The MagickWand interface is a new high-level C API interface to ImageMagick core methods. We discourage the use of the core methods and encourage the use of this API instead. Post MagickWand questions, bug reports, and suggestions to this forum.
Note that the first one has to be cast to double (or written as 120.0) so that the division isn't done as integers which would result in zero.
Hello @el_supremo, it's not working. It gives me a black image.
After some digging I found that I need to divide first argument(Hue) by 360. I've got an idea from second and third parameters as you have divided those parameters by 100, I thought the first one(Hue) would be divided by 360 and yes the solution works. Thank you @el_supremo.
So the method looks like this.