Forum:Creature Swap vs. Compulsary Evacuation Device

Another duelist and I got confused by the effects here. When I wanted to Creature Swap my Yellow Gadget for his Blue-Eyes White Dragon, he used Compulsory Evacuation Device to return my Yellow Gadget to my hand.

I was wondering if Creature Swap still allows me to take his monster for my own, cause technically, Compulsory Evacuation Device does NOT NEGATE anything at all