Demonstrates how to hook methods with MSHookFunction.

MSHookFunction_example.xm

// Typical tweak

%hook UIView

- (UIColor *)backgroundColor {
    return [UIColor blackColor];
}

%end

// Hook using MSHookFunction

//   return type  method name      arguments ...
MSHook(UIColor *, backgroundColor, id self, SEL _cmd) {
    return [UIColor blackColor];
}

%ctor {
    void *backgroundColorImp = (void *)class_getMethodImplementation([UIView class], @selector(backgroundColor));
    MSHookFunction(backgroundColorImp, MSHake(backgroundColorImp));
}