topic Re: Maxscript to Photoshop: Can't find correct argument for Selection.Select() in 3ds Max Programming Forum

Maxscript to Photoshop: Can't find correct argument for Selection.Select()

TurboChiken — Wed, 04 Jun 2025 13:05:58 GMT

I'm learning to manipulate Photoshop through Maxscript, and I'm just trying to select a specific area of the Photoshop document using [document].Selection.Select [region]. But I can't figure out how to pass the [region] argument, everything I try kicks an error of some kind. Does anyone have experience with this?

ps = CreateOLEObject"Photoshop.Application" -- launches Photoshop doc = ps.application.documents.add 200 200 -- create a new document, 200 by 200 pixels doc.Selection.Select #(0, 0, 100, 100) -- attempt to select an area, but it kicks an error

Re: Maxscript to Photoshop: Can't find correct argument for Selection.Select()

A娘 — Thu, 05 Jun 2025 01:07:40 GMT

if the area was empty ，select was forbidden

Re: Maxscript to Photoshop: Can't find correct argument for Selection.Select()

TurboChiken — Thu, 05 Jun 2025 11:48:28 GMT

I wasn't able to get .select() to work, but I was able to write a workaround function by selecting the entire canvas, scaling the selection down to the correct size, and then translating it as needed:

-- Given a document reference, this selects the given area. x1 and y1 are the top left, and x2 and y2 are the bottom right. -- Couldn't figure out how to use the .select() command, so we're using a workaround by selecting everything, then resizing and translating. fn selectArea doc x1 y1 x2 y2 = ( doc.selection.selectAll() local arr=doc.selection.bounds.dataArray local currWidth=arr[3]-arr[1], currHeight=arr[4]-arr[2] local newWidth=x2-x1, newHeight=y2-y1 local scaleX=newWidth/currWidth*100, scaleY=newHeight/currHeight*100 doc.selection.resizeBoundary (scaleX) (scaleY) 1 -- 1 means anchored in top left doc.selection.translateBoundary x1 y1 )