BorlandTalk.com Borland discussion newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  Custom Form Editor - Would a Fake Deisig time Form Work ?          BorlandTalk.com Forum Index -> Delphi OpenToolsAPI View previous topic :: View next topic   Author Message Blackpaw Guest Posted: Sat Nov 18, 2006 4:59 am    Post subject: Custom Form Editor - Would a Fake Deisig time Form Work ? As stated earlier I've implemented a CustomFormDesigner which registers and display ok for a TBWForm descended from TComponent. However the ide won't create any variable declarations when I drop components on it. I was wondering if I separated my runtime and design time units and had my designtime TBWForm actually descend from TWinControl and my runtime descend from TComponent wether the'd be any issues with that. The Design time form would get the TWinControl designer which is OK for my purposes and the runtime would be the real implementation. Does anyone see a problem with that ? Thanks - Lindsay Back to top Frenk Guest Posted: Fri Dec 01, 2006 4:03 am    Post subject: Re: Custom Form Editor - Would a Fake Deisig time Form Work Form designer is just a design time representatnion of your component. So this has nothing to do with your runtime component which you are creating. A good example of such a work is DevEX Web development for D5-D7. As you maybe noticed allready, IW (TIWForm) is descendant from TWinControl. I think that the main reason is "hard to implement" own designer (with all sreaminc and VFI capabilities) from scratch. (This is even harder because of no documentaion at all.) In BDS (D8 - D10) you will have even more problems, because there is no documentanion, how to "parent" your designer into IDE surface (you will get your form floating and endless loop of strange AVs). (Maybe that is a reason that DevEx web tools also have no support for BDS?) Regards, Frenk BTW, your idea is a good one... "Blackpaw" <lindsay.mathieson (AT) gmail (DOT) com> wrote in message news:1163804350.983763.246040 (AT) f16g2000cwb (DOT) googlegroups.com... Quote: As stated earlier I've implemented a CustomFormDesigner which registers and display ok for a TBWForm descended from TComponent. However the ide won't create any variable declarations when I drop components on it. I was wondering if I separated my runtime and design time units and had my designtime TBWForm actually descend from TWinControl and my runtime descend from TComponent wether the'd be any issues with that. The Design time form would get the TWinControl designer which is OK for my purposes and the runtime would be the real implementation. Does anyone see a problem with that ? Thanks - Lindsay Back to top Blackpaw Guest Posted: Fri Dec 01, 2006 9:12 am    Post subject: Re: Custom Form Editor - Would a Fake Deisig time Form Work Thanks Frenk, I was wondering how a true custom ide designer would work in D8+ Not well it would seem. I think I will definitely experiment with the fake designer form approach. Its a shame Borland have made extending this part of the ide so difficult, there's room for some innovative products here if it wasn't so unreliable. Its pushing me to .NET, DevStudio and SharpDevelop. Cheers - Blackpaw Frenk wrote: Quote: Form designer is just a design time representatnion of your component. So this has nothing to do with your runtime component which you are creating. A good example of such a work is DevEX Web development for D5-D7. As you maybe noticed allready, IW (TIWForm) is descendant from TWinControl. I think that the main reason is "hard to implement" own designer (with all sreaminc and VFI capabilities) from scratch. (This is even harder because of no documentaion at all.) In BDS (D8 - D10) you will have even more problems, because there is no documentanion, how to "parent" your designer into IDE surface (you will get your form floating and endless loop of strange AVs). (Maybe that is a reason that DevEx web tools also have no support for BDS?) Regards, Frenk BTW, your idea is a good one... Back to top Frenk Guest Posted: Fri Dec 01, 2006 9:12 am    Post subject: Re: Custom Form Editor - Would a Fake Deisig time Form Work Quote: Its a shame Borland have made extending this part of the ide so difficult, there's room for some innovative products here if it wasn't so unreliable. Its pushing me to .NET, DevStudio and SharpDevelop. I believe that there is the same story (or even harder because you are forced to use .NET designer)... Why don't you use a TWinControl descendant? Back to top Blackpaw Guest Posted: Fri Dec 01, 2006 4:36 pm    Post subject: Re: Custom Form Editor - Would a Fake Deisig time Form Work Yah, the Visual Studio designer is undocumented too, though the SharpDevelop folks have done a good job of implementing it. I was hoping to avoid using TWinControl because the framework will be invoked from multiple threads from either a service or as a ISAPI DLL, window handles in that case will be fragile and a waste of resources, plus there's a awful lot of overhead and functionality that relies on a functioning message loop in the TWinControl Hierarchy. Thanks - Lindsay Frenk wrote: Quote: Its a shame Borland have made extending this part of the ide so difficult, there's room for some innovative products here if it wasn't so unreliable. Its pushing me to .NET, DevStudio and SharpDevelop. I believe that there is the same story (or even harder because you are forced to use .NET designer)... Why don't you use a TWinControl descendant? 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