[R] Wrapping R for windows in a com dll

Don Wingate Don.Wingate at intellichem.com
Wed Sep 27 03:42:43 CEST 2000

Dear R Community,

I am trying to create a com dll wrapper for R in a mannor similiar to the R
Com Server by Thomas Baier except that I would much rather avoid using the
proxy dll ("Rproxy.dll"). Perhaps I don't really understand the reason for
going throug the proxy in the first place, but it seems like an unnecessary
indirection for an application which is not intended to use DCom. To this
end I have been trying to use the functions declared in rproxy_impl.h (I've
tried rtest.c as well, aka the readme file in the front-ends directory). It
is my understanding that these functions provide access to interface
functions contained in R.dll. However, there does not seem to be an R.exp or
R.lib file in the source code or R binary distribution.

I work in the VC++ ide and am building a VC++ project. As I am sorely
unpracticed in the use of makefiles and the command line for compiling, I
have been avoiding the daunting task of compiling the R dll itself, if in
fact that would be at all helpful. (From what I have been able to gather, it
is either not possible or a big problem to compile R inside the VC++ ide, is
this correct??)

My questions are as follows:

1) Is it possible to build a project containing calls to functions contained
in rtest.c and/or rproxy_impl.h from the VC++ ide?

2) Are the compiled R.exp and/or R.lib files available?

3) If these files are not available (or even if they are) is there another
way to access R.dll which I have not tried, other than through RProxy.dll?

4) Is there any documentation on the interface exposed by R.dll and its

Thankyou in advance,

Don Wingate.

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