/thirdparty/SPMediaKeyTap/SPInvocationGrabbing/gistfile4.m

 1@interface MyClass : NSObject
 2-(BOOL)areTheNewViewersGoneYet:(Duck*)duck;
 3@end
 4...
 5MyClass *myInstance = [[MyClass alloc] init];
 6id invocationGrabber = [[[SPInvocationGrabber alloc] initWithTarget:myInstance] autorelease];
 7
 8
 9[invocationGrabber areTheNewViewersGoneYet:[Duck yellowDuck]]; // line 9
10
11
12NSInvocation *invocationForAreTheNewViewersGoneYet = [invocationGrabber invocation];