This inheritance list is sorted roughly, but not completely, alphabetically:

[detail level 123]

pqArraysModel::ArrayInfo
vtkArrayRenamerFilter::vtkInternals::ArrayInfo
CellExtractor
char_cmp
Container
CustomXYChartDisplayPanel
pqCustomXYChartDisplayPanel::pqInternal
ELGACmp
Engines_Component_i
VisualizationComponent_i
std::exception	STL class
MZCException
MZCException
vtkJSONException
vtkJSONException
exception_st
ExportedTinyInfo
ExtractCellTypeStatus
ExtractGroupStatus
ExtractGroupFam
ExtractGroupGrp
Fam
Grp
vtkJSONParser::Info
LightApp_DataModel
PVGUI_DataModel
LightApp_Module
PVGUI_Module	Implementation SALOME module wrapping ParaView GUI
MCAuto
MEDFileFieldRepresentationLeavesArrays
ParaMEDMEM2VTK::MEDCouplingMultiFieldsFetcher
MEDFileFieldRepresentationLeaves
MEDFileFieldRepresentationTree
MEDFileVTKTraits< T >
MEDFileVTKTraits< double >
MEDFileVTKTraits< int >
MEDReaderTimeModeWidget
pqMEDReaderTimeModeWidget::pqInternals
MEDReaderVectorsWidget
pqMEDReaderVectorsWidget::pqInternals
MEDTimeReq
MEDModeTimeReq
MEDStdTimeReq
MEDUtilities
MicroField
MPIObject_i
VisualizationComponent_i
PointExtractor
pqActiveViewOptions
MyViewActiveOptions
pqAutoGeneratedObjectPanel
pqTableTo3DPanel
pqDisplayPanel
MyDisplay	Simple display panel widget
pqCustomXYChartDisplayPanel	Editor widget for XY chart displays
pqDisplayPanelInterface
pqCustomChartDisplayPanelImplementation
pqCustomPlotSettingsModel::pqImplementation
PVGUI_ParaViewSettingsPane::pqInternals
pqNamedObjectPanel
pqTableReaderPanel
pqOptionsContainer
MyViewOptions	Options container for pages of my view options
pqPlotSettingsModel
pqCustomPlotSettingsModel
pqPropertyWidget
pqAbstractFieldsWidget
pqExtractGroupFieldsWidget
pqMEDReaderFieldsWidget
pqArraysEditorPropertyWidget	PqArraysEditorPropertyWidget is the pqPropertyWidget used to edit arrays and array's components
pqMEDReaderReloadWidget
pqMEDReaderTimeModeWidget
pqMEDReaderTimesFlagsWidget
pqMEDReaderVectorsWidget
pqPVAnimationWidget
ResizeHelper
pqView
MyView	Simple view that shows a QLabel with the display's name in the view
PropertyKeeper
QAbstractTableModel
pqArraysModel	Table model for the array's table
pqComponentsModel	Table model for the components table
VectBoolModel
QDialog
pqEditComponents
QFrame
VectBoolWidget
QLabel
NbOfActiveTSDisplay
QObject
pqCustomChartDisplayPanelImplementation
pqTableReaderPanel::pqUI
VectBoolItem
QStyledItemDelegate
OnOffDelegate
QTableView
VectBoolSpreadSheet
QtxUserDefinedContent
PVGUI_ParaViewSettingsPane	! This class is (almost) a copy/paste of what is found in <PARAVIEW>/Qt/Components/pqSettingsDialog.h This is (almost) the same, except for the inheritance to QtxUserDefinedContent providing the link to SALOME preference mechanism
Table2D::Row
Table2D
TableReaderPanel
pqTableReaderPanel::pqUI
TestFixture
vtkJSONParserTest
thread_Visualize_struct
TimeKeeper
ParaMEDMEM2VTK::TinyInfoOnField
Visualization
VisualizationComponent
VisualizationComponent_i
vtkAlgorithm
vtkElevationSurfaceFilter
vtkParaGEOMCorbaSource
vtkParaMEDCorbaSource
vtkParaSMESHCorbaSource
vtkDataObjectAlgorithm
vtkMEDWriter
vtkDataSetAlgorithm
vtkArrayRenamerFilter	Description of class: Class allows to rename data arrays and array's components
vtkExtractCellType
vtkExtractCellType::vtkExtractCellTypeInternal
vtkExtractGroup::vtkExtractGroupInternal
vtkGenerateVectors
vtkInformationDoubleVectorKey
vtkInformationGaussDoubleVectorKey
vtkArrayRenamerFilter::vtkInternals
vtkJSONNode
vtkJSONInfoNode
vtkJSONMetaNode
vtkMEDReader::vtkMEDReaderInternal
vtkMultiBlockDataSetAlgorithm
vtkEllipseBuilderFilter	Description of class: TODO
vtkExtractGroup
vtkMEDReader
vtkMEDReader
vtkMultiTimeStepAlgorithm
vtkDifferenceTimestepsFilter	Description of class: Class allows to compute difference between two time steps of one data array (field)
vtkObject
vtkJSONParser
vtkPassInputTypeAlgorithm
vtkScaleVectorFilter
vtkPolyDataAlgorithm
vtkSimpleMode
vtkTableTo3D
vtkPVInformation
vtkPVMetaDataInformation
vtkQuadraturePointsGenerator
vtkELNOFilter
vtkMEDQuadraturePointsGenerator
vtkSimpleMode::vtkSimpleModeInternal
vtkTableAlgorithm
vtkJSONReader
vtkVisuTableReader
vtkUnstructuredGridAlgorithm
vtkELNOMeshFilter
vtkELNOSurfaceFilter