Installing A Closet Bar On Slanted Wall Installing A Closet Organizer?

Installing a closet organizer? - installing a closet bar on slanted wall

We have recently moved and want to install closet organizers, I have taken from our old house. Recently I was on the ads on television, where glue is used to see things to screw up. It is a floor where) a basketball operations outside a house (instead of the bolts or screws, and clung to him.
When you connect the pieces of support in my office, in conjunction, you need only stick them right to the drywall? "The tail and bars / coins simply tear down the drywall?

Ideas?
Thank you!