[iPhone] Calling Objective-C function from a standard-C function

Question

How can I call an Objective-C function from a standard-C function?
I can call standard-C functions from an Objective-C functions but I can't do the inverse, how can I solve the problem of the *error: 'self' undeclared* ?
Here below is the example code:
- (void)animateView: (UIImage *)image fromPosition:(CGPoint) location1 toPosition:(CGPoint) location2
- (void) touchesEnded:(NSSet*)touches withEvent:(UIEvent*)event
[self animateView:newImage fromPosition:location1 toPosition:location2];
void dessineItemesAnim(int iteme, int final)
[self animateView:newImage1 fromPosition:location1 toPosition:location2];
*error: 'self' undeclared (first use in this function)*
}

Answer 1

Either add another parameter that contains a reference to the instance you are trying to call (just like many of the various API functions that use a 'C' language callback offer a 'user data ' parameter that can be used for this purpose) or create a global variable reference to the instance.
Once you have the instance reference, then you can use it in the same way that you would from within an obj-c function.
Of course, all of this assumes that you are using the standard GCC compiler that is told that your source is objective-c.
Susan