You are not calling R, but rproxy.dll, part of a (D)COM interface. Try calling R itself (via R.dll).
On Fri, 9 Dec 2005, Simon Knapp wrote: > Hi all, > > I am trying to make calls to R from an MFC application running on XP > and am having problems blocking the application while the call > executes. > > I have tried the following approaches to using R from the application > (note that I set a wait cursor while R is executing). > > 1) call rcmd in BATCH mode using system(). This works well, except > that I get the cmd window popping up... which makes the app look > pretty tacky. > > 2) use the com interface. This works OK... sometimes. When I call > R_Proxy_evaluate_noreturn by pressing OK in the dialog that starts the > execution, if the cursor happens to be over the applications window > when the dialog disappears, then I get my wait cursor and the > application blocks. If the cursor is not over the applications window, > then I don't get the wait cursor and the application seems to block > after the first mouse click within the applications window. > > 3) use Rproxy.dll directly. The application does not block and I don't > get a wait cursor at all. > > 4) integrate the code used by Rproxy into my application (in > verbatim). The application does not block and I don't get a wait > cursor at all. > > The things I have read about DLLs make statements like "a dll is just > code and data loaded into your applications process", which I have > taken to imply that the application should block while R is executing. > This also seems to be implied by the discussion around the rtest > example r-ext.pdf. > > Can someone offer any advice on whether there is some way to make my > application block when configuring R? If not, is there a simple way to > make the app block (I have never coded using threads before, am a > relative newbie to MFC and am struggling to figure out how I would to > block otherwise). > > Help would be greatly appreciated, > Simon Knapp > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > > -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
