http://dn.codegear.com/article/29460 2008-08-30T02:47:00-07:00 Danny Thorpe http://threads.codegear.com/threads/threads.exe/userall?commentid=33989 http://threads.codegear.com/threads/threads.exe/view?commentid=33989 2003-01-27T17:08:33-08:00 2003-01-27T17:08:33-08:00

re: Overview of the VCL for .NET

VCL for .NET components should be useable by other .NET development tools. This is hypothetical at the moment since that part of VCL for .NET has not yet been implemented.Non-visual components will have an easier time with interoperability than visual controls. Also, some Delphi language features (such as sets) will not be understood by other .NET tools, and will thus be tagged as "non-CLS compliant" by the compielr. This is fine - C# and VB have non-CLS corners, too. Example: CLS excludes unsigned integers from its list of supported types. Like Delphi for .NET, C# and VB can declare methods with unsigned integer parameters, but these methods may be rejected or ignored by other .NET tools because unsigned ints are non-CLS compliant.A .NET developer using any .NET language tool who wants to write components for use in other .NET tools will need to understand which features of their language/toolset are not useable by other .NET tools and provide equivalents through other methods in the component. For example, if a Delphi for .NET developer wants to use a Delphi set type as a parameter in a method declaration, he/she should consider providing an equivalent method that does not require Delphi-specific knowledge, perhaps by making that parameter a simple integer parameter. The same is true for C#, VB, Eiffel, Cobol, and any other .NET language tool.Sharing visual controls between different application frameworks is a bit more complicated, but not impossible. A worst case would be that controls of one framework would need to be wrapped with host sites that are compatible with the other framework. That's what ActiveX controls do in Delphi 7. We might be able to do better than that in .NET thanks to CLR metadata and runtime introspection.BTW, you can already drop existing VCL components and forms into .NET applications using the ActiveX technique - place your VCL component in an ActiveX wrapper, and import the ActiveX control into your .NET application. It's not elegant, but it works.-Danny Gintaras Pikelis http://threads.codegear.com/threads/threads.exe/userall?commentid=33970 http://threads.codegear.com/threads/threads.exe/view?commentid=33970 2003-01-22T14:44:26-08:00 2003-01-22T14:44:26-08:00

Overview of the VCL for .NET

HiAnd what is the future of VCL.NET components (3rd party) ? Any way to build components that can be used in other .NET tools like VB.NET ? Like we currently have ability to build ActiveX components.thanks Patrick Foley http://threads.codegear.com/threads/threads.exe/userall?commentid=33903 http://threads.codegear.com/threads/threads.exe/view?commentid=33903 2003-01-15T00:15:13-08:00 2003-01-15T00:15:13-08:00

Overview of the VCL for .NET

"From a native Delphi application, the whole of .NET is available via COM interop" excert from article. What I would like to have and use is the ability to access the whole of Delphi from say a MS excel's VBA IDE window or at least be able to stream a VCL component into a simple userform.-- Craven Weasel http://threads.codegear.com/threads/threads.exe/userall?commentid=33897 http://threads.codegear.com/threads/threads.exe/view?commentid=33897 2003-01-14T05:08:39-08:00 2003-01-14T05:08:39-08:00

Overview of the VCL for .NET

Is there a printer friendly version of this for Europeans? I think the article deserves a close look1 John Kaster http://threads.codegear.com/threads/threads.exe/userall?commentid=33892 http://threads.codegear.com/threads/threads.exe/view?commentid=33892 2003-01-13T15:03:26-08:00 2003-01-13T15:03:26-08:00

re: Overview of the VCL for .NET

The VCL for .NET does not support the .NET compact framework. Eugene Mayevski http://threads.codegear.com/threads/threads.exe/userall?commentid=33879 http://threads.codegear.com/threads/threads.exe/view?commentid=33879 2003-01-11T04:56:30-08:00 2003-01-11T04:56:30-08:00

Overview of the VCL for .NET

Hello!Can anybody please explain whether VC.NET supports .NET CF?Sincerely yours,Eugene Mayevski