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Photoshop script (JSX) – history snapshots count?

I’m new to Photoshop JSX scripting. Until now I did script a little “hello world” that saves a jpg image of the first history snapshot.

What I want is to know the number of history snapshots present in the active image but I can’t find any good info or example.

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2

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  1. Chosen as BEST ANSWER
    0

    Here is the solution (Thanks to c.pfaffenbichler):

    xvar myDoc = app.activeDocument;
var theHist = myDoc.historyStates;
var theSnaps = new Array;
for (var m = 0; m < theHist.length; m++) {
var theState = theHist[m];
if (theState.snapshot == true) {theSnaps.push(theState)}
};
alert (theSnaps.length);

    Nice. Isn't it?


  2. 0

    You need to iterate through Document.HistoryStates and test the boolean called snapshot for each one – it is true if the state is a snapshot.

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