Thanks for the advice.  I am not sure I understand how to get the callback functions for pd to interface with the cocoa API, but I'll give a crack at it later tonight and see how far I get (first time doing anything in obj-c).  For me, I don't really care about elegance as much as that it will do everything that I want it to do (and fast).

Rich

On Mon, Dec 21, 2009 at 9:54 AM, IOhannes m zmoelnig <zmoelnig@iem.at> wrote:
Rich E wrote:
> Hi all,
>
> I have been thinking of how to use cocoa in a pd external and I could use
> some advice.  It has to be in Objective-C of course, and I see that gridflow
> uses cocoa a little (format/quartz.m). Still, I am not understanding how to
> combine the elements of a pd external (in C) with that of what I am finding
> in cocoa example applications (in objective-c).  Will I just write the
> entire external in objective-c, or is there some specific way to use obj-c
> syntax within a C source file?  Any tips or directs are thankfully welcomed.

you can mix C-code and ObjC-code just fine in your .m file (that is: you
can use C in ObjC; you cannot use ObjC in your C)

so basically you write everything in ObjC, but the callback-functions
for Pd (which are written in C)
i guess there are more elegant ways to do it, but this is how i would do it.

fgmasdr
IOhannes