1 Correct answer
Another route could be this function that lets you specify inputWhite, inputBlack, gamma, outputWhite, outputBlack
...setLevelAdj = function(inBlack, inWhite, gamma, outBlack, outWhite) {
var d, d1, d2, l, l1, l2, r, r1, s2t;
if (outBlack == null) {
outBlack = 0;
}
if (outWhite == null) {
outWhite = 255;
}
s2t = function(s) {
return app.stringIDToTypeID(s);
};
d = new ActionDescriptor();
r = new ActionReference();
r.putEnumerated(s2t('adjustmentLayer'), s2t('ordinal'), s2t('target
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I find it hard to find out many things about many thing when I come to Adobe Scripting. Adobe does make Changes to Photoshop Script. Adobe added bugs of fail to add support for new features like new interpolation methods setting the brake existing Scripts. And I see users in here use new features. You seem to need to manually compare Adobe JavaScript references manual to see what has been added. Compare CC 2014 with CC 2015 JavaScript reference for example Application methods
I also saw some code the Tom Ruark posted using doProcess in this forum. So I tried it in CC 2018 and there seem to be a problem in doProcess in CC 2018 that may be new I no longer have CC 2015, CC 2015.5 and CC 2017 installed.
Here is Tom's code with a little extra code thrown in.
/* The basic part of this script was posted by Tom Ruark to show how hard it is to catch ESC he wrote
"Depending on your operation it is difficult to capture the ESC key however. Your mileage may vary"
I had to try many many times to see ESC triger DoIt function's Catch Alert messages.
However doProgressSubTask did return the DoIt function failed when ESC was used and doProgressSubTask
caught ESC. So where User use the ESC key gets cough can vary and what is done can vary. For when the
DoIt function did catch the user cancelled it message that fact but took no action to return that fact
so the script keep on adding layers after I dismissed the DoIT message user cancelled.
As Tom wrote your mileage may vary so keep hitting the ESC the script may be able to be stopped else where
where ESC will not be ignored or just noted.
Note: doProcess, doForceProcess and doProgressSubTask seems to have been add to Photoshop Scripting in CC 2015
DoProcess does not seem to work correctly in CC 2018 if the script is run when there is no open document
in CC 2018. A new document will be opened and layers will be added. However, no progress bar will be displayed.
DoForcedProcess Does display a progress bar. I no longer have cc 2015, cc 2015.5 or CC 2017 installed to test
with they have many bugs perhaps Adobe will fix CC 2018.
*/
var d;
//if (CheckVersion(16)) doForcedProgress("Testing", "Testing()");
if (CheckVersion(16)) doProgress("Testing", "Testing()"); // this waits 3 or so seconds before showing
//////////////////////////////////////////////////////////////////////////////////////////////////////////////
function Testing() {
try {
if (documents.length == 0)
d = documents.add();
else
d = activeDocument;
var keepGoing = true;
for (var i = 0; i < 100 && keepGoing; i++) {
keepGoing = doProgressSubTask(i, 100, "DoIt()");
}
if (!keepGoing)
alert("User canceled keepGoing=" + keepGoing);
} catch(e) {
alert("Testing: " + e);
}
}
function DoIt() {
try {
d.artLayers.add();
}
catch(e) {
alert("DoIt: " + e);
}
}
// CheckVersion
function CheckVersion(PSV) {
var numberArray = version.split(".");
if ( numberArray[0] < PSV ) {
alert( "You must use Photoshop " + PSV + " or later to run this script!" );
return false;
}
else return true;
}
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