GUICtrlRead not returning an array with Advanced flag enabled

[Travis]

guicreate("test",300,300)
$TreeView=guictrlcreatetreeview(20,20,200,200,0x100)
$TV_Item1=guictrlcreatetreeviewitem("hello",$TreeView)
$TV_Item2=guictrlcreatetreeviewitem("world",$TreeView)
$Button=guictrlcreatebutton("ok",10,280)
global $data1[2]
guisetstate(@SW_SHOW)

while 1
   $msg = guigetmsg()
   Select
      case $msg=$b
         $data1=guictrlread($TreeView,1) ; Should be returning extended information
         $q=isarray($data1) ; Is returning 0, $data1 is not an array
         msgbox(0,"IsArray return",$q)
         msgbox(0,"",$data1[0])  ; crashes script
         msgbox(0,"",$data1[1])  ; crashes script
   EndSelect
WEnd

So I am trying to incorporate a TreeView into this script I am writing, so in a separate file here I have been playing with TreeView to see if it will give me the functionality I am looking for.

After consulting the help file, it seems that using GUICtrlRead($control_id, Advanced = 1) should give me the data I need.

However, after some debugging I've found that for some reason, GUICtrlRead is NOT returning an array value at all.

I'm stumped here. I have re-read the documentation and do not believe I am using these functions incorrectly. Why am I not getting an array return from GUICtrlRead? It simply gives me a variable containing the text of the item selected

Edited September 20, 2015 by Travis
changed variable names to be more meaningful for clarity

[water]

GuiCtrlRead doesn't return an array. Even with the extended flag only the return value is being set. If you want both (the state/data and the extended data) then you have to call GuiCtrlRead twice (without and with the flag set).

[Travis]

Thank you, water!

I feel quite silly now. Now that I carefully look at the documentation for GUICtrlRead you are indeed correct. It does not say anything about returning an array. This helps a lot.

[water]