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We have a large Delphi 2007 VCL project that uses things like DBXpress, Report Builder, DevExpress and TMS components (both visual and non-visual) etc. For reasons I won't bore you with, the company would like to start adding new modules to the program using .Net (via C# in particular).

Rewriting from scratch isn't an option and given the heavy use of Report Builder and various other bits of Delphi-specific 3rd party code, I suspect that using something like TurnSharp to regenerate a C# project wouldn't work well either.

Ideally we want to keep our Win32 VCL Delphi code but add new modules (plug-ins, sections of contained functionality like wizards etc) via C#.

So we're considering RemObjects' Hydra, and in the next few weeks will probably have a go at evaluating it on a smaller-but-representative project first.

I wondered if anyone had experience of doing this kind of thing with Hydra?

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I've done a case study with a large company's very large project in a similar scenario, but it is not published yet so I can't give you any details. The were successful with it and quite happy. The also used Hydra as an alternative to P-Invoke for making native calls. unfortunately I can't speak form personal experience and answer the question. –  Jim McKeeth Jul 28 '11 at 19:47
    
@ Jim McKeeth - I am very interested in your case study. Is is published it? We are undergoing a similar scenario where we want to add C# plugins to a legacy Delphi project and would like to know how Hydra worked. –  RTP Coder Feb 12 at 15:17

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