Using comtypes.client to get a COM link to Photoshop… working with objects and actions works great except I have no idea how to access photoshop’s constants. Has anyone done this?
Here’s a look down face in anticipation. :lookdown:
I have no idea if it’s the same for Photoshop, but using Excel you can do it like this:
import win32com.client as win32
psApp = win32.Dispatch('Photoshop.Application')
win32.constants.<constantNameHere>
Stev
I made this from the Ps scripting doc of CS5.5
class PsConstants :
class PsAdjustmentReference :
psRelative = 1
psAbsolute = 2
class PsAnchorPosition :
psTopLeft = 1
psTopCenter = 2
psTopRight = 3
psMiddleLeft = 4
psMiddleCenter = 5
psMiddleRight = 6
psBottomLeft = 7
psBottomCenter = 8
psBottomRight = 9
class PsAntiAlias :
psNoAntialias = 1
psSharp = 2
psCrisp = 3
psStrong = 4
psSmooth = 5
class PsAutoKernType :
psManual = 1
psMetrics = 2
psOptical = 3
class PsBatchDestinationType :
psNoDestination = 1
psSaveAndClose = 2
psFolder = 3
class PsBitmapConversionType :
psHalfThreshold = 1
psPatternDither = 2
psDiffusionDither = 3
psHalftoneScreen = 4
psCustomPattern = 5
class PsBitmapHalfToneType :
psHalftoneRound = 1
psHalftoneDiamond = 2
psHalftoneEllipse = 3
psHalftoneLine = 4
psHalftoneSquare = 5
psHalftoneCross = 6
class PsBitsPerChannelType :
psDocument1Bit = 1
psDocument8Bits = 8
psDocument16Bits = 16
psDocument32Bit = 32
psPassThrough = 1
psNormalBlend = 2
psDissolve = 3
psDarken = 4
psMultiply = 5
psColorBurn = 6
psLinearBurn = 7
psLighten = 8
psScreen = 9
psColorDodge = 10
psLinearDodge = 11
psOverlay = 12
psSoftLight = 13
psHardLight = 14
psVividLight = 15
psLinearLight = 16
psPinLight = 17
psDifference = 18
psExclusion = 19
psHue = 20
psSaturationBlend = 21
psColorBlend = 22
psLuminosity = 23
psHardMix = 26
psLighterColor = 27
psDarkerColor = 28
psSubtract = 29
psDivid = 30
class PsBMPDepthType :
psBMP1Bit = 1
psBMP4Bits = 4
psBMP8Bits = 8
psBMP16Bits = 16
psBMP24Bits = 24
psBMP32Bits = 32
psBMP_X1R5G5B5 = 60
psBMP_A1R5G5B5 = 61
psBMP_R5G6B5 = 62
psBMP_X4R4G4B4 = 63
psBMP_A4R4G4B4 = 64
psBMP_R8G8B8 = 65
psBMP_X8R8G8B8 = 66
psBMP_A8R8G8B8 = 67
class PsByteOrder :
psIBMByteOrder = 1
psMacOSByteOrder = 2
class PsCameraRAWSettingsType :
psCameraDefault = 0
psSelectedImage = 1
psCustomSettings = 2
class PsCameraRAWSize :
psMinimumCameraRAW = 0
psSmallCameraRAW = 1
psMediumCameraRAW = 2
psLargeCameraRAW = 3
psExtraLargeCameraRAW = 4
psMaximumCameraRAW = 5
psNormalCase = 1
psAllCaps = 2
psSmallCaps = 3
class PsChangeMode :
psConvertToGrayscale = 1
psConvertToRGB = 2
psConvertToCMYK = 3
psConvertToLab = 4
psConvertToBitmap = 5
psConvertToIndexedColor = 6
psConvertToMultiChannel = 7
class PsChannelType :
psComponentChannel = 1
psMaskedAreaAlphaChannel = 2
psSelectedAreaAlphaChannel = 3
psSpotColorChannel = 4
class PsColorBlendMode :
psNormalBlendColor = 2
psDissolveBlend = 3
psDarkenBlend = 4
psMultiplyBlend = 5
psColorBurnBlend = 6
psLinearBurnBlend = 7
psLightenBlend = 8
psScreenBlend = 9
psColorDodgeBlend = 10
psLinearDodgeBlend = 11
psOverlayBlend = 12
psSoftLightBlend = 13
psHardLightBlend = 14
psVividLightBlend = 15
psLinearLightBlend = 16
psPinLightBlend = 17
psDifferenceBlend = 18
psExclusionBlend = 19
psHueBlend = 20
psSaturationBlendColo = 21
psColorBlendMode = 22
psLuminosityBlen = 23
psBehindBlend = 24
psClearBlend = 25
psHardMixBlend = 26
psSubtract = 27
psDivide = 28
class PsColorModel :
psGrayscaleModel = 1
psRGBModel = 2
psCMYKModel = 3
psLabModel = 4
psHSBModel = 5
psNoModel = 50
class PsColorPicker :
psAdobeColorPicker = 1
psAppleColorPicker = 2
psWindowsColorPicker = 3
psPlugInColorPicker = 4
class PsColorProfileType :
psNo = 1
psWorking = 2
psCustom = 3
class PsColorReductionType :
psPerceptualReduction = 0
psSelective = 1
psAdaptive = 2
psRestrictive = 3
psCustomReduction = 4
psBlackWhiteReduction = 5
psSFWGrayscale = 6
psMacintoshColors = 7
psWindowsColors = 8
class PsColorSpaceType :
psAdobeRGB = 0
psColorMatchRGB = 1
psProPhotoRGB = 2
psSRGB = 3
class PsCopyrightedType :
psCopyrightedWork = 1
psPublicDomain = 2
psUnmarked = 3
class PsCreateFields :
psDuplication = 1
psInterpolation = 2
class PsCropToType :
psBoundingBox = 0
psMediaBox = 1
psCropBox = 2
psBleedBox = 3
psTrimBox = 4
psArtBox = 5
class PsDCSType :
psNoComposite = 1
psGrayscaleComposite = 2
psColorComposite = 3
class PsDepthMapSource :
psNoSource = 1
psTransparencyChannel = 2
psLayerMask = 3
psImageHighlight = 4
class PsDescValueType :
psIntegerType = 1
psDoubleType = 2
psUnitDoubleType = 3
psStringType = 4
psBooleanType = 5
psListType = 6
psObjectType = 7
psEnumeratedType = 8
psReferenceType = 9
psClassType = 10
psAliasType = 11
psRawType = 12
class PsDialogModes :
psDisplayAllDialogs = 1
psDisplayErrorDialogs = 2
psDisplayNoDialogs = 3
class PsDirection :
psHorizontal = 1
psVertical = 2
class PsDisplacementMapType :
psStretchToFit = 1
psTile = 2
class PsDitherType :
psNoDither = 1
psDiffusion = 2
psPattern = 3
psNoise = 4
class PsDocumentFill :
psWhite = 1
psBackgroundColor = 2
psTransparent = 3
class PsDocumentMode :
psGrayscale = 1
psRGB = 2
psCMYK = 3
psLab = 4
psBitmap = 5
psIndexedColor = 6
psMultiChannel = 7
psDuotone = 8
class PsEditLogItemsType :
psSessionOnly = 1
psConcise = 2
psDetailed = 3
class PsElementPlacement :
psPlaceInside = 0
psPlaceAtBeginning = 1
psPlaceAtEnd = 2
psPlaceBefore = 3
psPlaceAfter = 4
class PsEliminateFields :
psOddFields = 1
psEvenFields = 2
class PsExportType :
psIllustratorPaths = 1
psSaveForWeb = 2
class PsExtensionType :
psLowercase = 2
psUppercase = 3
class PsFileNamingType :
psDocumentNameMixed = 1
psDocumentNameLower = 2
psDocumentNameUpper = 3
psSerialNumber1 = 4
psSerialNumber2 = 5
psSerialNumber3 = 6
psSerialNumber4 = 7
psSerialLetterLower = 8
psSerialLetterUpper = 9
psMmddyy = 10
psMmdd = 11
psYyyymmdd = 12
psYymmdd = 13
psYyddmm = 14
psDdmmyy = 15
psDdmm = 16
psExtensionLower = 17
psExtensionUpper = 18
psFontPreviewNone = 0
psFontPreviewSmall = 1
psFontPreviewMedium = 2
psFontPreviewLarge = 3
class PsForcedColors :
psNoForced = 1
psBlackWhite = 2
psPrimaries = 3
psWeb = 4
class PsFormatOptionsType :
psStandardBaseline = 1
psOptimizedBaseline = 2
psProgressive = 3
class PsGalleryConstrainType :
psConstrainWidth = 1
psConstrainHeight = 2
psConstrainBoth = 3
class PsGalleryFontType :
psArial = 1
psCourierNew = 2
psHelvetica = 3
psTimesNewRoman = 4
class PsGallerySecurityTextPositionType :
psCentered = 1
psUpperLeft = 2
psLowerLeft = 3
psUpperRight = 4
psLowerRight = 5
class PsGallerySecurityTextRotateType :
psZero = 1
psClockwise45 = 2
psClockwise90 = 3
psCounterClockwise45 = 4
psCounterClockwise90 = 5
class PsGallerySecurityType :
psNoSecurity = 1
psCustomSecurityText = 2
psFilename = 3
psCopyright = 4
psCaption = 5
psCredit = 6
psTitle = 7
class PsGalleryThumbSizeType :
psSmall = 1
psMedium = 2
psLarge = 3
psCustomThumbnail = 4
class PsGeometry :
psTriangle = 0
psPentagon = 1
psHexagon = 2
psSquareGeometry = 3
psHeptagon = 4
psOctagon = 5
class PsGridLineStyle :
psGridSolidLine = 1
psGridDashedLine = 2
psGridDottedLine = 3
class PsGridSize :
psNoGrid = 1
psSmallGrid = 2
psMediumGrid = 3
psLargeGrid = 4
class PsGuideLineStyle :
psGuideSolidLine = 1
psGuideDashedLine = 2
class PsIllustratorPathType :
psDocumentBounds = 1
psAllPaths = 2
psNamedPath = 3
class PsIntent :
psPerceptual = 1
psSaturation = 2
psRelativeColorimetric = 3
psAbsoluteColorimetric = 4
class PsJavaScriptExecutionMode :
psNeverShowDebugger = 1
psDebuggerOnError = 2
psBeforeRunning = 3
class PsJustification :
psLeft = 1
psCenter = 2
psRight = 3
psLeftJustified = 4
psCenterJustified = 5
psRightJustified = 6
psFullyJustified = 7
class PsLanguage :
psEnglishUSA = 1
psEnglishUK = 2
psFrench = 3
psCanadianFrench = 4
psFinnish = 5
psGerman = 6
psOldGerman = 7
psSwissGerman = 8
psItalian = 9
psNorwegian = 10
psNynorskNorwegian = 11
psPortuguese = 12
psBrazillianPortuguese = 13
psSpanish = 14
psSwedish = 15
psDutch = 16
psDanish = 17
class PsLayerCompressionType :
psRLELayerCompression = 1
psZIPLayerCompression = 2
class PsLayerKind :
psNormalLayer = 1
psTextLayer = 2
psSolidFillLayer = 3
psGradientFillLayer = 4
psPatternfillLayer = 5
psLevelsLayer = 6
psCurvesLayer = 7
psColorBalanceLayer = 8
psBrightnessContrastLayer = 9
psHueSaturationLayer = 10
psSelectiveColorLayer = 11
psChannelMixerLayer = 12
psGradientMapLayer = 13
psInversionLayer = 14
psThresholdLayer = 15
psPosterizeLayer = 16
psSmartObjectLayer = 17
psPhotoFilterLayer = 18
psExposureLayer = 19
psLayer3D = 20
psVideoLayer = 21
psBlackAndWhiteLayer = 22
psVibrance = 23
class PsLayerType :
psArtLayer = 1
psLayerSet = 2
class PsLensType :
psZoomLens = 1
psPrime35 = 2
psPrime105 = 3
psMoviePrime = 5
class PsMagnificationType :
psActualSize = 0
psFitPage = 1
class PsMatteType :
psNoMatte = 1
psForegroundColorMatte = 2
psBackgroundColorMatte = 3
psWhiteMatte = 4
psBlackMatte = 5
psSemiGra = 6
psNetscapeGrayMatte = 7
class PsMeasurementRange :
psAllMeasurements = 1
psActiveMeasurements = 2
class PsMeasurementSource :
psMeasureSelection = 1
psMeasureCountTool = 2
psMeasureRulerTool = 3
class PsNewDocumentMode :
psNewGray = 1
psNewRGB = 2
psNewCMYK = 3
psNewLab = 4
psNewBitmap = 5
class PsNoiseDistribution :
psUniformNoise = 1
psGaussianNoise = 2
class PsOffsetUndefinedAreas :
psOffsetSetToLayerFill = 1
psOffsetWraparound = 2
psOffsetRepeatEdgePixels = 3
class PsOpenDocumentMode :
psOpenGray = 1
psOpenRGB = 2
psOpenCMYK = 3
psOpenLab = 4
class PsOpenDocumentType :
psPhotoshopOpen = 1
psBMPOpen = 2
psCompuServeGIFOpen = 3
psPhotoshopEPSOpen = 4
psFilmstripOpen = 5
psJPEGOpe = 6
psPCXOpen = 7
psPhotoshopPDFOpen = 8
psPhotoCDOpen = 9
psPICTFileFormatOpen = 10
psPICTResourceFormatOpen = 11
psPixarOpen = 12
psPNGOpen = 13
psRawOpen = 14
psScitexCTOpen = 15
psTargaOpen = 16
psTIFFOpen = 17
psPhotoshopDCS_1Open = 18
psPhotoshopDCS_2Open = 19
psPDFOpen = 21
psEPSOpen = 22
psEPSPICTPreviewOpen = 23
psEPSTIFFPreviewOpen = 24
psAliasPIXOpen = 25
psElectricImageOpen = 26
psPortableBitmapOpen = 27
psWavefrontRLAOpen = 28
psSGIRGBOpen = 29
psSoftImageOpen = 30
psWirelessBitmapOpen = 31
psCameraRAWOpen = 32
psDICOMOpen = 33
class PsOperatingSystem :
psOS2 = 1
psWindows = 2
class PsOrientation :
psLandscape = 1
psPortrait = 2
class PsOtherPaintingCursors :
psStandardOther = 1
psPreciseOther = 2
class PsPaintingCursors :
psStandard = 1
psPrecise = 2
psBrushsize = 3
class PsPaletteType :
psExact = 1
psMacOSPalette = 2
psWindowsPalett = 3
psWebPalette = 4
psUniform = 5
psLocalPerceptual = 6
psLocalSelective = 7
psLocalAdaptive = 8
psMasterPerceptual = 9
psMasterSelective = 10
psMasterAdaptive = 11
psPreviousPalette = 12
class PsPathKind :
psNormalPath = 1
psClippingPath = 2
psWorkPath = 3
psVectorMask = 4
psTextMask = 5
class PsPDFCompatibilityType :
psPDF1 = 1
psPDF1 = 2
psPDF1 = 3
psPDF1 = 4
class PsPDFEncoding :
psPDFNon = 0
psPDFZip = 1
psPDFJPEG = 2
psPDFPDFZip4Bi = 3
psPDFJPEGHIG = 4
psPDFJPEGMEDHIG = 5
psPDFJPEGME = 6
psPDFJPEGMEDLO = 7
psPDFJPEGLO = 8
psPDFJPEG2000High = 9
psPDFJPEG2000MEDHIGH = 10
psPDFJPEG2000MED = 11
psPDFJPEG2000MEDLOW = 12
psPDFJPEG2000LOW = 13
psPDFJPEG2000LOSSLESS = 14
class PsPDFResampleType :
psNoResampl = 0
psPDFAverag = 1
psPDFSubSample = 2
psPDFBicubi = 3
class PsPDFStandardType :
psNoStandar = 0
psPDFX1A200 = 1
psPDFX1A200 = 2
psPDFX3200 = 3
psPDFX32003 = 4
class PsPhotoCDColorSpace :
psRGB8 = 1
psRGB16 = 2
psLab8 = 3
psLab16 = 4
class PsPhotoCDSize :
psMinimumPhotoCD = 1
psSmallPhotoCD = 2
psMediumPhotoCD = 3
psLargePhotoCD = 4
psExtralargePhotoCD = 5
psMaximumPhotoCD = 6
class PsPICTBitsPerPixels :
psPICTTwoBits = 2
psPICTFourBits = 4
psPICTEightBits = 8
psPICTSixteenBits = 16
psPICTThirtyTwoBits = 32
class PsPICTCompression :
psNoPICTCompression = 1
psJPEGLowPICT = 2
psJPEGMediumPICT = 4
psJPEGHighPICT = 5
psJPEGMaximumPICT = 6
class PsPicturePackageTextType :
psNoText = 1
psUserText = 2
psFilenameText = 3
psCopyrightText = 4
psCaptionText = 5
psCreditText = 6
psOriginText = 7
class PsPointKind :
psSmoothPoint = 1
psCornerPoint = 2
class PsPointType :
psPostScriptPoints = 1
psTraditionalPoints = 2
class PsPolarConversionType :
psRectangularToPolar = 1
psPolarToRectangular = 2
class PsPreviewType :
psNoPreview = 1
psMonochromeTIFF = 2
psEightbitTIFF = 3
class PsPurgeTarget :
psUndoCaches = 1
psHistoryCaches = 2
psClipboardCache = 3
psAllCaches = 4
class PsQueryStateType :
psAlways = 1
psAsk = 2
psNever = 3
class PsRadialBlurMethod :
psSpin = 1
psZoom = 2
class PsRadialBlurQuality :
psRadialBlurDraft = 1
psRadialBlurGood = 2
psRadialBlurBest = 3
class PsRasterizeType :
psTextContents = 1
psShape = 2
psFillContent = 3
psLayerClippingPath = 4
psEntireLayer = 5
psLinkedLayers = 6
class PsReferenceFormType :
psReferenceNameType = 1
psReferenceIndexType = 2
psReferenceIdentifierType = 3
psReferenceOffsetType = 4
psReferenceEnumeratedType = 5
psReferencePropertyType = 6
psReferenceClassType = 7
class PsResampleMethod :
psNoResampling = 1
psNearestNeighbor = 2
psBilinear = 3
psBicubic = 4
psBicubicSharper = 5
psBicubicSmoother = 6
class PsRippleSize :
psSmallRipple = 1
psMediumRipple = 2
psLargeRipple = 3
class PsSaveBehavior :
psNeverSave = 1
psAlwaysSave = 2
psAskWhenSaving = 3
class PsSaveDocumentType :
psPhotoshopSave = 1
psBMPSave = 2
psCompuServeGIFSave = 3
psPhotoshopEPSSave = 4
psJPEGSave = 6
psPCXSave = 7
psPhotoshopPDFSave = 8
psPICTFileFormatSave = 10
psPixarSave = 12
psPNGSave = 13
psRawSave = 14
psScitexCTSave = 15
psTargaSave = 16
psTIFFSave = 17
psPhotoshopDCS_1Save = 18
psPhotoshopDCS_2Save = 19
psAliasPIXSave = 25
psElectricImageSave = 26
psPortableBitmapSave = 27
psWavefrontRLASave = 28
psSGIRGBSave = 29
psSoftImageSave = 30
psWirelessBitmapSave = 31
class PsSaveEncoding :
psBinary = 1
psJPEGLow = 2
psAscii = 3
psJPEGMedium = 4
psJPEGHigh = 5
psJPEGMaximum = 6
class PsSaveLogItemsType :
psMetadata = 1
psLogFile = 2
psLogFileAndMetadata = 3
class PsSaveOptions :
psSaveChanges = 1
psDoNotSaveChanges = 2
psPromptToSaveChanges = 3
class PsSelectionType :
psReplaceSelection = 1
psExtendSelection = 2
psDiminishSelection = 3
psIntersectSelection = 4
class PsShapeOperation :
psShapeAdd = 1
psShapeXOR = 2
psShapeIntersect = 3
psShapeSubtract = 4
class PsSmartBlurMode :
psSmartBlurNormal = 1
psSmartBlurEdgeOnly = 2
psSmartBlurOverlayEdge = 3
class PsSmartBlurQuality :
psSmartBlurLow = 1
psSmartBlurMedium = 2
psSmartBlurHigh = 3
class PsSourceSpaceType :
psDocumentSpace = 1
psProofSpace = 2
class PsSpherizeMode :
psNormalSpherize = 1
psHorizontalSpherize = 2
psVerticalSpherize = 3
class PsStrikeThruType :
psStrikeOff = 1
psStrikeHeight = 2
psStrikeBox = 3
class PsStrokeLocation :
psInsideStroke = 1
psCenterStroke = 2
psOutsideStroke = 3
class PsTargaBitsPerPixels :
psTarga16Bits = 16
psTarga24Bits = 24
psTarga32Bits = 32
class PsTextComposer :
psAdobeSingleLine = 1
psAdobeEveryLine = 2
class PsTextType :
psPointText = 1
psParagraphText = 2
class PsTextureType :
psBlocksTexture = 1
psCanvasTexture = 2
psFrostedTexture = 3
psTinyLensTexture = 4
psTextureFile = 5
class PsTIFFEncodingType :
psNoTIFFCompression = 1
psTiffLZW = 2
psTiffJPEG = 3
psTiffZIP = 4
class PsToolType :
psPencil = 1
psBrush = 2
psEraser = 3
psBackgroundEraser = 4
psCloneStamp = 5
psPatternStamp = 6
psHealingBrush = 7
psHistoryBrush = 8
psArtHistoryBrush = 9
psSmudge = 10
psBlur = 11
psSharpen = 12
psDodge = 13
psBurn = 14
psSponge = 15
psColorReplacementTool = 16
class PsTransitionType :
psBlindsHorizontal = 1
psBlindsVertical = 2
psDissolveTransition = 3
psBoxIn = 4
psBoxOut = 5
psGlitterDown = 6
psGlitterRight = 7
psGlitterRightDown = 8
psNoTransition = 9
psRandom = 10
psSplitHorizontalIn = 11
psSplitHorizontalOut = 12
psSplitVerticalIn = 13
psSplitVerticalOut = 14
psWipeDown = 15
psWipeLleft = 16
psWipeRight = 17
psWipeUp = 18
class PsTrimType :
psTransparentPixels = 0
psTopLeftPixel = 1
psBottomRightPixe = 9
class PsTypeUnits :
psTypePixels = 1
psTypeMM = 4
psTypePoints = 5
class PsUndefinedAreas :
psWrapAround = 1
psRepeatEdgePixels = 2
class PsUnderlineType :
psUnderlineOff = 1
psUnderlineRight = 2
psUnderlineLeft = 3
class PsUnits :
psPixels = 1
psInches = 2
psCM = 3
psMM = 4
psPoints = 5
psPicas = 6
psPercent = 7
class PsUrgency :
psNone = 0
psLow = 1
psTwo = 2
psThree = 3
psFour = 4
psNormal = 5
psSix = 6
psSeven = 7
psHigh = 8
class PsWarpStyle :
psNone = 1
psArc = 2
psArcLower = 3
psArcUpper = 4
psArch = 5
psBulge = 6
psShellLower = 7
psShellUpper = 8
psFlag = 9
psWave = 10
psFish = 11
psRise = 12
psFishEye = 13
psInflate = 14
psSqueeze = 15
psTwist = 16
class PsWaveType :
psSine = 1
psTriangular = 2
psSquare = 3
class PsWhiteBalanceType :
psAsShot = 0
psAuto = 1
psDaylight = 2
psCloudy = 3
psShade = 4
psTungsten = 5
psFluorescent = 6
psFlash = 7
psCustomCameraSettings = 8
class PsZigZagType :
psAroundCenter = 1
psOutFromCenter = 2
psPondRipples = 3
You can use it like this :
import PsConstants
blendMode = PsConstants.PsColorBlendMode.psOverlayBlend
The big Advantage over the win32 method is that your IDE will be able to auto-complete 
1 Like
Ooops, my bad. It needs to be this:
import win32com.client as win32
win32.gencache.EnsureDispatch('Photoshop.Application')
print win32.constants.psRelative
print win32.constants.psSaveAndClose
print win32.constants.psSoftLight
Using nezus’ code to enable Auto Complete is really nice. Definitely going to save this snippet, thanks for posting.
Stev
This helped a ton. Thank you both!
If youre using cs 5.5 and would rather not use COM, give the tcp connection a try. One less big binary to maintain and distrubute 
you can event subscribe to user events