non-visible windows listed even when filtered for visibility

[mmwatson]

Greetings,

I am working on a small utility to simplify moving open windows from one monitor to another. I've run into something a bit odd.  When I filter the output of WinList() using a WinGetState() of 2 ("window is visible") and output the entire list to a GUI, I do see the visible windows, but I also always see at least two that aren't. One is named "Start" and the other is named "Program manager". I would like to understand where these two entries - which don't correspond to any open windows that I see - are coming from. 

I imagine I'm missing something really basic. I suppose I could add a window title filter, but I'd rather understand why those two non-visible windows are showing up even when I do a BitAnd of 2 with the WinGetState() of each window in the isVisible() user-defined function. Any insights another autoit user might be able to offer would be most welcome.

My code:

#include <GUIConstantsEx.au3>

#include <ButtonConstants.au3>

Opt("MustDeclareVars",1)

 

; Windows states are retuned by WinGetState:

; 1 = window exists

; 2 = window is visible

; 4 = window is enabled

; 8 = window is active

; 16 = window is minimized

; 32 = window is maximized

 

Func populateList($aWindows)

  For $i = 1 to $aWindows[0][0]

    If $aWindows[$i][0] <> "" And isVisible($aWindows[$i][1]) Then

      ; For some reason, the program consistently lists at least two windows that aren't visible.

      ; They have windows titles "Start" and "Program Manager". 

      GUICtrlCreateListViewItem($aWindows[$i][0],$lstView)

    EndIf

  Next

EndFunc

 

Func isVisible($handle)

  If BitAnd( WinGetState($handle), 2 ) Then 

    Return 1

  Else

    Return 0

  EndIf

EndFunc

 

 

; Main

Local $hWinMain = GUICreate("Open Windows",600,350)

Local $lstView = GUICtrlCreateListView("Open Windows",10,10,550,250)

Local $aWindows = WinList()

populateList($aWindows) ; The listView does contain all visible windows, but also contains

                                        ; two that I don't see: "Program Manager" and "Start"

GUISetState(@SW_SHOW)

While 1

  Local $iMsg = GUIGetMsg()

  Sleep(50)

  If $iMsg = $GUI_EVENT_CLOSE Then

    ExitLoop

  EndIf

WEnd

 

 

[JohnOne]

Start button and desktop they are.

[mmwatson]

I wondered whether that might be the case. If so, I suppose there's no way for me to exclude them short of filtering by title - which is, at least, easy enough. Thanks for posting.

MW