[Closed] paintInterface problem

hi, ive been trying to get the pressure when painting something in the viewport but for some odd reason i cant figure out it always crashes max (2010 and 11)

scene: empty scene with only one plane called Plane001

testScript:

(
	local tPlane = $Plane001
	
	
	fn startStroke = 
	(
		print "Handle start stroke here"
	)

	fn paintStroke = 
	(
		try(
		local localHit = Point3 0 0 0
		local localNormal = Point3 0 0 0
		local worldHit = Point3 0 0 0
		local worldNormal = Point3 0 0 0
		local str = 0.0f
		local radius = 0.0f
		
		local shift = true
		local ctrl = true
		local alt = true
		local pressure = 0.0
		
		
		thePainterInterface.getHitPointData &localHit &localNormal &worldHit &worldNormal &radius &str 0
		
		thePainterInterface.getHitPressureData &shift &ctrl &alt &pressure 0
		
		
		local hit = thePainterInterface.getIsHit 0
		
		if hit do
		(
			print "Handle paint stroke here"
			thePainterInterface.getHitPointData &localHit &localNormal &worldHit &worldNormal &radius &str 0
			
			format "pos:% zDepth:%
" worldHit pressure
			--thePainterInterface.clearStroke()
		)
		)catch(print (getcurrentException()) )
	)

	fn endStroke = 
	(
		print "Handle end stroke here"
	)

	fn cancelStroke = 
	(
		print "Handle cancel stroke here"
	)

	fn systemEnd = 
	(
		print "Handle system end here"
	)

	if isValidNode tPlane do
	(
		thePainterInterface.ScriptFunctions startStroke paintStroke endStroke cancelStroke systemEnd
		
		thePainterInterface.initializeNodes 0 #(tPlane)
		
	-- 	thePainterInterface.pressureEnable = true
	-- 	thePainterInterface.pressureAffects = 2
		
		thePainterInterface.startPaintSession()
	)
)

anyone got an idea as to why this is crashing and/or how to make it work? :shrug: