On Tue, Jun 25, 2013 at 4:22 AM, Luís Oliveira loliveira@common-lisp.netwrote:
Hello Mirko,
On Tue, Jun 25, 2013 at 1:56 AM, Mirko Vukovic mirko.vukovic@gmail.com wrote:
I am trying to link to a VISA library (VISA is used to control data acquisition instruments), visa32.lib compiled for Windows. The library
is
shipped with Tektronix software.
I'm surprised loading it works. That sounds like a static library.
Using `nm' I did find: 00000000 I __imp__viOpenDefaultRM@4 00000000 T _viOpenDefaultRM@4
This looks like the stdcall calling convention. (See "Name-decoration convention" in < http://msdn.microsoft.com/en-us/library/zxk0tw93(v=vs.71).aspx%3E.) Passing ":convention :stdcall" to DEFCFUN should work.
As a side point, I'm not sure if cffi-libffi works with stdcall. I think I put the code in, but having nothing to test it on, I have no idea if it works. If you have some structures-by-value functions to call, it would be good to test it (but you'll have to do the debugging if it fails).
Liam