Treeview expand buttons don't show until item is clicked?

#include <Array.au3>
#include <ButtonConstants.au3>
#include <GUIConstantsEx.au3>
#include <GUIListBox.au3>
#include <StaticConstants.au3>
#include <TreeViewConstants.au3>
#include <WindowsConstants.au3>
#include <GuiConstants.au3>
#include <GuiTreeView.au3>
;#include <WinAPI.au3>
#include <GuiListView.au3>
#include <File.au3>
Opt("GUIOnEventMode", 1)
Global $hGUI, $hTV, $idTV, $hLV, $hToCount, $AddressArray, $AddorEdit, $AddEdit, $NumberInputText, $FavCheck, $FavTest,$hTVSelectedItemText
Global $TreeRebuild = 1;Default is yes, rebuild the tree
Global $AddressFile = (@ScriptDir & "\CPAddresses.txt")
Global $FavAdd = 1
$hGUI = GUICreate("Form1", 486, 398, 197, 124)
GUISetOnEvent($GUI_EVENT_CLOSE, "hGUIClose")
GUISetOnEvent($GUI_EVENT_MINIMIZE, "hGUIMinimize")
GUISetOnEvent($GUI_EVENT_MAXIMIZE, "hGUIMaximize")
GUISetOnEvent($GUI_EVENT_RESTORE, "hGUIRestore")
$hTV = _GUICtrlTreeView_Create($hGUI, 224, 32, 249, 321, -1, BitOR($WS_EX_CLIENTEDGE,$WS_EX_STATICEDGE,$TVS_HASBUTTONS))
$idTV = _WinAPI_GetDlgCtrlID($hTV)
$hLV = _GUICtrlListView_Create($hGUI, "Name      |Number", 8, 32, 201, 279, BitOR($LVS_REPORT, $LVS_SHOWSELALWAYS))
_GUICtrlListView_SetExtendedListViewStyle($hLV, BitOR($LVS_EX_GRIDLINES, $LVS_EX_FULLROWSELECT, $LVS_EX_TRACKSELECT))
$Label1 = GUICtrlCreateLabel("To:", 8, 8, 29, 24)
GUICtrlSetFont(-1, 12, 800, 0, "MS Sans Serif")
$Label2 = GUICtrlCreateLabel("Address Book:", 224, 8, 121, 24)
GUICtrlSetFont(-1, 12, 800, 0, "MS Sans Serif")
$Send = GUICtrlCreateButton("Send", 56, 352, 97, 33)
GUICtrlSetFont(-1, 12, 800, 0, "MS Sans Serif")
GUICtrlSetOnEvent(-1, "bSend")
$Button2 = GUICtrlCreateButton("Delete Selected", 8, 318, 97, 25)
GUICtrlSetOnEvent(-1, "bDeleteItem")
$bClear = GUICtrlCreateButton("Clear All", 112, 318, 97, 25)
GUICtrlSetOnEvent(-1, "bClearClick")
$bFavorite = GUICtrlCreateButton("Toggle Fav", 224, 360, 81, 25)
GUICtrlSetTip(-1, "Toggles Favorites On/Off")
GUICtrlSetOnEvent(-1, "bFavorite")
$bAddrAdd = GUICtrlCreateButton("Add", 368, 360, 49, 25)
GUICtrlSetOnEvent(-1, "bAddrAdd")
$bAddrDelete = GUICtrlCreateButton("Delete", 424, 360, 49, 25)
GUICtrlSetOnEvent(-1, "bAddrDelete")
$Button7 = GUICtrlCreateButton("Edit", 312, 360, 49, 25)
GUICtrlSetOnEvent(-1, "bAddrEdit")
$Label3 = GUICtrlCreateLabel("(Double-click to add...)", 352, 13, 111, 17)
GUISetState(@SW_SHOW)
GUIRegisterMsg($WM_NOTIFY, "_WM_NOTIFY")
GUISetState()
Startup()
Do
Sleep(100)
Until GUIGetMsg() = $GUI_EVENT_CLOSE
Func _WM_NOTIFY($hWnd, $Msg, $wParam, $lParam)
Local $tagNMHDR = "int hwndFrom; int idFrom; int code"
Switch $wParam
Case $idTV
Local $tNMHDR = DllStructCreate($tagNMHDR, $lParam)
If @error Then Return
If DllStructGetData($tNMHDR, "code") = $NM_DBLCLK Then
$hTVItem = _GUICtrlTreeView_GetText($hTV, _GUICtrlTreeView_GetSelection($hTV))
$hTVItemArray = StringSplit ($hTVItem, ":");Split the array string into Name/Number fields
$ItemExists = _GUICtrlListView_FindText($hLV, $hTVItemArray[1]);Check if the item has already been added.
If $hTVItemArray[0] > 1 And $ItemExists = -1 Then
     _GUICtrlListView_AddItem($hLV, $hTVItemArray[1])
     _GUICtrlListView_AddSubItem($hLV, 0 + $hToCount, StringStripWS($hTVItemArray[2],8), 1)
     $hToCount = $hToCount + 1
     _GUICtrlListView_SimpleSort($hLV,False, 0)
EndIf
;~ Tried to set already present item as the sole selection, but doesn't work - not a big deal...
;~   If $hTVItemArray[0] > 1 And $ItemExists <> -1 Then
;~   ;_GUICtrlListView_SetItemSelected($hLV, -1)
;~   _GUICtrlListView_SetItemSelected($hLV, $ItemExists)
;~   EndIf
EndIf
EndSwitch
$tNMHDR = 0
Return $GUI_RUNDEFMSG
EndFunc ;==>_WM_NOTIFY
Func bClearClick()
_GUICtrlListView_DeleteAllItems($hLV)
$hToCount = 0
EndFunc
Func bFavorite()
$FavAdd = 0
$hTVSelectedItem = _GUICtrlTreeView_GetSelection($hTV)
;MsgBox(16,"Fax Address Book","$hTVSelectedItem: " & $hTVSelectedItem)
If $hTVSelectedItem = 0 Then
MsgBox(16,"Fax Address Book","Nothing selected!")
Else
$hTVSelectedItemText = _GUICtrlTreeView_GetText($hTV, $hTVSelectedItem)
$FavTest = _ArraySearch($AddressArray,$hTVSelectedItemText & "§")
$ItemPos = _ArraySearch($AddressArray,$hTVSelectedItemText); Search for item in array - if not found sets var to -1(ie. a parent at this point?)
If $FavTest = -1 and $ItemPos <> -1 Then ;Didn't find entry in array with "§" at the end & checked if item is a parent (shouldn't be)
;MsgBox(0,"test","Not a favorite, toggling...")
;$ItemPos = _ArraySearch($AddressArray,$hTVSelectedItemText)
$AddressArray[$ItemPos] = $AddressArray[$ItemPos] & "§"; Add favorite marker: "§"
;_GUICtrlTreeView_Expand($hTV, $hTVFav, True);Expand Favorites when new Fav added... not working all the TimerDiff
;Trying this (below):
$FavAdd = 1
ElseIf $FavTest <> -1 Then ;Item is already a favorite (and presumably a child...)
;MsgBox(0,"test","Already a favorite, toggling...")
$AddressArray[$FavTest] = StringTrimRight($AddressArray[$FavTest],1); Trim favorite marker: "§"
Else ;Must be a parent item, so do nothing...
;MsgBox(0,"test","Parent item?")
$TreeRebuild = 0
EndIf
If $TreeRebuild = 1 Then ;No need to rebuild tree if the item selected was a parent...
;MsgBox(0,"test","Rebuilding tree...")
TreeRebuild()
EndIf
$TreeRebuild = 1;Set $TreeRebuild on for next time...
;_ArrayDisplay($AddressArray); For testing
EndIf
EndFunc
Func bAddrAdd()
$AddorEdit = 1
Add_EditGUI()
EndFunc
Func bAddrEdit()
$TreeRebuild = 1
$hTVSelectedItem = _GUICtrlTreeView_GetSelection($hTV)
If $hTVSelectedItem = 0 Then
MsgBox(16,"Fax Address Book","Nothing selected!")
Else
$hTVSelectedItemText = _GUICtrlTreeView_GetText($hTV, $hTVSelectedItem)
$FavTest = _ArraySearch($AddressArray,$hTVSelectedItemText & "§");$FavTest will be -1 if the item is NOT found marked as a favorite
$ItemPos = _ArraySearch($AddressArray,$hTVSelectedItemText); Search array - if not found sets var to -1(must be a parent)
;MsgBox(0,"Fax Address Book","$FavTest: " & $FavTest & @CRLF & "$ItemPos: " & $ItemPos)
If $FavTest = -1 and $ItemPos = -1 Then;Item must be a parent
$TreeRebuild = 0
EndIf
EndIf
If $TreeRebuild <> 0 Then
$AddorEdit = 2;Set Edit GUI to import Name, Number and Favorite status
Add_EditGUI()
EndIf
EndFunc
Func bAddrDelete();Delete an item from the tree view
$KillMe = _GUICtrlTreeView_GetSelection($hTV)
$KillMeText = _GUICtrlTreeView_GetText($hTV, $KillMe)
$KillMePos = _ArraySearch($AddressArray,$KillMeText)
If $KillMePos = -1 Then;Text not found, must a favorite, search for it as a favorite
$KillMePos = _ArraySearch($AddressArray,$KillMeText & "§")
EndIf
;_ArrayDisplay($AddressArray)
;MsgBox(0,"test","$KillMePos: " & $KillMePos)
If $KillMePos <> -1 Then
_ArrayDelete($AddressArray, $KillMePos)
$AddressArray [0] = ($AddressArray [0] -1);Modify the array count in Row 0
TreeRebuild()
EndIf
;_ArrayDisplay($AddressArray)
EndFunc
Func bDeleteItem()
_GUICtrlListView_DeleteItemsSelected($hLV)
$hToCount = _GUICtrlListView_GetItemCount($hLV)
EndFunc
Func bSend()
EndFunc
Func hGUIClose()
;_ArrayDisplay($AddressArray)
_ArrayDelete($AddressArray[0], 0);Delete the array index count from row 0...
_FileWriteFromArray($AddressFile, $AddressArray,1)
Exit
EndFunc
Func hGUIMaximize()
EndFunc
Func hGUIMinimize()
EndFunc
Func hGUIRestore()
EndFunc
Func TreeBuild()
Global $ParentItemsCount = 1
_ArraySort($AddressArray)
;_ArrayDisplay($AddressArray);Testing only
;This section builds the index items first (Favorites, & first index character like "A", "B", etc)-----
For $i = 1 to $AddressArray[0]
$FirstChr = StringUpper(StringLeft($AddressArray[$i],1))
$FirstChrExists = _GUICtrlTreeView_FindItem($hTV, $FirstChr);Test if the index has already been added.
If $FirstChrExists = 0 Then; Add the index if it doesn't already exist.
Assign("$hTV" & $FirstChr,_GUICtrlTreeView_Add($hTV, 0, $FirstChr))
$ParentItemsCount = $ParentItemsCount + 1
EndIf
Next
;Sort the tree and then add Favorites as first item----------------------------------------------------
_GUICtrlTreeView_Sort($hTV)
Global $hTVFav = _GUICtrlTreeView_AddFirst($hTV, 0, "Favorites")
;$hTVFavHandle = _GUICtrlTreeView_GetParentHandle($hTV,$hTVSelectedItem)
;Find the Favorites and add----------------------------------------------------------------------------
$hTV_FavFound = _ArrayFindAll($AddressArray, "§", 0, $AddressArray[0], 0, 1)
;_ArrayDisplay($hTV_FavFound);Testing only
If $hTV_FavFound <> -1 Then
For $i = 0 to _ArrayMaxIndex($hTV_FavFound)
_GUICtrlTreeView_AddChild($hTV, $hTVFav, StringTrimRight($AddressArray[$hTV_FavFound[$i]], 1))
Next
EndIf
;Then the subitems are added to the tree---------------------------------------------------------------
For $i = 1 to $AddressArray[0]
$FirstChr = StringUpper(StringLeft($AddressArray[$i],1))
If StringRight($AddressArray[$i],1) = "§" Then
_GUICtrlTreeView_AddChild($hTV, Eval("$hTV" & $FirstChr), StringTrimRight($AddressArray[$i],1))
Else
_GUICtrlTreeView_AddChild($hTV, Eval("$hTV" & $FirstChr), $AddressArray[$i])
EndIf
Next
EndFunc

Func ReadAddressFile()
_FileReadToArray($AddressFile,$AddressArray)
EndFunc
Func Startup()
ReadAddressFile()
TreeBuild()
;_GUICtrlTreeView_Expand($hTV,"",True);Why is this necessary?
;_GUICtrlTreeView_Expand($hTV,"",False)
_GUICtrlTreeView_Expand($hTV, $hTVFav, True);Expand Favorites on startup
EndFunc

Func GetExpandedItems()
Global $ExpandedParentArray[$ParentItemsCount + 1][2]
;MsgBox(0,"test","$ParentItemsCount: " & $ParentItemsCount)
$hTVParent = $hTVFav
;For $k = 0 to ($ParentItemsCount - 1)
For $k = 1 to ($ParentItemsCount)
$hTVParentText = _GUICtrlTreeView_GetText($hTV, $hTVParent)
$ExpandedParentArray [$k][0] = $hTVParentText
$ExpandedParentArray [$k][1] = _GUICtrlTreeView_GetExpanded($hTV, $hTVParent)
;MsgBox(0,"test","$hTVParentText: " & $hTVParentText)
$hTVParent = _GUICtrlTreeView_GetNextSibling($hTV,$hTVParent)
;_ArrayDisplay($ExpandedParentArray)
Next
$ExpandedParentArray [0][0] = $k
;_ArrayDisplay($ExpandedParentArray)
EndFunc
Func RestoreExpandedItems()
For $l = 1 to ($ExpandedParentArray [0][0] -1)
If $ExpandedParentArray[$l][1] = True Then
$hTVParentFound = _GUICtrlTreeView_FindItem($hTV, $ExpandedParentArray[$l][0])
If $hTVParentFound <> 0 Then;Only try to expand the tree if the parent item is actually found!
;MsgBox(0,"test","Expanding: " & _GUICtrlTreeView_GetText($hTV, $hTVParentFound))
_GUICtrlTreeView_Expand($hTV, $hTVParentFound)
EndIf
If $FavAdd = 1 Then
_GUICtrlTreeView_Expand($hTV, $hTVFav, True);Expand Favorites on startup
EndIf
EndIf
Next
EndFunc
Func TreeRebuild()
GetExpandedItems()
_GUICtrlTreeView_DeleteAll($hTV)
TreeBuild()
RestoreExpandedItems()
EndFunc

;Add/Edit GUI---------------------------------------------------------------
Func AddEditCancel()
;MsgBox(0,"test","Closing Edit GUI")
GUIDelete($AddEdit)
GUISwitch($hGUI)
EndFunc
Func AddEditClose()
;MsgBox(0,"test","Closing Edit GUI")
GUIDelete($AddEdit)
GUISwitch($hGUI)
EndFunc
Func Add_EditGUI()
;$AddorEdit: 1 = Add, 2 = Edit
#Region ### START Koda GUI section ### Form=C:\Program Files\AutoIt3\koda_1.7.3.0\Forms\CallPilot Address Book Add-Edit.kxf
$AddEdit = GUICreate("AddEdit", 338, 184, -1, -1, BitOR($WS_POPUPWINDOW, $WS_THICKFRAME, $WS_CAPTION),-1,$hGUI)
;$AddEdit = GUICreate("AddEdit", 338, 184, 204, 128, BitOR($WS_POPUPWINDOW, $WS_THICKFRAME, $WS_CAPTION),-1,$hGUI)
GUISetOnEvent($GUI_EVENT_CLOSE, "AddEditCancel")
$NameInput = GUICtrlCreateInput($hTVSelectedItemText, 16, 32, 153, 21)
$NameLabel = GUICtrlCreateLabel("Name", 16, 12, 45, 18)
GUICtrlSetFont(-1, 10, 800, 0, "MS Sans Serif")
$NumberInput = GUICtrlCreateInput($NumberInputText, 16, 80, 305, 21)
$NumberLabel = GUICtrlCreateLabel("Number(s):", 16, 60, 80, 18)
GUICtrlSetFont(-1, 10, 800, 0, "MS Sans Serif")
$InfoLabel1 = GUICtrlCreateLabel('Note: A single "Name" can include multiple fax', 16, 104, 277, 20)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
$InfoLabel2 = GUICtrlCreateLabel("numbers. Just separate each number with a comma.", 16, 120, 311, 20)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
$AddEditOK = GUICtrlCreateButton("OK", 256, 144, 65, 25)
GUICtrlSetFont(-1, 10, 800, 0, "MS Sans Serif")
GUICtrlSetOnEvent(-1, "OKFunc")
$AddEditCancel = GUICtrlCreateButton("Cancel", 184, 144, 65, 25)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
GUICtrlSetOnEvent(-1, "AddEditClose")
$FavCheck = GUICtrlCreateCheckbox("Favorite?", 192, 29, 89, 25)
GUICtrlSetFont(-1, 10, 400, 0, "MS Sans Serif")
GUICtrlSetState($FavCheck,$GUI_UNCHECKED)
If $FavTest <> -1 Then
GUICtrlSetState($FavCheck,$GUI_CHECKED)
EndIf
GUISetState(@SW_SHOW)
#EndRegion ### END Koda GUI section ###
GUISwitch($AddEdit)
EndFunc