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

[detail level 12]

C_curve_data
CAssociatedLayers
CBandProperty
CColorAssociation
CDatasetProperty
CEnhanceCBInfo
CGDALAspectAlgData
▼CGDALDataset
CGDALColorReliefDataset
CGDALGeneric3x3Dataset
CGDALHillshadeAlgData
▼CGDALRasterBand
CGDALColorReliefRasterBand
CGDALGeneric3x3RasterBand
CGDALSlopeAlgData
CListFieldDesc
CNamedColor
▼COGRCoordinateTransformation
CCompositeCT
CCutlineTransformer
CGCPCoordTransformation
▼COGRLayer
COGRSplitListFieldLayer
CScaleParams
CTargetLayerInfo
CThreadContext
CVRTBuilder