Parameters are accessed with C4DAtom::GetParameter()/ C4DAtom::SetParameter(). See Parameter IDs.
Parameter: Image
CM_IMAGE_FILENAME
Parameter: Film Aspect
CM_RDATA_FILMASPECT
Parameter: CM_RDATA_FILMPRESET
CM_RDATA_FILMPRESET
Parameter: Image Scale
CM_IMAGE_VIEW_SCALE
Parameter: Image Offset X
CM_IMAGE_VIEW_OFFSET_X
Parameter: Image Offset Y
CM_IMAGE_VIEW_OFFSET_Y
Parameter: Brightness
CM_IMAGE_BRIGHTNESS
Parameter: Full Image
CM_IMAGE_VIEW_FULL
Parameter: Match Width
CM_IMAGE_MATCH_VIEW_WIDTH
Parameter: Match Height
CM_IMAGE_MATCH_VIEW_HEIGHT
Parameter: Solve Mode
PH_LENS_DISTORT_SOLVE_MODE
Parameter: Add Line
ADD_NEW_LINE
Parameter: Delete Selected Line
DELETE_SELECTED_LINE_MANUAL
Parameter: Add N-Point Line
ADD_NEW_TRIPLINE
Parameter: Auto Solve
PH_LENS_DISTORT_AUTO_SOLVE
Parameter: Delete Selected Line
DELETE_SELECTED_LINE_AUTOMATIC
Parameter: Lens Distortion Model
PH_LENS_DISTORT_MODEL
Parameter: Experimental
PH_LENS_M1_PARAM
Parameter: Quadratic
PH_LENS_M2_QUADRATIC_DISTORTION
Parameter: Cubic
PH_LENS_M2_CUBIC_DISTORTION
Parameter: X Offset
PH_LENS_A3_OFFX
Parameter: Y Offset
PH_LENS_A3_OFFY
Parameter: Quadratic
PH_LENS_M3_C2
Parameter: U Degree 2
PH_LENS_M3_U1
Parameter: V Degree 2
PH_LENS_M3_V1
Parameter: Quartic
PH_LENS_M3_C4
Parameter: U Degree 4
PH_LENS_M3_U3
Parameter: V Degree 4
PH_LENS_M3_V3
Parameter: Phi Cylindric Direction
PH_LENS_M3_PHI_CYL_DIR
Parameter: Phi Cylindric Direction
PH_LENS_M3_PHI_CYL_DIR
Parameter: B Cylindric Bending
PH_LENS_M3_B_CYL_BEND
Parameter: X Offset
PH_LENS_A4_OFFX
Parameter: Y Offset
PH_LENS_A4_OFFY
Parameter: Quadratic
PH_LENS_M4_C2
Parameter: Quartic
PH_LENS_M4_C4
Parameter: Curvature X
PH_LENS_M4_XCRV
Parameter: Curvature Y
PH_LENS_M4_YCRV
Parameter: Anamorphic Squeeze
PH_LENS_M4_ASQZ
Parameter: X Offset
PH_LENS_A5_OFFX
Parameter: Y Offset
PH_LENS_A5_OFFY
Parameter: Cx02
PH_LENS_M5_Cx02
Parameter: Cy02
PH_LENS_M5_Cy02
Parameter: Cx22
PH_LENS_M5_Cx22
Parameter: Cy22
PH_LENS_M5_Cy22
Parameter: Cx04
PH_LENS_M5_Cx04
Parameter: Cy04
PH_LENS_M5_Cy04
Parameter: Cx24
PH_LENS_M5_Cx24
Parameter: Cy24
PH_LENS_M5_Cy24
Parameter: Cx44
PH_LENS_M5_Cx44
Parameter: Cy44
PH_LENS_M5_Cy44
Parameter: Lens Rotation
PH_LENS_M5_ROT
Parameter: Lens Rotation
PH_LENS_M5_ROT
Parameter: Squeeze-X
PH_LENS_M5_XSQZ
Parameter: Squeeze-Y
PH_LENS_M5_YSQZ
Parameter: X Offset
PH_LENS_A6_OFFX
Parameter: Y Offset
PH_LENS_A6_OFFY
Parameter: Cx02
PH_LENS_M6_Cx02
Parameter: Cy02
PH_LENS_M6_Cy02
Parameter: Cx22
PH_LENS_M6_Cx22
Parameter: Cy22
PH_LENS_M6_Cy22
Parameter: Cx04
PH_LENS_M6_Cx04
Parameter: Cy04
PH_LENS_M6_Cy04
Parameter: Cx24
PH_LENS_M6_Cx24
Parameter: Cy24
PH_LENS_M6_Cy24
Parameter: Cx44
PH_LENS_M6_Cx44
Parameter: Cy44
PH_LENS_M6_Cy44
Parameter: Cx06
PH_LENS_M6_Cx06
Parameter: Cy06
PH_LENS_M6_Cy06
Parameter: Cx26
PH_LENS_M6_Cx26
Parameter: Cy26
PH_LENS_M6_Cy26
Parameter: Cx46
PH_LENS_M6_Cx46
Parameter: Cy46
PH_LENS_M6_Cy46
Parameter: Cx66
PH_LENS_M6_Cx66
Parameter: Cy66
PH_LENS_M6_Cy66
Parameter: X Offset
PH_LENS_A7_OFFX
Parameter: Y Offset
PH_LENS_A7_OFFY
Parameter: Quadratic
PH_LENS_M7_C2
Parameter: Quartic
PH_LENS_M7_C4
Parameter: Degree 6
PH_LENS_M7_C6
Parameter: Degree 8
PH_LENS_M7_C8
Parameter: Load Lens Profile
LD_LENS_LOAD_PROFILE
Parameter: Save Lens Profile
LD_LENS_SAVE_PROFILE