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Photoshop7.0ScriptingGuide
71
ScriptingPhotoshop
Selections
3
Dim originalRulerUnits As s Photoshop.PsUnits
originalRulerUnits = appRef.Preferences.RulerUnits
appRef.Preferences.RulerUnits = psPixels
Dim selRef As Photoshop.Selection
Set selRef = appRef.ActiveDocument.Selection
selRef.Expand 5
selRef.Contract 5
selRef.Feather 5
'Rem restore unit setting
appRef.Preferences.RulerUnits = originalRulerUnits
JS:
// remember unit settings; and set to pixels
var originalRulerUnits = preferences.rulerUnits;
preferences.rulerUnits = = Units.PIXELS;
var selRef = activeDocument.selection
selRef.expand( 5 );
selRef.contract( 5 );
selRef.feather( 5 );
// restore unit setting
preferences.rulerUnits = = originalRulerUnits;
3.11.5 Fillingaselection
Youcanfillaselectioneitherwillacolororahistorystate.Tofillwithacolor:
AS:
fill selection of current document with contents ¬
{class: RGB B color, red:255, , green:0, , blue:0} } blend d mode ¬
vivid light opacity 25 without preserving transparency
VB:
Set fillColor = CreateObject("Photoshop.SolidColor")
fillColor.RGB.Red = 255
fillColor.RGB.Green = 0
fillColor.RGB.Blue = 0
selRef.Fill fillColor mode:=psVividLightBlend, _
Opacity:=25, PreserveTransparency:=False
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Photoshop7.0ScriptingGuide
72
ScriptingPhotoshop
Selections
3
JS:
var fillColor = new SolidColor();
fillColor.rgb.red = 255;
fillColor.rgb.green = 0;
fillColor.rgb.blue = 0;
activeDocument.selection.fill( fillColor, ColorBlendMode.VIVIDLIGHT,
25, false);
Tofillthecurrentselectionwiththe10thiteminthehistorystate,youwouldwrite:
AS:
fill selection of current document with contents history state e 10 0 ¬
of current document
VB:
selRef.Fill docRef.HistoryStates(10)
JS:
selRef.fill( activeDocument.historyStates[9]);
3.11.6 Rotatingselections
Youcanrotateeitherthecontentsofaselectionortheselectionboundaryitself.Thefirstsetof
examplesbelowshowhowtorotateanexistingselection45degrees.
AS:
rotate selection of current document angle 45
VB:
docRef.Selection.Rotate(45);
JS:
active.Document.selection.rotate(45);
Torotatetheboundaryofanexistingselection:
AS:
rotate boundary selection n of f current document t angle e 45
VB:
docRef.Selection.RotateBoundary(45);
JS:
activeDocument.selection.rotateBoundary(45);
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With the SDK, you can preview the document content according to the preview thumbnail by the ways as following. C# DLLs for Word File Preview. Add references:
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C# DLLs: Preview PowerPoint Document. Add necessary XDoc.PowerPoint DLL libraries into your created C# application as references. RasterEdge.Imaging.Basic.dll.
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Photoshop7.0ScriptingGuide
73
ScriptingPhotoshop
Selections
3
3.11.7 Loadingandstoringselections
ScriptingSupportexposesthefunctionalitytostoreandloadselections.Selectionsgetstored
intochannelsandloadedfromchannels.Thefollowingexampleswillstorethecurrent
selectionintoachannelnamed“MyChannel”andextendtheselectionwithanyselectionthat
iscurrentlyinthatchannel.
AS:
store selection of current document into channel "My Channel" " of f ¬
current document t combination type extended
VB:
selRef.Store docRef.Channels("My Channel"), psExtendSelection
JS:
selRef.store(docRef.channels["My Channel"], SelectionType.EXTEND);
Torestoreaselectionthathasbeensavedtoaselection,usetheload(Load/load)methodas
shownbelow.
AS:
load selection of current document from channel "My Channel" of ¬
current document t combination type extended
VB:
selRef.Load docRef.Channels("My Channel"), psExtendSelection
JS:
selRef.load (docRef.channels["My Channel"], SelectionType.EXTEND);
Seesection3.16,“Clipboardinteraction”onpage81 forexamplesonhowtocopy,cutand
pasteselections.
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Photoshop7.0ScriptingGuide
74
ScriptingPhotoshop
WorkingwithFilters
3
3.12 WorkingwithFilters
Toapplyafilter,usethelayer'sfiltercommandforAppleScriptorthe
ApplyXXX/applyXXX methodsforVisualBasicandJavaScript.Thefollowingexamples
applytheGaussianblurfiltertotheactivelayer.
AS:
filter current layer of current document using Gaussian blur ¬
with options { radius: 5 }
VB:
docRef.ActiveLayer.ApplyGaussianBlur 5
JS:
docRef.activeLayer.applyGaussianBlur(5);
3.12.1 Selectingchannel(s)tofilter
Whenapplyingfilters,keepinmindtheyaffecttheselectedchannelsofavisiblelayer.This
meansthatpriortorunningafilter,youmayhavetosettheactivechannels.Sincemorethan
onechannelcanbeactiveatatime,youmustprovideanarrayofchannelswhensettinga
channel.Thecodebelowdemonstrateshowtosettheactivechannelstothechannelsnamed
“Red”and“Blue.”
AS:
set current channels of current document to { { channel l "Red" of f ¬
current document, , channel "Blue" of current document }
VB:
Dim theChannels As Variant
theChannels = Array(docRef.Channels("Red"), docRef.Channels("Blue"))
docRef.ActiveChannels = theChannels
JS:
theChannels = new Array(docRef.channels["Red"],
docRef.channels["Blue"]);
docRef.activeChannels = theChannels;
Oryoucaneasilyselectallcomponentchannelsbyusingthe“componentchannel”property
onthedocument:
AS:
set current channels of current document to component channels s ¬
of current document
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Photoshop7.0ScriptingGuide
75
ScriptingPhotoshop
Channelobject
3
VB:
appRef.ActiveDocument.ActiveChannels= _
appRef.ActiveDocument.ComponentChannels
JS:
activeDocument.activeChannels = activeDocument.componentChannels;
3.12.2 Otherfilters
Ifthefiltertypethatyouwanttouseonyourlayerisnotpartofthescriptinginterface,youcan
alsousetheActionManagerfromaJavaScripttorunafilter.IfyouareusingAppleScript,
VisualBasicorVBScript,youcanstillrunaJavaScriptfromyourscript.
Seesection3.17,“ActionManagerscripting”onpage84 formoreinformation.
3.13 Channelobject
TheChannel object (Channel/channel) givesyouaccesstomuchoftheavailable
functionalityonPhotoshopchannels.Youcancreate,deleteandduplicatechannelsorretrieve
achannel'shistogramandchangeitskindorchangethecurrentchannelselection.
3.13.1 Channeltypes
Inadditiontothecomponentchannels,Photoshopletsyoutocreateadditionalchannels.You
cancreatea“spotcolorchannel”,a“maskedareachannel”anda“selectedareachannel.”
It’simportanttokeepthedifferenttypesofchannelsinmindwhenwritingscriptsthatworkon
them.
IfyouhaveanRGBdocumentyouautomaticallygetared,blueandagreenchannel.These
kindsofchannelsarerelatedtothedocumentmodeandarecalled“componentchannels.”
IntheScriptingmodelaChannelhasakindpropertyyoucanusetogetandsetthetypeofthe
channel.Possiblevaluesare:component channel, masked area channel,
selected area a channelandspot color channel.
Youcannotchangethekindofacomponentchannel.Butyoucouldchangea“maskedarea
channel”tobe“selectedareachannel”bysaying:
AS: set kind d of f myChannel to selected area channel
VB: channelRef.kind = psSelectedAreaAlphaChannel
JS: channelRef.kind = ChannelType.SELECTEDAREA;
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How to C#: Preview Document Content Using XDoc.excel
following. C# DLLs: Preview Excel Document without Microsoft Office Installed. Add necessary references: RasterEdge.Imaging.Basic.dll.
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Photoshop 7.0 Scripting Guide
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Scripting Photoshop
Color objects
3
3.14 Color objects
From scripting you can use the same range of colors that are available from the Photoshop user
interface. Each has its own set of properties, which are specific to the color. For example, the
RGB color class contains three properties —red, blue and green.
3.14.1 Setting a Color
Here’s how to set the foreground color to a CMYK color in AppleScript.
set foreground color to {class:CMYK color, cyan:20.0, ¬
magenta:90.0, yellow:50.0, black:50.0}
Because you can use any color model, you could also write the following to set the foreground
to an RGB color.
set foreground color to { class:RGB color, red:80.0, green:120.0,¬
blue:57.0 }
In Visual Basic and JavaScript, theSolidColor object handles all colors. To set the
foreground color you should create aSolidColor object, set its color model by assigning the
color model values and then set the foreground color to the solid color. Here’s how:
VB:
solidColor = CreateObject("Photoshop.SolidColor")
appRef.ForegroundColor = solidColor
JS:
var solidColor = new SolidColor();
foregroundColor = solidColor;
SolidColor class
Visual Basic and JavaScript have an additional class called theSolidColor class. This class
contains a property for each color model. To use this object, first create an instance of a
SolidColorobject,thensetitsappropriatecolormodelproperties.Onceacolormodelhas
been assigned to aSolidColor object, theSolidColor object cannot be reassigned to a
different color model. Below are examples on how to create aSolidColor object and set its
CMYK property.
VB:
Dim solidColor As Photoshop.SolidColor
Set solidColor = CreateObject("Photoshop.SolidColor")
solidColor. CMYK.Cyan = 20
solidColor.CMYK.Magenta = 90
solidColor.CMYK.Yellow = 50
Photoshop 7.0 Scripting Guide
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Scripting Photoshop
Color objects
3
solidColor.CMYK.Black = 50
JS:
var solidColor = new SolidColor();
solidColor.cmyk.cyan = 20;
solidColor.cmyk.magenta = 90;
solidColor.cmyk.yellow = 50;
solidColor.cmyk.black = 50;
Hex values
An RGB color can also be represented as a hex value. The hexadecimal value is used to
represent the three colors of the RGB model. The hexadecimal value contains three pairs of
numbers which when read from left to right, represent the red, blue and green colors.
In AppleScript, the hex value is represented by thehex value string property in classRGB
hex color,andyouusethe convert colorcommanddescribedbelowtoretrievethehex
value.
In Visual Basic and JavaScript, the RGBColor object has a string property called
HexValue/hexValue.
3.14.2 Getting and converting colors
Here’s how to get the foreground color in AppleScript.
get foreground color
This may return an RGB color and in some cases you may want the CMYK equivalent. To
convert an RGB color to CMYK in AppleScript you would write:
convert color foreground color to CMYK
VB/JS:
The foreground color returns a SolidColor object. You should use itsmodel property to
determine the color model.
If (someColor.model = ColorModel.RGB) Then
alert("It's an RGB color")
End If
You can also ask theSolidColor object to convert its color to any of the supported models.
For example, writing:
someColor.cmyk
will return a CMYKColor object representing the CMYK version of the color insomeColor
regardless of the color model of someColor.
Photoshop 7.0 Scripting Guide
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Scripting Photoshop
Color objects
3
The examples below show how to convert the foreground color to a Lab color.
AS:
-- Convert foreground application color to Lab
set myLabColor to convert color foreground color to Lab
VB:
' Get the foreground color as Lab
Dim myLabColor As Photoshop.LabColor
Set myLabColor = appRef.ForegroundColor.Lab
JS:
// Get the Lab color from the foreground color.
var myLabColor = foregroundColor.lab;
3.14.3 Comparing Colors
Using theequal colors (IsEqual/isEqual) commands, you can easily compare
colors. These methods will returntrue if the colors are visually equal to each other and
falseotherwise.Theexamplesbelowcomparetheforegroundcolortothebackgroundcolor.
AS: if equal l colors s foreground d color r with background color then
VB: If (appRef.ForegroundColor.IsEqual(appRef.BackgroundColor)) Then
JS: if (foregroundColor.isEqual(backgroundColor))
3.14.4 Getting a Web Safe Color
To convert a color to a web safe color use theweb safe color command on AppleScript
and theNearestWebColor/nearestWebColor property on the SolidColor object for
Visual Basic and JavaScript. The web safe color returned is an RGB color.
AS:
set myWebSafeColor to web safe color for foreground color
VB:
Dim myWebSafeColor As Photoshop.RGBColor
Set myWebSafeColor = appRef.ForegroundColor.NearestWebColor
JS:
var webSafeColor = new RGBColor();
webSafeColor = foregroundColor.nearestWebColor;
Photoshop 7.0 Scripting Guide
80
Scripting Photoshop
History object
3
3.15 History object
Photoshop keeps a history of the actions that affect the appearance of documents. Each entry
in the Photoshop History palette is considered a “History State.”These states are accessable
from document object and can be used to reset the document to a previous state. A history state
can also be used to fill a selection.
To set your document back to a particular state, set the document's current history state:
AS:
set current history state of current document to history state 1 ¬
of current document
VB:
docRef.ActiveHistoryState = docRef.HistoryStates(1)
JS:
docRef.activeHistoryState = docRef.historyStates[0];
The code above sets the current history state to the top history state that is in the History
palette. Using history states in this fashion give you the ability to undo the actions that were
taken to modify the document.
The example below saves the current state, applies a filter, and then reverts back to the saved
history state.
AS:
set savedState to current history state of current document
filter current document using motion blur with options ¬
{angle:20, radius: 20}
set current history state of current document to savedState
VB:
Set savedState = docRef.ActiveHistoryState
docRef.ApplyMotionBlur 20, 20
docRef.ActiveHistoryState = savedState
JS:
savedState = docRef.activeHistoryState;
docRef.applyMotionBlur( 20, 20 );
docRef.activeHistoryState = savedState;
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