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

AMBER_MD_DATA_REQUEST
amber_prmtop
amber_prmtop_section
amberaprepinfo
ambermprepinfo
amberrprepinfo
angle_index
angle_type
assembly
assignment
assn_brief
atom
atom_node
atommode
atype
autocorr
bend
bond
bond_type
bondset
boxinfo
charlist
chirality_description
coord_3D
coord_nD
coord_nDi
dockinfo
EE_TI_CHANGE_INFO
ensemble
ensemble_tree_index
ensindex
fileset
fileslurp	A structure for a function similar to the perl notion of "slurping" a file
gly_keysvals
intset
linedef
linefield
linetype
llcharset
meanvar
moiety_selection
molbond
molbondset
molecule
molecule_tree_index
molindex
molindex_set
mtype
nD_index
nD_ptrs
parameter_set
pdb_line
pdb_line_info
plane
position_set
queery_set
residue
residue_node
residue_tree_index
ringassign
ringmotion
rtype
sander_pmemd_cntrl
sander_pmemd_command_line
sander_pmemd_ewald
sander_pmemd_MD_control_info
sander_pmemd_MD_run_info
sander_pmemd_nmropt_wt_change
statsarray
stretch
tempintset
TI_INTEGRATION_INFO
torsion
torsion_index
torsion_type
twoassign
types
vectormag_3D
vibaddr
vibindex
vibmode