelphi Databases (ADO)Delphi Databases (dbExpress)Delphi Databases (Desktop)Delphi Databases (InterBase Express)Delphi Databases (Multi-Tier)Delphi Databases (SQL Servers)Delphi DeploymentDelphi GraphicsDelphi IDEDelphi InternationalizationDelphi InternetDelphi Internet Isapi-WebBrokerDelphi Internet WebSnapDelphi Internet WinsockDelphi JobsDelphi Language BASMDelphi Language ObjectPascalDelphi Model Driven Architecture (General)Delphi Model Driven Architecture (Third Party)Delphi MultimediaDelphi Native APIDelphi Non-TechnicalDelphi ObjectPascalDelphi OLE AutomationDelphi OO designDelphi OpenToolsAPIDelphi Reporting-ChartingDelphi RTLDelphi StudentsDelphi TeamSourceDelphi Thirdparty ToolsDelphi Thirdparty Tools (General)Delphi Thirdparty Tools (IntraWeb)Delphi Thirdparty Tools (RaveReports)Delphi UpgradeDelphi VCLDelphi VCL ComponentsDelphi VCL Components UsingDelphi VCL Components WritingDelphi WebServices SOAPDelphi WinAPIDelphi XMLDelphi Installationcomp.lang.pascal.delphi.components.misccomp.lang.pascal.delphi.components.usagecomp.lang.pascal.delphi.components.writingcomp.lang.pascal.delphi.databasescomp.lang.pascal.delphi.misccomp.sources.delphi JBuilder Newsgroups----------------JBuilderJBuilder AnnouncementsJBuilder Applet IssuesJBuilder As400JBuilder CompilerJBuilder CORBA/RMIJBuilder DatabasesJBuilder DB SwingJBuilder DebuggerJBuilder DeploymentJBuilder DocumentationJBuilder EnterpriseJBuilder HandheldJBuilder IDEJBuilder JavaJBuilder JavaAPIJBuilder Java LanguageJBuilder Java SwingJBuilder Java BeansJBuilder Java Beans UsageJBuilder Java Beans DevelopmentJBuilder JBCLJBuilder JDataStoreJBuilder JobsJBuilder LinuxJBuilder MacintoshJBuilder & MobileSetJBuilder MultiLingual AppsJBuilder Non-TechnicalJBuilder OpenToolsJBuilder Servlets (JSP)JBuilder StudentsJBuilder Team DevelopmentJBuilder Thirdparty ToolsJBuilder UpgradeJBuilder Installation InterBase Newsgroups----------------InterBaseInterBase Bug DiscussionInterBase GeneralInterBase IBConsoleInterBase OpenSourceInterBase ReplicationInterBase SQLInterBase ThirdpartyInterBase Installation Miscellaneous Borland Newsgroups----------------AppCenterAppServerEnteraVisiBroker  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.