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Who Actually Builds COM Objects with VFP for the Web
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Information générale
Forum:
Visual FoxPro
Catégorie:
Autre
Divers
Thread ID:
00830260
Message ID:
00831956
Vues:
37
John,
I think WWC can work as a VFP mtdll, but, from everything I've read on it and seen, it's strongly advised that it not be used that way. I would estimate from 0 to less than 1% use it this way, but, I'm open to be corrected on this. The primary way WWC works is in 1 of 2 ways both using multiple .vfp. .EXE backends. The first uses a 'file-based' method which communicates with the .EXE backends by passing small text files from the web server(performance will suffer greatly on busy sites using this method). The second method uses COM to communicate between the web server and the .EXE backends(this is the preferred and more scalable method).DCOM must be used to set up the .VFP. .EXE COM servers...
>Claude,
>
>One implementation of WWC uses Exe's. The other implementation uses COM DLL's - and does not use DCOM. When you interact with a COM DLL via an ASP - DCOM is not involved.
>
>< JVP >
>
>>I believe the difference is that WWC uses DCOM and .EXEs and I think he's looking for the MS presribed way to do web apps with .vfp. which is with .vfp. Multi-threaded .dlls (mtdlls) which can be called from ASP, ASP.NET and web services.
>>
>>>Rodman,
>>>
>>>Any particular reason why you are limiting this to "pure" COM implementation. AFAIK, Rick's framework supports COM and I am not aware that it is any "less pure" than not using it.
>>>
>>>FWIW, this is an interesting discussion. IMO, approx 1% of all active VFP developers have or still does actively write VFP Components. This number excludes those who dabble and play with the technology on an academic level.
>>>
>>>For the most part, I think you are going to find that private sites will be your most likely candidates. Companies that invest large sums of money, far more often than not - will use somethign else - whether it be Java, .NET, etc.
>>>
>>>< JVP >
>>>>I am curious,
>>>>
>>>>Has anyone here actually used VFP to build a MTDLL and hosted it on their web site.
>>>>
>>>>If so can you tell me what the site does and point me at the site.
>>>>
>>>>I want pure COM architectures not a west wind hosted site. I know Ricks's stuff works fine for this I just want to see a real site with a VFP-COM object called from ASP or ASP.NET (or some other technology capable of calling COM objects)
>>>>
>>>>
>>>>Rodman
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