Here is a list of all struct and union fields with links to the structures/unions they belong to:

- h -

h1 : _dwg_ASSOCARRAYITEM , _dwg_object_ASSOC2DCONSTRAINTGROUP
h2 : _dwg_ASSOCARRAYITEM
h330_2 : _dwg_object_ASSOCCOMPOUNDACTIONPARAM , _dwg_object_ASSOCOSNAPPOINTREFACTIONPARAM , _dwg_object_ASSOCPATHACTIONPARAM , _dwg_object_ASSOCPOINTREFACTIONPARAM
h330_3 : _dwg_object_ASSOCCOMPOUNDACTIONPARAM , _dwg_object_ASSOCOSNAPPOINTREFACTIONPARAM , _dwg_object_ASSOCPATHACTIONPARAM , _dwg_object_ASSOCPOINTREFACTIONPARAM
h_nodeid : _dwg_object_ACSH_HISTORY_CLASS
HALOGAP : _dwg_header_variables
handedness : _dwg_entity_HELIX
handle : _dwg_AcDs_Data_RecordHdr , _dwg_AcDs_Search_IdIdx , _dwg_color , _dwg_CONTEXTDATA_submgr , _dwg_entity_eed , _dwg_EvalVariant , _dwg_LAYER_entry , _dwg_LIGHTLIST_light , _dwg_object , _dwg_TableCellContent , _dwg_VALUEPARAM_vars , Object_Map
handle91 : _dwg_EvalExpr
handleref : _dwg_object_object , _dwg_object_ref
handles : _dwg_secondheader
handlestream_size : _dwg_object
HANDLING : _dwg_header_variables
HANDSEED : _dwg_auxheader , _dwg_header_variables
hardowner : _dwg_object_DATALINK
has_action : _dwg_object_ASSOCEDGEACTIONPARAM
has_align_start : _dwg_object_ACSH_EXTRUSION_CLASS , _dwg_object_ACSH_SWEEP_CLASS
has_arrow2 : _dwg_OCD_Dimension
has_attribs : _dwg_entity_INSERT , _dwg_entity_MINSERT , _dwg_entity_TABLE
has_bgcolor : _dwg_TABLESTYLE_rowstyles
has_border_color_overrides : _dwg_entity_TABLE
has_border_lineweight_overrides : _dwg_entity_TABLE
has_border_visibility_overrides : _dwg_entity_TABLE
has_break_data : _dwg_entity_TABLE
has_child_param : _dwg_object_ASSOCCOMPOUNDACTIONPARAM , _dwg_object_ASSOCOSNAPPOINTREFACTIONPARAM , _dwg_object_ASSOCPATHACTIONPARAM , _dwg_object_ASSOCPOINTREFACTIONPARAM
has_civil_data : _dwg_object_GEODATA
has_content_blk : _dwg_MLEADER_AnnotContext
has_content_format_overrides : _dwg_TableCellContent
has_content_txt : _dwg_MLEADER_AnnotContext
has_derived : _dwg_entity_HATCH
has_dogleg : _dwg_entity_MULTILEADER , _dwg_LEADER_Node , _dwg_object_MLEADERSTYLE
has_ds_data : _dwg_object_entity , _dwg_object_object
has_edge_visualstyle : _dwg_object_entity
has_entries : _dwg_object_PARTIAL_VIEWING_INDEX
has_face_visualstyle : _dwg_object_entity
has_full_visualstyle : _dwg_object_entity
has_geom_data : _dwg_TableCell
has_graph : _dwg_object_EVALUATION_GRAPH
has_h1 : _dwg_ASSOCARRAYITEM
has_landing : _dwg_entity_MULTILEADER , _dwg_object_MLEADERSTYLE
has_lastleaderlinepoint : _dwg_LEADER_Node
has_lastpt_ref : _dwg_DIMASSOC_Ref
has_leader : _dwg_entity_ARC_DIMENSION
has_linked_data : _dwg_TableCell
has_name : _dwg_object_ASSOCDEPENDENCY
has_no_flags : _dwg_entity_3DFACE
has_object : _dwg_COMPOUNDOBJECTID
has_photometric_data : _dwg_entity_LIGHT
has_predefined : _dwg_object_MENTALRAYRENDERSETTINGS , _dwg_object_RAPIDRTRENDERSETTINGS , _dwg_object_RENDERSETTINGS
has_reflection : _dwg_3DSOLID_wire
has_revision_guid : _dwg_entity_3DSOLID , _dwg_entity_EXTRUDEDSURFACE , _dwg_entity_LOFTEDSURFACE , _dwg_entity_NURBSURFACE , _dwg_entity_PLANESURFACE , _dwg_entity_REVOLVEDSURFACE , _dwg_entity_SWEPTSURFACE , _dwg_object_ACSH_BREP_CLASS , _dwg_object_ASSOCASMBODYACTIONPARAM
has_rotation : _dwg_3DSOLID_wire
has_shadow : _dwg_object_SUN
has_shear : _dwg_3DSOLID_wire
has_strings : _dwg_object
has_strings_area : _dwg_object_LTYPE
has_t78 : _dwg_object_ASSOCVARIABLE
has_table_overrides : _dwg_entity_TABLE
has_target_grip : _dwg_entity_LIGHT
has_text_frame : _dwg_entity_MULTILEADER , _dwg_object_MLEADERSTYLE
has_vertex : _dwg_entity_POLYLINE_2D , _dwg_entity_POLYLINE_3D , _dwg_entity_POLYLINE_MESH , _dwg_entity_POLYLINE_PFACE
has_webfile : _dwg_entity_LIGHT
has_wires : _dwg_3DSOLID_silhouette
hasattrs : _dwg_object_BLOCK_HEADER
hashcode : _r2007_section
HATCH : _dwg_object_entity
hatch_angle : _dwg_SECTION_geometrysettings
hatch_angles : _dwg_object_SECTIONVIEWSTYLE
hatch_bg_color : _dwg_object_SECTIONVIEWSTYLE
hatch_color : _dwg_entity_MPOLYGON , _dwg_object_SECTIONVIEWSTYLE
hatch_pattern : _dwg_object_SECTIONVIEWSTYLE , _dwg_SECTION_geometrysettings
hatch_scale : _dwg_object_SECTIONVIEWSTYLE , _dwg_SECTION_geometrysettings
hatch_spacing : _dwg_SECTION_geometrysettings
hatch_transparency : _dwg_object_SECTIONVIEWSTYLE
hatch_type : _dwg_SECTION_geometrysettings
hdl : _dwg_BLOCKSTRETCHACTION_handles , _dwg_secondheader_handles
hdlpos : _dwg_object
hdls : _dwg_object_BLOCKPOLARSTRETCHACTION , _dwg_object_BLOCKSTRETCHACTION , _dwg_object_SPATIAL_INDEX
hdr : dwg_versions
header : _dwg_struct
header2_offset : r2007_file_header
header_address : _dwg_R2004_Header
header_crc : r2007_file_header
header_horiz_bottom_color : _dwg_entity_TABLE
header_horiz_bottom_linewt : _dwg_entity_TABLE
header_horiz_bottom_visibility : _dwg_entity_TABLE
header_horiz_ins_color : _dwg_entity_TABLE
header_horiz_ins_linewt : _dwg_entity_TABLE
header_horiz_ins_visibility : _dwg_entity_TABLE
header_horiz_top_color : _dwg_entity_TABLE
header_horiz_top_linewt : _dwg_entity_TABLE
header_horiz_top_visibility : _dwg_entity_TABLE
header_row_alignment : _dwg_entity_TABLE
header_row_color : _dwg_entity_TABLE
header_row_fill_color : _dwg_entity_TABLE
header_row_fill_none : _dwg_entity_TABLE
header_row_height : _dwg_entity_TABLE
header_row_style_override : _dwg_entity_TABLE
header_size : _dwg_R2004_Header , r2007_file_header
header_suppressed : _dwg_entity_TABLE
header_text_style : _dwg_entity_TABLE
header_vars : _dwg_struct
header_vert_ins_color : _dwg_entity_TABLE
header_vert_ins_linewt : _dwg_entity_TABLE
header_vert_ins_visibility : _dwg_entity_TABLE
header_vert_left_color : _dwg_entity_TABLE
header_vert_left_linewt : _dwg_entity_TABLE
header_vert_left_visibility : _dwg_entity_TABLE
header_vert_right_color : _dwg_entity_TABLE
header_vert_right_linewt : _dwg_entity_TABLE
header_vert_right_visibility : _dwg_entity_TABLE
height : _dwg_CellContentGeometry , _dwg_entity_ATTDEF , _dwg_entity_ATTRIB , _dwg_entity_RTEXT , _dwg_entity_TEXT , _dwg_entity_TOLERANCE , _dwg_entity_VIEWPORT , _dwg_MLEADER_Content_MText , _dwg_object_ACSH_BOX_CLASS , _dwg_object_ACSH_CONE_CLASS , _dwg_object_ACSH_CYLINDER_CLASS , _dwg_object_ACSH_PYRAMID_CLASS , _dwg_object_ACSH_WEDGE_CLASS , _dwg_object_GEOMAPIMAGE , _dwg_object_GRADIENT_BACKGROUND , _dwg_TABLE_BreakHeight , _dwg_TableRow
height_w_gap : _dwg_TableCell , _dwg_TABLEGEOMETRY_Cell
HELIX : _dwg_object_entity
hexindex : _dwg_SECTION_geometrysettings
HIDETEXT : _dwg_header_variables
highlevel_info : _dwg_object_RENDERGLOBAL
histories : _dwg_revhistory
history_id : _dwg_entity_3DSOLID , _dwg_entity_EXTRUDEDSURFACE , _dwg_entity_LOFTEDSURFACE , _dwg_entity_NURBSURFACE , _dwg_entity_PLANESURFACE , _dwg_entity_REVOLVEDSURFACE , _dwg_entity_SWEPTSURFACE , _dwg_object_ACSH_BREP_CLASS , _dwg_object_ASSOCASMBODYACTIONPARAM
history_node : _dwg_object_ACSH_BOOLEAN_CLASS , _dwg_object_ACSH_BOX_CLASS , _dwg_object_ACSH_BREP_CLASS , _dwg_object_ACSH_CHAMFER_CLASS , _dwg_object_ACSH_CONE_CLASS , _dwg_object_ACSH_CYLINDER_CLASS , _dwg_object_ACSH_EXTRUSION_CLASS , _dwg_object_ACSH_FILLET_CLASS , _dwg_object_ACSH_LOFT_CLASS , _dwg_object_ACSH_PYRAMID_CLASS , _dwg_object_ACSH_REVOLVE_CLASS , _dwg_object_ACSH_SPHERE_CLASS , _dwg_object_ACSH_SWEEP_CLASS , _dwg_object_ACSH_TORUS_CLASS , _dwg_object_ACSH_WEDGE_CLASS
hookline_dir : _dwg_entity_LEADER
hookline_on : _dwg_entity_LEADER
hor_dir : _dwg_entity_TABLE
horiz_alignment : _dwg_entity_ATTDEF , _dwg_entity_ATTRIB , _dwg_entity_TEXT
horiz_cell_margin : _dwg_entity_TABLE , _dwg_object_TABLESTYLE
horiz_dir : _dwg_DIMENSION_common , _dwg_entity_ARC_DIMENSION , _dwg_entity_DIMENSION_ALIGNED , _dwg_entity_DIMENSION_ANG2LN , _dwg_entity_DIMENSION_ANG3PT , _dwg_entity_DIMENSION_DIAMETER , _dwg_entity_DIMENSION_LINEAR , _dwg_entity_DIMENSION_ORDINATE , _dwg_entity_DIMENSION_RADIUS , _dwg_entity_LARGE_RADIAL_DIMENSION , _dwg_object_FCFOBJECTCONTEXTDATA
horiz_direction : _dwg_entity_TABLE
horiz_margin : _dwg_CellStyle
horizon : _dwg_object_GRADIENT_BACKGROUND
horizontal_mode : _dwg_object_MTEXTATTRIBUTEOBJECTCONTEXTDATA , _dwg_object_TEXTOBJECTCONTEXTDATA
host_block : _dwg_object_GEODATA
host_drawing_visibility : _dwg_object_NAVISWORKSMODELDEF
hotspot_angle : _dwg_entity_LIGHT
hour : _dwg_object_DATALINK
hours : _dwg_object_SUNSTUDY
HYPERLINKBASE : _dwg_header_variables , _dwg_summaryinfo