R help - Jun 2004 - dll file missing?

Hi,
 
I am trying to "do" a dyn.load(), but I get the following error...
 
> dyn.load("fileGT.dll")
Error in dyn.load(x, as.logical(local), as.logical(now)) : 
        unable to load shared library "C:/R_Files/fileGT.dll":
  LoadLibrary failure:  The specified module could not be found.
 
It states it can't find the dll but it is in that directory. I have checked
the file properties and the read and execute checkboxes are ticked.
 
My C++ code uses a 3rd party library. I have linked it using the g++
commands and it compiles fine. Could this be the source of my problems?????
 
 
Does anyone know the reason for this?
 
Any help is appreciated,
 
Sam.
 
Samuel Edward Kemp BSc (Hons) Cardiff
Neural & Evolutionary Computation Research Group
School of Computing
University of Glamorgan
CF37 1DL
Tel: (+44)443 483612
Fax:(+44)443 482715
e-mail: sekemp@glam.ac.uk <mailto:sekemp@glam.ac.uk> 
 

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On Fri, 11 Jun 2004, Kemp S E (Comp) wrote:
> Hi,
>  
> I am trying to "do" a dyn.load(), but I get the following
error...
>  
> > dyn.load("fileGT.dll")
> Error in dyn.load(x, as.logical(local), as.logical(now)) : 
>         unable to load shared library "C:/R_Files/fileGT.dll":
>   LoadLibrary failure:  The specified module could not be found.
>  
> It states it can't find the dll but it is in that directory. 
Actually, it doesn't say that.  It says a specified module could not be
found, without specifying which.  Windows could be more helpful in its
error messages (which version of Windows is this?).
> I have checked
> the file properties and the read and execute checkboxes are ticked.
>  
> My C++ code uses a 3rd party library. I have linked it using the g++
> commands and it compiles fine. Could this be the source of my problems?????
It could well be.  Any DLLs that fileGT.dll depends on must be in the same
directory or in your PATH.  Those DLLs are modules specified by
fileGT.dll, hence the confusing error message.

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
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