On 3 Dec 2010, at 18:30, Germán Arias wrote: > Well, in the GNUstep documentation I don't see NSInvocationOperation > class. Then, I suppose this class don't exist on GNUstep. > > On jue, 2010-12-02 at 21:36 -0800, aphuk wrote: >> Hi, I am new to Objective-C and GNUstep so my question might be a little >> basic but please help me out since I am stuck. >> >> We are trying to create an instance of a NSInvocationOperation and put it in >> the NSOperationQueue as given below >> >> NSInvocationOperation* putOp = [[[NSInvocationOperation alloc] >> initWithTarget:self selector:@selector(put) >> object:[NSNumber >> numberWithInt:5]] autorelease]; >> >> But on compilation, I get the below error : >> >> NSInvocationOperation undeclared (first use in this function) >> >> What am I missing here?
Yes, this is a non-existent class. Searching the web for it, it seems it's a class from the iPhone operating system. Looking at the documentation, it seems quite simple though ... just a simple wrapper to run an invocation as an NSOperation ... s/he could get a similar effect easily by writing a subclass of NSOperation. _______________________________________________ Help-gnustep mailing list Help-gnustep@gnu.org http://lists.gnu.org/mailman/listinfo/help-gnustep