On Tue, May 4, 2010 at 4:46 PM, David Wilson <[email protected]> wrote:
> Hi > > I'm new to Pharo (although I was a Smalltalk programmer in the 90's), and > I'm trying to use FFI to access an MacOs system function: > > Hi and welcome! > apiKLGetKeyboardLayoutCount > < cdecl: ulong 'KLGetKeyboardLayoutCount' (void) module: 'keyboards'> > ^ self externalCallFailed. > > I get an error "'Unable to find function address'" which seems to say the > OS-module "keyboards" can't be found. > Exactly. That's the problem. > I can't figure out what the address should be. > The function is defined here: > http://developer.apple.com/legacy/mac/library/documentation/Carbon/Reference/KeyboardLayoutServices/Reference/reference.html > (yes, it's deprecated, I have a very old mac runnning 10.4). > > But you see the library in your computer, isn't it ? I mean, it is there, but FFI doesn't find it ? > I'm not sure if I'm using FFI correctly, do I have to somehow include the > external library in the Pharo VM? > No, you shouldn't need to do that. However, you can try to put them there just to see if that's the problem. I think that at some point (depends on an order) the library is searched in the same place where you are calling from. So, yes, do a test, but just a test. It should work without doing that. How did you install FFI ? Which Pharo VM and image versions are you using ? Can anyone help? > > I would like too, but I don't have such library. I developed a wrapper for a Clibrary called OpenDBX using FFI. In our website, some people experimented similar problems. Please take a look to the title "Problems with Mac OS:" of the following link: http://www.squeakdbx.org/Compiling%20and%20installing%20OpenDBX I also cc'ed people that can help you. Cheers Mariano I'm looked for FFI examples, but don't find anything helpful. > > David > > > _______________________________________________ > Pharo-users mailing list > [email protected] > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >
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