| ►Npcl | PCL root namespace |
| NAbsoluteResizeMode | Absolute resizing modes for the Resample process |
| NAlign | Control alignment modes |
| NAPASSStarFlag | Data availability and quality flags for APASS star data |
| NArgumentItemMode | Non-parametric argument parsing modes |
| NArgumentOption | Working options affecting how non-parametric arguments are interpreted |
| NBackgroundBrush | Transparency background brushes |
| NBitmapFormat | Bitmap pixel value interpretation modes |
| NBrushStyle | Supported brush styles |
| NCFAType | Color Filter Array types |
| NCheckState | Button check states |
| NClip | Clip codes used by the Cohen-Sutherland line clipping algorithm |
| NColorSpace | Supported color spaces |
| NCompositionOp | Image composition operators |
| NCropMode | Image cropping modes for the Crop geometric transformation |
| NDisplayChannel | Rendering modes for image display and bitmap renditions |
| NDrizzleParserOption | Drizzle data parsing options |
| NExternalProcessError | External process error conditions |
| NFFTDirection | Defines directions and types of fast Fourier transforms |
| NFileAttribute | File attributes |
| NFileMode | File access, share and opening/creation modes |
| NFillRule | Polygon fill rules |
| NFindMode | Flags to control text find and replacement operations |
| NFocusStyle | Control focus styles |
| NFontFamily | Platform-independent, standard font families |
| NFontStretch | Standard font stretchs |
| NFontWeight | Standard font weights |
| NFrameStyle | Frame styles |
| NGaiaStarFlag | Data availability and quality flags for Gaia star data |
| NGlobalVariableType | Data types for global platform variables |
| NGradientSpreadMode | Supported gradient spread modes |
| NICCColorSpace | Representation of data and connection color spaces in ICC color profiles |
| NICCProfileClass | Representation of ICC color profile classes |
| NICCRenderingDirection | ICC transform rendering direction |
| NICCRenderingIntent | ICC rendering intents |
| NImageMode | GUI operation modes |
| NImageOp | Arithmetic, bitwise logical and pixel composition operations |
| NImageType | Standard image types |
| NInstallMode | Module installation modes |
| NIntegerDownsampleMode | Downsampling operations for IntegerResample |
| NInterfaceFeature | Provides symbolic constants defining feature flags to customize process interfaces |
| NInterpolationAlgorithm | Standard pixel interpolation algorithms |
| NJPLEphemerisItem | JPL planetary ephemeris items |
| NKeyboardModifier | Defines PCL keyboard modifiers |
| NKeyCode | Defines PCL key codes |
| NKeyModifier | Defines PCL key modifier codes |
| NMaskMode | Mask rendering modes for image display and bitmap renditions |
| NMouseButton | Defines PCL mouse button codes |
| NPenCap | Pen cap styles |
| NPenJoin | Pen join styles |
| NPenStyle | Pen drawing styles |
| NPerformanceAnalysisAlgorithm | Algorithms with core thread performance analysis |
| NProcessParameterType | Process parameter data types |
| NPSFFitStatus | PSF fit process results |
| NPSFunction | Point spread function types |
| NRadialBasisFunction | Implemented radial basis functions (RBFs) for surface spline interpolation/approximation |
| NRandomizationOption | String randomization options |
| NReadoutData | Pixel readout data modes |
| NReadoutMode | Pixel readout calculation modes |
| NReadTextOption | File text reading options |
| NRealTimePreviewGenerationFlag | Real-time preview generation flags |
| NResizeMode | Resizing modes for the Resample process |
| NSeekMode | File seek modes |
| NStdButton | Standard MessageBox buttons |
| NStdCursor | Standard cursor shapes available in the PixInsight core application |
| NStdDialogCode | Standard dialog return codes |
| NStdIcon | Standard MessageBox icons |
| NSVGRenderOption | Rendering options for raster image representation of SVG documents |
| NSwapCompression | Compression algorithms for raw image file generation |
| NTabPosition | Tab positions in TabBox controls |
| NTextAlign | Text alignment modes |
| NThreadPriority | Thread scheduling priorities |
| NTickStyle | Slider tick styles |
| NTransparencyMode | Transparency rendering modes |
| NUndoFlag | History data item specifiers for ProcessImplementation::UndoMode() |
| NVariantType | Variant data types |
| NViewPropertyAttribute | Attributes of view properties |
| NXISFByteOrder | XISF block byte order |
| NXISFChecksum | XISF block checksum algorithms |
| NXISFCompression | XISF block compression codecs |
| NXISFMessageType | XISF log message types |
| NXMLNodeType | XML document node types |
| NXMLParserOption | XML document parsing options |
| CAbstractFFT | Abstract base class of all fast Fourier transform classes |
| CAbstractFFT2D | Abstract base class of all two-dimensional fast Fourier transform classes |
| ►CAbstractImage | Base class of all two-dimensional images in PCL |
| CThreadData | Thread synchronization data for status monitoring of parallel image processing tasks |
| CAction | Client-side interface to a PixInsight module-defined action object |
| CActionInfo | Provides information about the current state of the core application's GUI to module-defined actions |
| CAdaptiveLocalFilter | Adaptive, local noise reduction filter in the spatial domain |
| CAES256 | AES-256 cipher |
| CAkimaInterpolation | Akima subspline interpolation algorithm |
| CAlignedAllocator | A block allocator class for aligned memory allocation/deallocation |
| CAllocator | Provides memory allocation for PCL containers |
| CAlphaTrimmedMeanFilter | Alpha-trimmed mean operator |
| CAngleConversionOptions | A set of options specific for string representations of angles |
| CAPASSDatabaseFile | APASS catalog star database file (XPSD format) |
| CAPASSStarData | Star data structure for APASS catalog search operations |
| CArgument | A command-line argument |
| CArray | Generic dynamic array |
| CAssociation | Generic association of two objects |
| ►CAstrometricMetadata | Astrometric metadata |
| CDescriptionItems | A collection of strings describing the properties and parameters of an astrometric solution |
| CAstrometricReprojection | Astrometric image reprojection |
| CAtomicInt | Atomic operations on integers |
| ►CATrousWaveletTransform | Discrete isotropic à trous wavelet transform |
| CWaveletScalingFunction | The scaling function of a wavelet transform |
| CAutoLock | Automatic mutex lock/unlock |
| CAutoLockCounter | Automatic mutex lock/unlock with limited concurrent access allowance |
| CAutoPointer | A smart pointer with exclusive object ownership and optional automatic object destruction |
| CAutoPointerCloner | A smart pointer able to generate dynamically allocated copies of the objects pointed to by other smart pointers |
| CAutoReentrancyGuard | Automatic reentrancy guard sentinel |
| CAutoStatusCallbackRestorer | Automatic recovery of status monitoring callbacks |
| CAutoViewLock | Automatic view lock/unlock |
| CAutoViewWriteLock | Automatic write-only view lock/unlock |
| CBayerFilterBGGR | BGGR Bayer filter representation |
| CBayerFilterGBRG | GBRG Bayer filter representation |
| CBayerFilterGRBG | GRBG Bayer filter representation |
| CBayerFilterRGGB | RGGB Bayer filter representation |
| CBicubicBSplineInterpolation | Bicubic B-Spline Interpolation Algorithm |
| CBicubicBSplinePixelInterpolation | Bicubic B-spline pixel interpolation |
| CBicubicFilterInterpolation | Bicubic filter interpolation algorithms |
| CBicubicFilterPixelInterpolation | Pixel interpolation based on Mitchell-Netravali parameterized bicubic filters |
| CBicubicInterpolation | Bicubic interpolation - an alias for BicubicSplineInterpolation |
| CBicubicInterpolationBase | Base class for bicubic interpolation algorithm implementations |
| CBicubicPixelInterpolation | Bicubic pixel interpolation - an alias for BicubicSplinePixelInterpolation |
| CBicubicSplineInterpolation | Bicubic spline interpolation algorithm |
| CBicubicSplinePixelInterpolation | Bicubic spline pixel interpolation |
| CBidimensionalInterpolation | A generic interface to two-dimensional interpolation algorithms |
| CBidirectionalImageTransformation | Root base class for bidirectional PCL image transformations |
| CBidirectionalIterator | Bidirectional iterator class |
| CBilinearInterpolation | Bilinear interpolation algorithm |
| CBilinearPixelInterpolation | Bilinear pixel interpolation |
| CBitmap | Client-side interface to a PixInsight Bitmap object |
| CBitmapBox | Client-side interface to a PixInsight BitmapBox control |
| CBitmapStructure | A structuring element where static strings are used to define custom existence matrices |
| CBoxStructure | Standard box (square) structure |
| CBrush | Client-side interface to a PixInsight Brush object |
| CButton | Abstract base class for all client-side interfaces to PixInsight button controls |
| CCanvasColor | A set of color values used to fill free or unused areas of images |
| CCatmullRomSplineFilter | Catmull-Rom spline filter |
| CCaughtException | An exception that has already been handled |
| CCharTraits | A template instantiation of GenericCharTraits for char16_type |
| CCheckBox | Client-side interface to a PixInsight CheckBox control |
| CCipher | Abstract base class for cipher algorithm implementations |
| CCircularStructure | Standard circular structure |
| CCodeEditor | Client-side interface to a PixInsight CodeEditor control |
| CColorComboBox | A ComboBox descendant class to select RGB colors |
| CColorFilterArray | Color filter array (CFA) structure |
| CComboBox | Client-side interface to a PixInsight ComboBox control |
| CComplex | Generic complex number |
| CComplexPixelTraits | 32-bit IEEE 754 normalized floating point complex pixel traits |
| ►CCompression | Abstract base class of data compression algorithm implementations |
| CPerformance | Compression/decompression performance measurements |
| CSubblock | Compression subblock data |
| CConicalGradientBrush | Conical gradient brush |
| CConsistentlyDefined | An object that can be in consistently defined or undefined/inconsistent states |
| CConsole | A high-level interface to a PixInsight processing console |
| CConst | Fundamental numeric constants |
| CContainer | Root base class of all PCL containers |
| CControl | Client-side interface to a PixInsight Control object |
| CConvolution | Discrete two-dimensional nonseparable convolution in the spatial domain |
| CCrop | Image cropping/expansion algorithm |
| CCryptographicHash | Abstract base class for cryptographic hashing algorithm implementations |
| CCryptographicHashFactory | Selectable cryptographic hashing algorithm |
| CCubicBSplineFilter | Cubic B-spline filter |
| CCubicFilter | Mitchell-Netravali parameterized cubic filters |
| CCubicSplineInterpolation | Generic interpolating cubic spline |
| CCUDADevice | Access to core CUDA device services |
| CCursor | Client-side interface to a PixInsight Cursor object |
| CDaubechies10Filter | Daubechies-10 wavelet filter |
| CDaubechies12Filter | Daubechies-12 wavelet filter |
| CDaubechies20Filter | Daubechies-20 wavelet filter |
| CDaubechies4Filter | Daubechies-4 wavelet filter |
| CDaubechies6Filter | Daubechies-6 wavelet filter |
| CDaubechies8Filter | Daubechies-8 wavelet filter |
| CDComplexPixelTraits | 64-bit IEEE 754 normalized floating point complex pixel traits |
| CDecConversionOptions | A set of options specific for string representations of declination angles |
| CDiagonalStructure | Standard diagonal structure |
| CDialog | Client-side interface to a PixInsight modal dialog |
| CDilationFilter | Dilation morphological operator |
| CDirectContainer | Root base class of all PCL containers of objects |
| CDirectSortedContainer | Root base class of all PCL sorted containers of objects |
| CDisplayFunction | Adaptive histogram transformations for image visualization |
| CDoublePixelTraits | 64-bit IEEE 754 normalized floating point real pixel traits |
| CDrizzleData | Drizzle integration data parser and generator |
| CEdit | Client-side interface to a PixInsight Edit control |
| CElapsedTime | High-resolution time stamp |
| CEphemerisConstant | A numerical constant defined in an ephemeris file (XEPH format) |
| ►CEphemerisFile | Solar system ephemerides from XEPH files |
| CHandle | Calculation of ephemerides from data stored in XEPH files |
| CEphemerisMetadata | Metadata items available in ephemeris files (XEPH format) |
| CEphemerisObject | Identifiers and descriptive data of an object available in an ephemeris file |
| CErosionFilter | Erosion morphological operator |
| CError | A simple exception with an associated error message |
| CException | Root base class for all PCL exception classes |
| CExternalProcess | Execution of external programs |
| CFact | Factorial function |
| CFatalError | Errors that cause immediate program termination |
| CFFTConvolution | Fourier-based two-dimensional convolution in the spatial domain |
| CFFTRegistrationEngine | Base class of FFT-based image registration algorithms |
| CFFTRotationAndScaling | FFT registration engine: rotation and scaling |
| CFFTTranslation | FFT registration engine: translation |
| CFGaussJordan | Gauss-Jordan linear system solver for FMatrix objects |
| ►CFile | A platform-independent interface to the local file system |
| CError | File I/O exception |
| CFind | Directory search operation |
| CProgress | Abstract base class of file progress objects |
| CFileDataCache | Abstract base class of file data cache implementations |
| CFileDataCacheItem | Element of a file data cache |
| CFileDataCachePreferencesDialog | A dialog to edit file data cache preferences settings |
| CFileDialog | Abstract base class of PCL file dialogs |
| CFileFilter | A description of a file type and its associated file extensions |
| CFileFormat | High-level interface to an installed image file format |
| CFileFormatBase | Abstract base class for image file format descriptions |
| CFileFormatImplementation | Implementation of a PixInsight file format instance |
| CFileFormatInstance | High-level interface to an image file format instance |
| CFileInfo | Platform-independent information on file and directory items |
| CFileTime | File date and time |
| CFindFileInfo | File information structure used by File::Find |
| CFInPlaceSVD | In-place singular value decomposition algorithm for FMatrix and FVector objects |
| CFITSHeaderKeyword | FITS header keyword |
| CFlags | A type-safe collection of enumerated flags |
| CFloatPixelTraits | 32-bit IEEE 754 normalized floating point real pixel traits |
| CFluxCalibrationData | Flux calibration data parser and generator |
| CFont | Client-side interface to a PixInsight Font object |
| CFontComboBox | A ComboBox descendant class to select font faces |
| CForwardIterator | Forward iterator class |
| CFourierTransform | Out-of-place discrete Fourier transform of two-dimensional images |
| CFrame | Client-side interface to a PixInsight Frame control |
| CFSVD | Singular value decomposition algorithm for FMatrix and FVector objects |
| CGaiaDatabaseFile | Gaia catalog star database file (XPSD format) |
| CGaiaSearchData | Data items and parameters for Gaia catalog search operations |
| CGaiaStarData | Star data structure for Gaia catalog search operations |
| CGaiaStarDataBase | Star data base structure for Gaia catalog search operations |
| CGammaRandomDeviates | Generation of random gamma deviates |
| CGaussianFilter | A kernel filter implementing a discrete Gaussian distribution in two dimensions |
| CGaussJordan | Gauss-Jordan linear system solver for Matrix objects |
| CGenericCharTraits | Generic base class of character traits classes |
| CGenericChebyshevFit | Approximation of vector-valued functions by Chebyshev polynomial expansions |
| CGenericFFT | Generic fast Fourier transform of complex data |
| CGenericFFT2D | Generic two-dimensional fast Fourier transform of complex data |
| CGenericGaussJordan | Generic Gauss-Jordan linear system solver |
| ►CGenericImage | Implements a generic, two-dimensional, shared or local image |
| Cconst_filter_pixel_iterator | Immutable filter pixel iterator |
| Cconst_filter_sample_iterator | Immutable filter pixel sample iterator |
| Cconst_pixel_iterator | Immutable pixel iterator |
| Cconst_roi_filter_pixel_iterator | Immutable region-of-interest, filter pixel iterator |
| Cconst_roi_filter_sample_iterator | Immutable region-of-interest, filter pixel sample iterator |
| Cconst_roi_pixel_iterator | Immutable region-of-interest pixel iterator |
| Cconst_roi_sample_iterator | Immutable region-of-interest pixel sample iterator |
| Cconst_sample_iterator | Immutable pixel sample iterator |
| Cfilter_pixel_iterator | Mutable filter pixel iterator |
| Cfilter_sample_iterator | Mutable filter pixel sample iterator |
| Cpixel_iterator | Mutable pixel iterator |
| Croi_filter_pixel_iterator | Mutable region-of-interest, filter pixel iterator |
| Croi_filter_sample_iterator | Mutable region-of-interest, filter pixel sample iterator |
| Croi_pixel_iterator | Mutable region-of-interest pixel iterator |
| Croi_sample_iterator | Mutable region-of-interest pixel sample iterator |
| Csample_iterator | Mutable pixel sample iterator |
| CGenericInPlaceSVD | Generic in-place singular value decomposition algorithm |
| CGenericMatrix | Generic dynamic matrix of arbitrary dimensions |
| CGenericMultiVector | Generic array of vectors |
| CGenericPixelTraits | Base class of all pixel traits classes |
| CGenericPoint | A generic point in the two-dimensional space |
| CGenericRealFFT | Generic fast Fourier transform of real data |
| CGenericRealFFT2D | Generic two-dimensional fast Fourier transform of real data |
| CGenericRectangle | A generic rectangle in the two-dimensional space |
| CGenericScalarChebyshevFit | Approximation of scalar-valued functions by Chebyshev polynomial expansion |
| CGenericString | Generic character string |
| CGenericSVD | Generic singular value decomposition algorithm |
| CGenericVector | Generic vector of arbitrary length |
| CGeometricTransformation | Abstract base class of all PCL geometric image transformations |
| CGetDirectoryDialog | A modal dialog box to select an existing directory |
| CGnomonicProjection | Gnomonic projection system |
| ►CGradientBrush | Base class of PCL gradient brushes |
| CStop | Gradient stop |
| CGraphics | Client-side interface to a PixInsight graphics context object |
| CGraphicsContextBase | Base class of client-side interface classes to PixInsight graphics contexts |
| CGridInterpolation | Discretized scalar surface interpolation/approximation in two dimensions |
| CGroupBox | Client-side interface to a PixInsight GroupBox control |
| CHammerAitoffProjection | Hammer-Aitoff projection system |
| CHistogram | Discrete image histogram function |
| ►CHistogramTransformation | Multiple histogram transformation |
| CFlags | Characterizes a histogram transformation pertaining to a histogram transformation chain |
| CHomography | Homography geometric transformation |
| CHorizontalMirror | Mirrors images horizontally |
| CHorizontalSizer | Client-side interface to a PixInsight horizontal sizer |
| CHorizontalSlider | Horizontal slider control |
| ►CICCProfile | A high-level interface to ICC color profiles |
| CInfo | A structure to hold descriptive data about ICC profiles |
| CICCProfileTransformation | Conversion of pixel values between ICC profile color spaces |
| CICCProofingTransformation | A soft proofing ICC profile transformation |
| CImageColor | Implements color space properties of images |
| CImageDescription | A structure to transport basic information and options for an image stored in an image file |
| CImageGeometry | Implements geometric properties of two-dimensional images |
| CImageInfo | A simple structure to hold basic information about images |
| CImageOptions | Format-independent, fundamental image stream options |
| CImageResolution | Image resolution data |
| CImageSelections | A structure used to store rectangular image selections, channel ranges, anchor points, and clipping ranges |
| ►CImageStatistics | Descriptive image statistics |
| CData | Statistical data in the normalized [0,1] range |
| CImageTransformation | Root base class of all PCL image transformations |
| CImageVariant | Acts like a union for all types of images in PCL, with optional class-wide ownership of transported images |
| CImageView | Client-side interface to a PixInsight ImageView control |
| CImageWindow | High-level interface to an image window object in the PixInsight core application |
| CIndirectArray | Generic dynamic array of pointers to objects |
| CIndirectBinaryFunction | A wrapper class that applies a binary function to pointers to objects |
| CIndirectBinaryPredicate | A wrapper class that applies a binary predicate to pointers to objects |
| CIndirectContainer | Root base class of all PCL containers of pointers to objects |
| CIndirectEqual | A functional class that tests two pointers for equality of the pointed objects |
| CIndirectLess | A functional class that applies the less than relational operator to the objects pointed to by two pointers |
| CIndirectSortedArray | Generic dynamic sorted array of pointers to objects |
| CIndirectSortedContainer | Root base class of all PCL sorted containers of pointers to objects |
| CIndirectUnaryFunction | A wrapper class that applies a unary function to pointers to objects |
| CIndirectUnaryPredicate | A wrapper class that applies a unary predicate to pointers to objects |
| CInPlaceFourierTransform | In-place discrete Fourier transform of two-dimensional complex images |
| CInPlaceInverseFourierTransform | In-place discrete inverse Fourier transform of two-dimensional complex images |
| CInPlaceSVD | In-place singular value decomposition algorithm for Matrix and Vector objects |
| CIntegerResample | A geometric transformation to resample images by integer ratios |
| CInterlacedTransformation | Interlaced image transformation in the spatial domain |
| CInterpolatingGeometricTransformation | Abstract base class of all PCL interpolating geometric image transformations |
| CISO8601ConversionOptions | Formatting options for string representations of dates and times in ISO 8601 format |
| CISO8601ConversionOptionsNoTimeZone | Formatting options for string representations of dates and times in ISO 8601 format. Special variant to disable time zone specifiers |
| CIsoCharTraits | A template instantiation of GenericCharTraits for the char type |
| CIsoString | Eight-bit string (ISO/IEC-8859-1 or UTF-8 string) |
| CIterator | Generic container iterator |
| CJPLEphemeris | JPL planetary ephemeris |
| CKDTree | Bucket PR K-d tree for point data in arbitrary dimensions |
| CKernelFilter | Kernel filter in two dimensions |
| CKeyValue | Generic key-value association |
| CLabel | Client-side interface to a PixInsight Label control |
| CLanczos3LUTInterpolation | Two dimensional LUT-based 3rd-order Lanczos interpolation algorithm |
| CLanczos3LUTPixelInterpolation | Lanczos 3rd-order LUT-based pixel interpolation |
| CLanczos4LUTInterpolation | Two dimensional LUT-based 4th-order Lanczos interpolation algorithm |
| CLanczos4LUTPixelInterpolation | Lanczos 3rd-order LUT-based pixel interpolation |
| CLanczos5LUTInterpolation | Two dimensional LUT-based 5th-order Lanczos interpolation algorithm |
| CLanczos5LUTPixelInterpolation | Lanczos 5th-order LUT-based pixel interpolation |
| CLanczosInterpolation | Two dimensional Lanczos interpolation algorithm |
| CLanczosPixelInterpolation | Lanczos pixel interpolation |
| CLatitudeConversionOptions | A set of options specific for string representations of latitude angles |
| CLinearFilter | A kernel filter that follows a discrete linear distribution with radial symmetry in two dimensions |
| CLinearFit | Robust straight line fitting by minimization of mean absolute deviation |
| CLinearGradientBrush | Linear gradient brush |
| CLinearInterpolation | Linear interpolation algorithm |
| CLinearTransformation | A linear geometric transformation on the plane defined as a 2x3 matrix of 64-bit floating point scalars |
| CLinearWorldTransformation | Linear world coordinate transformation |
| CLocalNormalizationData | Normalization data parser and generator |
| CLogPolarTransform | In-place transformation to log-polar coordinates |
| CLongitudeConversionOptions | A set of options specific for string representations of longitude angles |
| CLZ4Compression | Implementation of the LZ4 compression algorithm |
| CLZ4HCCompression | Implementation of the LZ4-HC compression algorithm |
| CMD5 | Implementation of the MD5 cryptographic hashing algorithm |
| CMeanFilter | Square block average kernel filter |
| CMedianFilter | Morphological median operator |
| CMercatorProjection | Mercator projection system |
| CMessageBox | High-level interface to a PixInsight MessageBox object |
| CMetaBlock | A formal description of a block process parameter |
| CMetaBoolean | A formal description of a Boolean process parameter |
| CMetaDouble | A formal description of a 64-bit IEEE 754 floating point process parameter |
| CMetaEnumeration | A formal description of an enumerated process parameter |
| CMetaFileFormat | A formal description of an image file format in PixInsight |
| CMetaFloat | A formal description of a 32-bit IEEE 754 floating point process parameter |
| CMetaInt16 | A formal description of a 16-bit signed integer process parameter |
| CMetaInt32 | A formal description of a 32-bit signed integer process parameter |
| CMetaInt64 | A formal description of a 64-bit signed integer process parameter |
| CMetaInt8 | A formal description of an 8-bit signed integer process parameter |
| CMetaInteger | A formal description of an integer process parameter |
| CMetaModule | A formal description of a PixInsight module |
| CMetaNumeric | A formal description of a numeric process parameter |
| CMetaObject | Root base class for all PixInsight module components |
| CMetaParameter | Root base class for PCL classes providing formal descriptions of process parameters |
| CMetaProcess | A formal description of a PixInsight process |
| CMetaReal | A formal description of a real process parameter |
| CMetaSignedInteger | A formal description of a signed integer process parameter |
| CMetaString | A formal description of a string process parameter |
| CMetaTable | A formal description of a table process parameter |
| CMetaUInt16 | A formal description of a 16-bit unsigned integer process parameter |
| CMetaUInt32 | A formal description of a 32-bit unsigned integer process parameter |
| CMetaUInt64 | A formal description of a 64-bit unsigned integer process parameter |
| CMetaUInt8 | A formal description of an 8-bit unsigned integer process parameter |
| CMetaUnsignedInteger | A formal description of an unsigned integer process parameter |
| CMetaVariableLengthParameter | A formal description of a variable length process parameter |
| CMidpointFilter | Midpoint operator |
| CMitchellNetravaliCubicFilter | Mitchell-Netravali cubic filter with B=C=1/3 |
| CMoffatFilter | A kernel filter implementing a discrete Moffat distribution in two dimensions |
| CMorphologicalOperator | Abstract base class of all PCL morphological operators |
| CMorphologicalTransformation | Generic n-way morphological transformation |
| CMultiscaleLinearTransform | A redundant multiscale transform using separable convolutions |
| CMultiscaleMedianTransform | Multiscale median transform / hybrid median-wavelet transform |
| CMultiViewSelectionDialog | A simple dialog box to select a set of existing views |
| CMuteStatus | A status monitoring callback that does not provide any progress information |
| CMutex | Adaptive mutual exclusion lock variable |
| CNearestNeighborInterpolation | Two-dimensional nearest neighbor interpolation algorithm |
| CNearestNeighborPixelInterpolation | NearestNeighbor pixel interpolation |
| CNetworkTransfer | Synchronous network transfers |
| CNormalRandomDeviates | Generation of random normal (Gaussian) deviates |
| CNotImplemented | An exception that indicates an unsupported feature |
| CNumericControl | A label/edit/slider compound control to edit numeric parameters |
| CNumericEdit | A label/edit compound control to edit numeric parameters |
| CObserverPosition | Geodetic coordinates of a terrestrial observer |
| COnlineObjectSearchDialog | A dialog box to search for object data on online astronomical database services |
| COpenFileDialog | A modal dialog box to select one or more existing files |
| COptional | An object that can be in a defined or undefined state |
| COrthogonalStructure | Standard orthogonal structure |
| COrthographicProjection | Orthographic projection system |
| COsculatingElements | Osculating conic orbital elements |
| CParallelProcess | A process using multiple concurrent execution threads |
| CParseError | Base class for exceptions thrown by parsing routines |
| Cpcl_bool | A first-class data type that can be safely used to implement Boolean process parameters on all supported platforms |
| CPen | Client-side interface to a PixInsight Pen object |
| CPixelAllocator | Manages transparent allocation and deallocation of shared and local pixel data |
| ►CPixelInterpolation | Abstract root base class for all pixel interpolation algorithms |
| CInterpolator | Generic two-dimensional pixel interpolator |
| CPixInsightSettings | Retrieves global settings from the PixInsight core application |
| CPixInsightVersion | Provides version information for the PixInsight core application |
| CPlateCarreeProjection | Plate-Carree projection system |
| CPointGridInterpolation | Discretized vector surface interpolation/approximation in two dimensions |
| CPointsClockwisePredicate | Predicate class for sorting a set of points in clockwise direction |
| CPointShepardInterpolation | Vector Shepard interpolation/approximation in two dimensions |
| CPointSurfacePolynomial | Vector polynomial interpolation/approximation in two dimensions |
| CPointSurfaceSpline | Vector surface spline interpolation/approximation in two dimensions |
| CPoissonRandomDeviates | Generation of random Poisson deviates |
| CPolarTransform | In-place transformation to polar coordinates |
| CPolarTransformBase | Base class of polar transforms |
| CPosition | Reduction of planetary and stellar positions |
| CPow10I | Exponential function 10**n, n being a signed integer |
| CPow2I | Exponential function 2**n, n being a signed integer |
| CPreviewSelectionDialog | A simple dialog box to select an existing preview |
| CProcess | High-level interface to an installed process |
| CProcessBase | Abstract base class for process descriptions |
| CProcessImplementation | Implementation of a PixInsight process instance |
| CProcessInstance | High-level interface to a process instance |
| CProcessInterface | Client-side interface to a PixInsight process interface window |
| ►CProcessParameter | Identifies and describes a process parameter |
| CEnumerationElement | Structure used to describe an enumeration element |
| CProgressBarStatus | A status monitoring callback that shows a modal progress dialog |
| CProgressDialog | A simple progress bar dialog box |
| CProjectionBase | Base class of all projection systems |
| CProjectionFactory | Selectable projection system |
| CProperty | An identifier-value association |
| CPropertyDescription | A structure to describe a data property |
| CPSFData | PSF fit parameters |
| CPSFEstimator | Base class of estimators based on PSF photometry |
| CPSFFit | Numerical Point Spread Function (PSF) fit to a source in an image |
| ►CPSFScaleEstimator | Estimation of relative image scale based on PSF photometry |
| CEstimates | Structure to hold a PSF relative scale estimate |
| ►CPSFSignalEstimator | Signal estimation based on PSF photometry |
| CEstimates | Structure to hold PSF flux and robust mean background estimates |
| CPushButton | Client-side interface to a PixInsight PushButton control |
| CPyramidalWaveletTransform | Discrete two-dimensional wavelet transforms by the pyramidal algorithms |
| ►CQuadTree | Bucket PR quadtree for two-dimensional point data |
| CLeafNode | Quadtree leaf node structure |
| CNode | Quadtree node structure |
| CRAConversionOptions | A set of options specific for string representations of right ascensions |
| CRadialGradientBrush | Radial gradient brush |
| CRadioButton | Client-side interface to a PixInsight RadioButton control |
| CRandomAccessIterator | Random access iterator class |
| CRandomNumberGenerator | Mersenne Twister (MT19937) pseudo-random number generator |
| CReadoutOptions | A structure to hold global pixel readout options |
| CReadWriteMutex | Client-side interface to a PixInsight read/write mutex object |
| CRealTimePreview | Client-side interface to the Real-Time Preview system |
| CRealTimeProgressStatus | A status monitoring callback to provide progress feedback during long real-time preview generation procedures |
| CRecursivePointSurfaceSpline | Vector surface spline interpolation/approximation in two dimensions with recursive subspline generation |
| CRedundantMultiscaleTransform | Base class of all redundant multiscale transforms |
| ►CReferenceArray | Dynamic array of pointers to objects providing direct iteration and element access by reference |
| Cconst_iterator | Immutable ReferenceArray iterator |
| Citerator | Mutable ReferenceArray iterator |
| CReferenceCounter | Thread-safe reference counter for copy-on-write data structures |
| CReferenceSortedArray | Dynamic sorted array of pointers to objects providing direct iteration and element access by reference |
| CResample | Image resampling algorithm |
| CReverseBidirectionalIterator | Reverse bidirectional iterator |
| CReverseIterable | Reverse container adaptor |
| CReverseIteratorBase | Base class of reverse iterators |
| CReverseRandomAccessIterator | Reverse random access iterator |
| CRGBColorSystem | Colorimetrically defined RGB working color space |
| CRigidTransformation | Rigid geometric transformation |
| CRobustChauvenetRejection | Robust Chauvenet outlier rejection algorithm |
| CRotate180 | Rotates images by 180 degrees |
| CRotate90CCW | Rotates images by -90 degrees (counter-clockwise) |
| CRotate90CW | Rotates images by 90 degrees (clockwise) |
| CRotation | Image rotation algorithm |
| CSaveFileDialog | A modal dialog box to select a single file name for output |
| CScrollBox | Client-side interface to a PixInsight ScrollBox control |
| CSectionBar | A control to manage collapsible sections of interface windows and dialogs |
| CSelectionFilter | Morphological selection operator |
| CSeparableConvolution | Discrete two-dimensional separable convolution in the spatial domain |
| CSeparableFilter | Separable filter in two dimensions |
| CSeparableMedianFilter | A two-dimensional separable filter that approximates a median filter |
| CSerializableEphemerisData | Chebyshev polynomial expansion coefficients for ephemeris serialization |
| CSerializableEphemerisObjectData | A set of Chebyshev polynomial expansions and associated ancillary data for ephemeris serialization |
| CSettings | Persistent module settings |
| CSettingsData | Serializable, thread-safe settings data |
| CSexagesimalConversionOptions | Formatting options for string sexagesimal representations |
| CSHA1 | Implementation of the SHA-1 cryptographic hashing algorithm |
| CSHA224 | Implementation of the SHA-224 cryptographic hashing algorithm |
| CSHA256 | Implementation of the SHA-256 cryptographic hashing algorithm |
| CSHA384 | Implementation of the SHA-384 cryptographic hashing algorithm |
| CSHA512 | Implementation of the SHA-512 cryptographic hashing algorithm |
| CSharedPixelData | Handles transparent, type-independent allocation of local and shared pixel data blocks |
| CShepardInterpolation | Two-dimensional surface interpolation with the local Shepard method |
| CSimpleColorDialog | A simple color selection dialog |
| CSizer | Base class for PixInsight sizer objects |
| CSlider | Client-side interface to a PixInsight Slider control |
| CSortedArray | Generic dynamic sorted array |
| CSourceCodeError | Base class for exceptions thrown by source code interpreters |
| CSphericalRotation | Rotation in spherical coordinates |
| CSpinBox | Client-side interface to a PixInsight SpinBox control |
| CSpinStatus | A status monitoring callback that shows a spinning character animation on the processing console |
| CSplineWorldTransformation | Surface spline world coordinate transformation |
| CStandardAllocator | A block allocator class that uses the standard new and delete operators |
| CStandardDeleter | An object deleter that uses the standard delete operator |
| CStandardStatus | A status monitoring callback that sends progress information to the process console |
| CStarDatabaseFile | Point source and star catalog database files (XPSD format) |
| ►CStarDetector | Automatic star detection |
| CStar | Structure to hold the data of a detected star |
| CStarPosition | Positional data of a star |
| CStarStructure | Standard star structure |
| CStatusCallback | Provides status monitoring callback functions |
| CStatusMonitor | An asynchronous status monitoring system |
| CStereographicProjection | Stereographic projection system |
| CString | Unicode (UTF-16) string |
| CStructuringElement | Abstract base class of all PCL structuring elements |
| CSurfacePolynomial | Two-dimensional interpolating/approximating surface polynomial |
| CSurfaceSimplifier | Shape-preserving simplification of 2-D surfaces |
| ►CSurfaceSpline | Two-dimensional interpolating/approximating surface spline |
| CNodeData | Auxiliary structure for data sanitization |
| CSurfaceSplineBase | Base class of two-dimensional surface splines |
| CSVD | Singular value decomposition algorithm for Matrix and Vector objects |
| CSVG | Scalable Vector Graphics generation |
| CTabBox | Client-side interface to a PixInsight TabBox control |
| CTextBox | Client-side interface to a PixInsight TextBox control |
| ►CThread | Client-side interface to a PixInsight thread |
| CPerformanceAnalysisData | Working parameters for performance analysis thread optimization |
| CThreeWayStructure | Standard three-way structure |
| CThresholdedTransformation | Thresholded image transformation |
| CTimePoint | An instant in any timescale |
| CTimer | Client-side interface to a PixInsight Timer object |
| CToolButton | Client-side interface to a PixInsight ToolButton control |
| CTranslation | Image translation algorithm |
| ►CTreeBox | Client-side interface to a PixInsight TreeBox control |
| CNode | Client-side interface to a PixInsight TreeBox node |
| CTwoSidedEstimate | Two-sided descriptive statistical estimate |
| CUInt16PixelTraits | 16-bit unsigned integer pixel traits |
| CUInt20PixelTraits | 20-bit unsigned integer pixel traits |
| CUInt24PixelTraits | 24-bit unsigned integer pixel traits |
| CUInt32PixelTraits | 32-bit unsigned integer pixel traits |
| CUInt8PixelTraits | 8-bit unsigned integer pixel traits |
| CUIObject | Root base class for all user interface objects |
| CUnidimensionalInterpolation | A generic interface to one-dimensional interpolation algorithms |
| CUniqueFileChecks | A simple POD structure to hold file uniqueness and overwrite verification results |
| CUnixSignalException | A UNIX synchronous signal handler that throws C++ exceptions |
| CVariableShapeFilter | A kernel filter with variable kurtosis |
| CVariant | Acts like a union to store instances of different data types |
| CVectorGraphics | Client-side interface to a PixInsight vector graphics context |
| CVersion | Provides PCL version numbers |
| CVerticalMirror | Mirrors images vertically |
| CVerticalSizer | Client-side interface to a PixInsight vertical sizer |
| CVerticalSlider | Vertical slider control |
| CView | High-level interface to a PixInsight view object |
| CViewList | Client-side interface to a PixInsight ViewList object |
| CViewSelectionDialog | A simple dialog box to select an existing view |
| CWaveletFilter | Abstract base class of all orthogonal wavelet filters |
| CWCSKeywords | A structure for management of WCS FITS header keywords and associated image properties |
| CWebView | Client-side interface to a PixInsight WebView control |
| CWin32Exception | A Win32 structured exception handler that throws C++ exceptions |
| CWinsorizedSigmaClippingRejection | Winsorized sigma clipping outlier rejection algorithm |
| CWorldTransformation | Abstract base class of world coordinate transformations |
| CXISF | Utility functions, data and constants for XISF support |
| CXISFFileSignature | XISF monolithic file signature |
| CXISFLogHandler | XISF stream message logger |
| CXISFOptions | XISF-specific file options |
| CXISFReader | XISF input file stream |
| CXISFWriter | XISF output file stream |
| CXML | Utility functions and data for XML document parsing and generation |
| CXMLAttribute | XML element attribute |
| CXMLAttributeList | Dynamic list of XML element attributes |
| CXMLCDATA | XML CDATA section |
| CXMLComment | XML comment section |
| CXMLComponent | Root base class of all XML document components |
| CXMLDeclaration | XML declaration |
| CXMLDocTypeDeclaration | XML DOCTYPE declaration |
| CXMLDocument | XML document parsing and generation |
| CXMLElement | XML element |
| CXMLElementFilter | A functional class for filtering XML elements |
| CXMLNode | Abstract base class of all XML document node classes |
| CXMLNodeLocation | Source code location of a parsed XML document node |
| CXMLParseError | XML parsing error with automatic text location information generation |
| CXMLProcessingInstructions | XML processing instructions |
| CXMLText | XML text block |
| CXMLUnknownElement | Unsupported or invalid XML element |
| CXoRoShiRo1024ss | Implementation of the xoroshiro1024** pseudo-random number generator |
| CXorShift1024 | Implementation of the XorShift1024* pseudo-random number generator |
| CXoShiRo256ss | Implementation of the xoshiro256** pseudo-random number generator |
| CXoShiRoBase | Base class of xoshiro and xoroshiro pseudo-random number generators |
| ►CXPSD | Base class of point source database implementations |
| CMetadata | Metadata items available in point source database files |
| CSearchData | Data items and parameters for catalog search operations |
| CSearchDataBase | Parameters and output instrumentation data for catalog search operations |
| CStatistics | Structural and statistical data about an XPSD database file |
| CZenithalEqualAreaProjection | Zenithal equal-area projection system |
| CZenithalProjectionBase | Base class of zenithal projection systems |
| CZLibCompression | Implementation of the ZLib/Deflate compression algorithm |
| CZstdCompression | Implementation of the Zstandard compression algorithm |
1.9.1 
