Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Reset
ID_CA_CAMERASPACE_DEFORMER_OBJECT_RESETParameter: Camera
ID_CA_CAMERASPACE_DEFORMER_OBJECT_CAMERAParameter: Strength
ID_CA_CAMERASPACE_DEFORMER_OBJECT_STRENGTHParameter: Grid X
ID_CA_CAMERASPACE_DEFORMER_OBJECT_GRID_XParameter: Grid Y
ID_CA_CAMERASPACE_DEFORMER_OBJECT_GRID_YParameter: Safe Frame
ID_CA_CAMERASPACE_DEFORMER_OBJECT_SAFEFRAMEParameter: Draw Grid
ID_CA_CAMERASPACE_DEFORMER_OBJECT_DRAW