BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Difficult VCL Modification problem in Delphi 4          BorlandTalk.com Forum Index -> Delphi VCL Components Writing View previous topic :: View next topic   Author Message Jill Wyrtham Guest Posted: Wed Nov 19, 2003 5:47 am    Post subject: Difficult VCL Modification problem in Delphi 4 Hello all! I need to do something truly weird, I need to override how a form is painted in the IDE at design time. The code I need to change is in the Forms.pas unit, in the PaintWindow procedure. It checks for a valid FDesigner and does a grid only display. I need it to draw a bitmap as well as do the grid (just drawing a simple already loaded bitmap on the form background). My problem is while I can override the method for runtime just fine, the IDE ignores me at design time. I've tried rebuilding Forms.pas in the "patched" folder like the FAQ suggests, but still nothing. I would deeply appreciate any help here, this is driving me crazy. Laura (using a friend's account) Back to top Ryan Mills Guest Posted: Wed Nov 19, 2003 2:18 pm    Post subject: Re: Difficult VCL Modification problem in Delphi 4 You will need to look up information on the csDesigning value of the ComponentState property. Basically if you pay attention to that csDesigning and do something specifically for that state you will be be able to interact with the form/component at designtime. Be aware that what your trying to do is somewhat advanced. If you've never done anything like this before (or even if you have) your going to be restarting Delphi alot. HTH, Ryan. On Tue, 18 Nov 2003 22:47:07 -0700, "Jill Wyrtham" <kappainfometrics5 (AT) comcast (DOT) net> wrote: Quote: Hello all! I need to do something truly weird, I need to override how a form is painted in the IDE at design time. The code I need to change is in the Forms.pas unit, in the PaintWindow procedure. It checks for a valid FDesigner and does a grid only display. I need it to draw a bitmap as well as do the grid (just drawing a simple already loaded bitmap on the form background). My problem is while I can override the method for runtime just fine, the IDE ignores me at design time. I've tried rebuilding Forms.pas in the "patched" folder like the FAQ suggests, but still nothing. I would deeply appreciate any help here, this is driving me crazy. Laura (using a friend's account) Back to top Jill Wyrtham Guest Posted: Wed Nov 19, 2003 4:44 pm    Post subject: Re: Difficult VCL Modification problem in Delphi 4 "Ryan Mills" <rmcontrols (AT) mills-enterprise (DOT) ca> wrote Quote: You will need to look up information on the csDesigning value of the ComponentState property. Basically if you pay attention to that csDesigning and do something specifically for that state you will be be able to interact with the form/component at designtime. The problem isn't that (I already knew about it, but thanks! ) but rather how to update the VCL runtime. I can't seem to get the changed forms.dcu into the VCL40 package. Laura Back to top William Wong Guest Posted: Thu Nov 20, 2003 2:18 am    Post subject: Re: Difficult VCL Modification problem in Delphi 4 I am afraid you can't rebuild the VCL package because Borland do not supply the .dpk file... Back to top Roberto Scardovi Guest Posted: Thu Nov 20, 2003 8:10 am    Post subject: Re: Difficult VCL Modification problem in Delphi 4 If I understand correctly you do need your modified forms.dcu available at runtime. To achieve this you need simply to compile the modified forms.pas and overwrite the original $DELPHI32libforms.dcu with the modified one. To get the modified forms.dcu - open a new project - save it in a given directory - copy there the modified forms.pas - compile the project you should get forms.dcu. Things get more complicated if you need applications be compiled with dynamic link to runtime packages "project->options->packages->build with runtime packages". In this case you need to distribute a modified version of vcl40.bpl containing the modified forms.dcu. In this case you may need a tool to manage DLL modules ... Roberto "Jill Wyrtham" <kappainfometrics5 (AT) comcast (DOT) net> wrote Quote: "Ryan Mills" <rmcontrols (AT) mills-enterprise (DOT) ca> wrote in message news:rpumrvkdgaksou356b3gnjnrm18vcg6fv5 (AT) 4ax (DOT) com... You will need to look up information on the csDesigning value of the ComponentState property. Basically if you pay attention to that csDesigning and do something specifically for that state you will be be able to interact with the form/component at designtime. The problem isn't that (I already knew about it, but thanks! ) but rather how to update the VCL runtime. I can't seem to get the changed forms.dcu into the VCL40 package. Laura Back to top Roberto Scardovi Guest Posted: Thu Nov 20, 2003 8:10 am    Post subject: Re: Difficult VCL Modification problem in Delphi 4 If I understand correctly you do need your modified forms.dcu available at runtime. To achieve this you need simply to compile the modified forms.pas and overwrite the original $DELPHI32libforms.dcu with the modified one. To get the modified forms.dcu - open a new project - save it in a given directory - copy there the modified forms.pas - compile the project you should get forms.dcu. Things get more complicated if you need applications be compiled with dynamic link to runtime packages "project->options->packages->build with runtime packages". In this case you need to distribute a modified version of vcl40.bpl containing the modified forms.dcu. In this case you may need a tool to manage DLL modules ... Roberto www.erzensoft.com "Jill Wyrtham" <kappainfometrics5 (AT) comcast (DOT) net> wrote Quote: "Ryan Mills" <rmcontrols (AT) mills-enterprise (DOT) ca> wrote in message news:rpumrvkdgaksou356b3gnjnrm18vcg6fv5 (AT) 4ax (DOT) com... You will need to look up information on the csDesigning value of the ComponentState property. Basically if you pay attention to that csDesigning and do something specifically for that state you will be be able to interact with the form/component at designtime. The problem isn't that (I already knew about it, but thanks! ) but rather how to update the VCL runtime. I can't seem to get the changed forms.dcu into the VCL40 package. Laura 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 Writing 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.