How to Detect Mixed Tracking Values in Paragraphs Using InDesign Scripting

> then i tried textStyleRanges, through stories and texts it wont work.

Not sure what you mean by this. Anyway, textStyleRanges is definitely the way to go. Something along these lines:

par = app.documents[0].stories.everyItem().paragraphs.everyItem().getElements();

for (i = 0; i < par.length; i++) {
  // This returns an array of values. Check whether
  // the values are the same
  track = par[i].textStyleRanges.everyItem().getElements();
}

So first you collect the paragraphs in your document. Then in each paragraph, get the tracking values of the paragraph’s textStyleRanges. If you use the method I sketched you get an array. Then all you need to do is to check whether all the array values are the same.