BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Delphi 9 feature Goto page 1, 2, 3  Next          BorlandTalk.com Forum Index -> Delphi Non-Technical View previous topic :: View next topic   Author Message Max Guest Posted: Wed Sep 17, 2003 4:33 pm    Post subject: Delphi 9 feature A wonderful Delphi 9 feature! Isn't it? procedure MacroSample(APers1, APers2: TPerson); macro MyMacro(x) APers1.##x := APers2.##x; end; begin MyMacro(Name); MyMacro(Firstname); MyMacro(Age); MyMacro(Children); end; Back to top Anders Ohlsson (Borland) Guest Posted: Wed Sep 17, 2003 5:31 pm    Post subject: Re: Delphi 9 feature Yuck! Quote: macro MyMacro(x) APers1.##x := APers2.##x; end; -- BorCon 2003 - http://www.borland.com/conf2003 - The Greatest Event Ever Anders Ohlsson - Borland Developer Relations - http://bdn.borland.com/ Borland Software Corporation - http://www.borland.com/ - Excellence Endures Enabling our customers to move into the future without abandoning their past http://homepages.borland.com/aohlsson/disclaimer_ani.gif Back to top Alessandro Federici Guest Posted: Wed Sep 17, 2003 6:13 pm    Post subject: Re: Delphi 9 feature "Max" <nospam (AT) nospam (DOT) com> wrote Quote: A wonderful Delphi 9 feature! Isn't it? Useless since it's already doable in a much better way through RTTI. Back to top Captain Jake Guest Posted: Wed Sep 17, 2003 6:21 pm    Post subject: Re: Delphi 9 feature In borland.public.delphi.non-technical, Alessandro Federici <nomore (AT) spam (DOT) forme> wrote in message <3f68a2fa$1 (AT) newsgroups (DOT) borland.com>... Quote: "Max" <nospam (AT) nospam (DOT) com> wrote in message news:3f688cd1 (AT) newsgroups (DOT) borland.com... A wonderful Delphi 9 feature! Isn't it? Useless since it's already doable in a much better way through RTTI. Oh puh-LEEZE. RTTI in Delphi only works on PUBLISHED members (and it is messier than using macros!), but when writing assignment functions, you often want to assign public, protected or even private members. Back to top John Kaster (Borland) Guest Posted: Wed Sep 17, 2003 7:17 pm    Post subject: Re: Delphi 9 feature Captain Jake wrote: Quote: RTTI in Delphi only works on PUBLISHED members Incorrect. -- John Kaster, Borland Developer Relations, http://bdn.borland.com $1280/$50K: http://homepages.borland.com/jkaster/tnt/thanks.html Make a wish: http://qc.borland.com * Get source http://codecentral.borland.com Back to top Alessandro Federici Guest Posted: Wed Sep 17, 2003 7:22 pm    Post subject: Re: Delphi 9 feature "Captain Jake" <johnj[nospam]@comcast.net> wrote Quote: RTTI in Delphi only works on PUBLISHED members (and it is messier than using macros!) Which is all he's doing anyways so my example is pertinent. He's using a procedure and because of this only have access to public and published stuff (the protected, accessible from inside the same unit is a Delphi bug IMO so I won't cosider the case in which that procedure is implemented in the unit of TPerson <G>). Quote: but when writing assignment functions, you often want to assign public, protected or even private members. published are public, so that covers it. Protected or private you don't wanna set unless you don't care about breaking simple OO design rules. That is exactly what properties are for. -- Best regards, Alessandro Federici RemObjects Software, Inc. http://www.remobjects.com Back to top Dennis Landi Guest Posted: Wed Sep 17, 2003 7:29 pm    Post subject: Re: Delphi 9 feature "Captain Jake" <johnj[nospam]@comcast.net> wrote in message Quote: Oh puh-LEEZE. RTTI in Delphi only works on PUBLISHED members (and it is messier than using macros!), but when writing assignment functions, you often want to assign public, protected or even private members. Check out the {$M+} compiler directive and also from the Delphi Help: DevGuide: Creating Custom Components Storing and loading unpublished properties By default, only published properties are loaded and saved with a component. However, it is possible to load and save unpublished properties. This allows you to have persistent properties that do not appear in the Object Inspector. It also allows components to store and load property values that Delphi does not know how to read or write because the value of the property is too complex. For example, the TStrings object can't rely on Delphi's automatic behavior to store and load the strings it represents and must use the following mechanism. You can save unpublished properties by adding code that tells Delphi how to load and save your property's value. To write your own code to load and save properties, use the following steps: 1 Create methods to store and load the property value. 2 Override the DefineProperties method, passing those methods to a filer object. Back to top Captain Jake Guest Posted: Wed Sep 17, 2003 8:03 pm    Post subject: Re: Delphi 9 feature In borland.public.delphi.non-technical, "John Kaster (Borland)" <johnk (AT) borland (DOT) com> wrote in message <3f68b365$1 (AT) newsgroups (DOT) borland.com>... Quote: Captain Jake wrote: RTTI in Delphi only works on PUBLISHED members Incorrect. What? When did this change? Back to top Captain Jake Guest Posted: Wed Sep 17, 2003 8:09 pm    Post subject: Re: Delphi 9 feature In borland.public.delphi.non-technical, Alessandro Federici <nomore (AT) spam (DOT) forme> wrote in message <3f68b337$1 (AT) newsgroups (DOT) borland.com>... Quote: Protected or private you don't wanna set unless you don't care about breaking simple OO design rules. That is exactly what properties are for. Hmmm...I beg to differ. When I assign one object to another I am really just dealing with memory allocation issues. I want two copies of the same thing, but I don't want to worry about the first one being freed before I am done with the second. In this case I want ALL the state to cross over to the new object, but I don't necessarily want all those state variables exposed to *other* units. The way I view it, an assignment doesn't just clone the external interface but the current state of the object too. Back to top Rudy Velthuis (TeamB) Guest Posted: Wed Sep 17, 2003 8:12 pm    Post subject: Re: Delphi 9 feature Captain Jake wrote: Quote: In borland.public.delphi.non-technical, "John Kaster (Borland)" [email]johnk (AT) borland (DOT) com[/email]> wrote in message 3f68b365$1 (AT) newsgroups (DOT) borland.com>... >Captain Jake wrote: RTTI in Delphi only works on PUBLISHED members Incorrect. What? When did this change? It also works on many types, like Integer or records containing string or interfaces, etc. <g> -- Rudy Velthuis (TeamB) "I don't know anything about music. In my line you don't have to." - Elvis Presley (1935-1977) Back to top Captain Jake Guest Posted: Wed Sep 17, 2003 8:54 pm    Post subject: Re: Delphi 9 feature In borland.public.delphi.non-technical, "Yorai Aminov (TeamB)" <yaminov (AT) delete_shorterpath (DOT) com> wrote in message <c6lhmv8fkvfrrnua1et82qr0blrpqasgk2 (AT) 4ax (DOT) com>... Quote: What? When did this change? With SOAP. So then I have this ability in D6? Back to top Yorai Aminov (TeamB) Guest Posted: Wed Sep 17, 2003 9:40 pm    Post subject: Re: Delphi 9 feature On Wed, 17 Sep 2003 15:03:32 -0500, "Captain Jake" <johnj[nospam]@comcast.net> wrote: Quote: RTTI in Delphi only works on PUBLISHED members Incorrect. What? When did this change? With SOAP. --- Yorai Aminov (TeamB) http://develop.shorterpath.com/yorai (TeamB cannot answer questions received via email.) Back to top Captain Jake Guest Posted: Wed Sep 17, 2003 9:46 pm    Post subject: Re: Delphi 9 feature In borland.public.delphi.non-technical, "Yorai Aminov (TeamB)" <yaminov (AT) delete_shorterpath (DOT) com> wrote in message <a8ohmv4tmq0f8hffs69a5iueub0u2ko79v (AT) 4ax (DOT) com>... Quote: So then I have this ability in D6? I think so. It's not what you think, though - RTTI was extended to support interfaces. I thought interfaces had no private or protected members. Back to top Yorai Aminov (TeamB) Guest Posted: Wed Sep 17, 2003 10:33 pm    Post subject: Re: Delphi 9 feature On Wed, 17 Sep 2003 15:54:49 -0500, "Captain Jake" <johnj[nospam]@comcast.net> wrote: Quote: With SOAP. So then I have this ability in D6? I think so. It's not what you think, though - RTTI was extended to support interfaces. --- Yorai Aminov (TeamB) http://develop.shorterpath.com/yorai (TeamB cannot answer questions received via email.) Back to top Jim Cooper Guest Posted: Wed Sep 17, 2003 11:14 pm    Post subject: Re: Delphi 9 feature Quote: Protected or private you don't wanna set unless you don't care about breaking simple OO design rules. It doesn't in an Assign though, because the Assign method is part of the definition of the class. You're free to access private and protected things. Sometimes you have to access a private field in an assignment to you don't trigger a setter method. Quote: That is exactly what properties are for. Protected properties are useful things to have too - they aren't all public. Cheers, Jim Cooper ____________________________________________ Jim Cooper [email]jcooper (AT) tabdee (DOT) ltd.uk[/email] Tabdee Ltd http://www.tabdee.ltd.uk TurboSync - Connecting Delphi with your Palm ____________________________________________ Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         BorlandTalk.com Forum Index -> Delphi Non-Technical All times are GMT Goto page 1, 2, 3  Next Page 1 of 3   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.