# Box2D/Box2D/Dynamics/b2ContactManager.cpp File Reference

`#include <Box2D/Dynamics/b2ContactManager.h>`
`#include <Box2D/Dynamics/b2Body.h>`
`#include <Box2D/Dynamics/b2Fixture.h>`
`#include <Box2D/Dynamics/b2WorldCallbacks.h>`
`#include <Box2D/Dynamics/Contacts/b2Contact.h>`

## Variables
b2ContactFilter | b2_defaultFilter
b2ContactListener | b2_defaultListener

## Variable Documentation

b2ContactFilter b2_defaultFilter

b2ContactListener b2_defaultListener