Here are the classes, structs, unions and interfaces with brief descriptions:

hpp::manipulation::AxialHandle	Handle symmetric around its x-axis
hpp::manipulation::graph::Cache< C >	Cache mechanism that enable const-correctness of member functions
hpp::manipulation::Container< Element, Key >
hpp::manipulation::Device	Device with handles
hpp::manipulation::graph::dot::DrawingAttributes
hpp::manipulation::graph::Edge	Abstract class representing representing the link between two nodes
hpp::manipulation::graph::Graph	Description of the constraint graph
hpp::manipulation::graph::GraphComponent	Define common methods of the graph components
hpp::manipulation::GraphPathValidation	Path validation for a constraint graph
hpp::manipulation::GraphSteeringMethod
hpp::manipulation::Handle	Part of an object that is aimed at being grasped
hpp::manipulation::graph::Histogram
hpp::manipulation::graph::LeafBin	This class is used to do statistics on the roadmap
hpp::manipulation::graph::LeafHistogram
hpp::manipulation::graph::LevelSetEdge	Edge that find intersection of level set
hpp::manipulation::ManipulationPlanner
hpp::manipulation::graph::Node	State of an end-effector
hpp::manipulation::graph::NodeBin	This class is used to do statistics on the roadmap
hpp::manipulation::graph::NodeHistogram
hpp::manipulation::graph::NodeSelector	This class is used to get the state of a configuration
hpp::manipulation::Problem
hpp::manipulation::ProblemSolver
hpp::manipulation::Roadmap	Extension of hpp::core::Roadmap
hpp::manipulation::graph::dot::Tooltip
hpp::manipulation::graph::WaypointEdge	Edge with waypoint