need to check if active layer has transparent/inactive pixels? / boolean. Thanks!

[roby]

is there a check that i can do that will return whether or not the active layer has transparent pixels? thanks a trillion!

[roby]

Alright everyone calm down, i know everyone was in the middle of writing an answer but i found something that while is not precisely what i intended, gets the job done for what i needed.

the =

isBackgroundLayer

property of an artlayer. which pretty much tells me whether or not the ducoument is flattened. I know that i can check whether or not individual pixels have transparency but that would make the entire script a lot more complicated than what i actually need.

By the way, EVERYONE Gets to keep their million thanks!!!

[matias.kiviniemi]

Just want to point out that a background layer is format specific. I.e. if you create a doc with transparent background, it does not have a background. And flattening a doc without background does not create one. Also in case you need to check per-layer, see function below

isAreaEmpty: function (left, top, right, bottom) {

  var selection_area = new Array(new Array(left, top), new Array(right, top), new Array(right, bottom), new Array(left, bottom))

  var selection = app.activeDocument.selection

  selection.select(selection_area)

  try {

  selection.copy()

  } catch (e) {

  return true

  } finally {

  selection.deselect()

  }

  return false

},

[c.pfaffenbichler]

checking each individual pixel of a layer for transparency

[c.pfaffenbichler]

Another option might be to select the transparency, then check the Selection’s histogram.