Explorer GUI Dock problem

[BigDaddyO]

I am writing up a little program that will allow users to drag and drop files and folders into a list to assist with data migrations.

I have been trying many many different methods to display the Directory strucutre and have settled with Docking an explorer windows to my GUI.

I am using the code from GAFrost with his Code Snippet and if I move the GUI the Windows Explorer window stays with it perfect, but when I move the Explorer window my GUI does not move with it.

Anybody have any ideas?

Current Full code is below

Thanks,

Mike

edit: updated so it will recognize Explorer in WinXP

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;Resize from AutoIT GUI on top works but not when resizing from bottom
;Move and Resize does not work from Windows Explorer windows

#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
Opt("WinTitleMatchMode", 4)
$iWidth = 320
$iHeight = 460
$x2 = (@DesktopWidth - ($iWidth * 2)) / 2
$y2 = (@DesktopHeight - $iHeight) / 2
;Create the GUI Window
    $hGUI = GUICreate("Migration Assistant", $iWidth, $iHeight, -1, -1, $WS_SIZEBOX)
    GUICtrlCreateLabel("Folders/Files to Migrate", 10, 10, ($iWidth - 20), 17)
    GUICtrlCreateList("", 10, 35, $iWidth - 20, $iHeight - 45)
;Launch Windows Explorer at the My Comptuer Level
    $hWin2 = Run("Explorer.exe /e,::{20D04FE0-3AEA-1069-A2D8-08002B30309D}", @SystemDir, @SW_HIDE)
;Wait until the explorer window has launched
;Get the handle of that window so it can be used later
    if @OSVersion = "WIN_XP" or @OSVersion = "WIN_2000" Then
        if WinWait("Classname=ExploreWClass", "", 45) = 0 then Exit
        $hExplorer = WinGetHandle("Classname=CabinetWClass", "")
    Else
        if WinWait("Classname=CabinetWClass", "", 45) = 0 then Exit
        $hExplorer = WinGetHandle("Classname=CabinetWClass", "")
    EndIf
    WinMove($hExplorer, "", $x2, $y2, $iWidth, $iHeight)
;Identify the position of the AutoIT GUI
    $WinPos = WinGetPos($hGUI)
    $x1 = $WinPos[0]
    $y1 = $WinPos[1]
;Tells the _KeepWindowsDocked function to perform the initial doc
    $Dock = 2
;Dock the windows now
    _KeepWindowsDocked($hExplorer, $hGUI, $Dock, $x1, $x2, $y1, $y2)
;Register resize/move events
    GUIRegisterMsg($WM_MOVE, "_WinMoved")
    GUIRegisterMsg($WM_SIZE, "_WinMoved")
    
;Display the GUI Window
    GUISetState ()
    WinSetState($hExplorer, "", @SW_SHOW)

    While 1
        $msg = GUIGetMsg()      
        If $msg = $GUI_EVENT_CLOSE Then
        ;CLose the Explorer window also
            WinClose($hExplorer)
            Exit
        EndIf
    WEnd


Func _KeepWindowsDocked(ByRef $GUI1, ByRef $GUI2, ByRef $Dock, ByRef $x1, ByRef $x2, ByRef $y1, ByRef $y2)
    Local $p_win1 = WinGetPos($GUI1)
    Local $p_win2 = WinGetPos($GUI2)
    If (($p_win1[0] <> $x1 Or $p_win1[1] <> $y1) And BitAND(WinGetState($GUI1), 2) Or $Dock = 2) Then
        $x1 = $p_win1[0]
        $y1 = $p_win1[1]
        $x2 = $p_win1[2] + $x1
        $y2 = $y1
        WinMove($GUI2, "", $x2, $y2, $p_Win2[2], $p_Win1[3])
        $Dock = 1
    ElseIf (($p_win2[0] <> $x2 Or $p_win2[1] <> $y2) And BitAND(WinGetState($GUI2), 2)) Then
        $x2 = $p_win2[0]
        $y2 = $p_win2[1]
        $x1 = $p_win2[0] - $p_win1[2]
        $y1 = $y2
        WinMove($GUI1, "", $x1, $y1, $p_Win1[2], $p_Win2[3])
    ElseIf ($p_win1[0] <> $x1 Or $p_win1[1] <> $y1) And BitAND(WinGetState($GUI1), 16) Then
        WinSetState($GUI2, "", @SW_MINIMIZE)
    ElseIf ($p_win2[0] <> $x2 Or $p_win2[1] <> $y2) And BitAND(WinGetState($GUI2), 16) Then
        WinSetState($GUI1, "", @SW_MINIMIZE)
    ElseIf ($p_win1[0] <> $x1 Or $p_win1[1] <> $y1) And BitAND(WinGetState($GUI1), 2) Then
        WinSetState($GUI2, "", @SW_RESTORE)
    ElseIf ($p_win2[0] <> $x2 Or $p_win2[1] <> $y2) And BitAND(WinGetState($GUI2), 2) Then
        WinSetState($GUI1, "", @SW_RESTORE)
    EndIf
EndFunc  ;==>_KeepWindowsDocked

Func _WinMoved($hWndGUI, $MsgID, $wParam, $lParam)
    #forceref $hWndGUI, $MsgID, $wParam, $lParam
    If ($hWndGUI = $hGUI) Or ($hWndGUI = $hExplorer) Then
        _KeepWindowsDocked($hExplorer, $hGUI, $Dock, $x1, $x2, $y1, $y2)
    EndIf
    Return $GUI_RUNDEFMSG
EndFunc  ;==>_WinMoved

Edited March 20, 2009 by MikeOsdx

[Dolemite50]

I haven't tried troubleshooting your problem but you might consider making them both children of a main GUI. SmokeN has an example of embedding two explorer controls GUI around here somewhere, it should be in the ballpark.

Sorry if that doesn't help, good luck.

[Melba23]

MikeOsdx,

The script is not working becasue the Explorer window is not firing your _WinMoved function - I imagine because it is not an AutoIt GUI and so you cannot intercept the mesage via GUIRegisterMsg.

Perhaps if you tried embedding the Explorer window in your own GUI, whose message you could intercept. I am afraid I do not have time to try this at present - perhaps later today.

M23

[Melba23]

MikeOsdx,

Ok, here is where I have got to for the moment.

This script produces as embedded Explorer on the left and your Migration GUI on the right. They now follow each other like 2 very good friends ( ). However, I have only been able to get the simultaneaous resize to work for the Migration GUI - perhaps because of the the embedded Explorer, I cannot get the lefthand GUI to take focus and hence accept any resize commands. And yet it fires the message for moving without any problems - perhaps someone with more experience of these dark matters ( ) can explain that.

expandcollapse popup

#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <WinAPI.au3>

Opt("WinTitleMatchMode", 4)

$iWidth = 320
$iHeight = 460

;Create the GUI Window
Global $hMigration = GUICreate("Migration Assistant", $iWidth, $iHeight, Default, Default, $WS_SIZEBOX)
GUICtrlCreateLabel("Folders/Files to Migrate", 10, 10, ($iWidth - 20), 17)
GUICtrlSetResizing(-1, $GUI_DOCKALL)
GUICtrlCreateList("", 10, 35, $iWidth - 20, $iHeight - 60)
GUICtrlSetResizing(-1, $GUI_DOCKBORDERS)
GUISetState ()

;Identify the position of the AutoIT GUI
$WinPos = WinGetPos($hMigration)
Global $x1 = $WinPos[0]
Global $y1 = $WinPos[1]

; Set Explorer GUI coords
Global $x2 = $x1 - $iWidth
Global $y2 = $y1

; Create the Explorer GUI
Global $hExplHolder = GUICreate("Explorer", $iWidth, $iHeight, $x2, $y2, BitOr($GUI_SS_DEFAULT_GUI ,$WS_CLIPCHILDREN, $WS_SIZEBOX))
GUISetState ()

Run("explorer.exe /n, M:\")  ; Set it the folder you want as a start point
WinWait("[CLASS:CabinetWClass]")
Global $hExplorer = WinGetHandle("[CLASS:CabinetWClass]")
_WinAPI_SetParent($hExplorer, $hExplHolder)
WinMove($hExplorer, "", 0, 0, $iWidth, $iHeight)
WinSetState($hExplorer, "", @SW_MAXIMIZE)

;Tell the _KeepWindowsDocked function to perform the initial dock
Global $Dock = 2
;Dock the windows now
_KeepWindowsDocked($hMigration, $hMigration, $hExplHolder, $Dock, $x1, $x2, $y1, $y2)

;Register messages
GUIRegisterMsg($WM_MOVE, "_WinMoved")
GUIRegisterMsg($WM_SIZE, "_WinMoved")

While 1
    $msg = GUIGetMsg()
    If $msg = $GUI_EVENT_CLOSE Then
        Exit
    EndIf

    ; Exit if Explorer window is shut
    If Not WinExists($hExplorer) Then Exit

WEnd

Func _KeepWindowsDocked($hWnd, $GUI1, $GUI2, $Dock, ByRef $x1, ByRef $x2, ByRef $y1, ByRef $y2)

    Local $p_win1 = WinGetPos($GUI1)
    Local $p_win2 = WinGetPos($GUI2)
    ; If Migration is active
    If $hWnd = $GUI1 Then
        ; If Migration has moved or has changed size
        If $p_win1[0] <> $x1 Or $p_win1[1] <> $y1 Or $p_win1[2] <> $p_win2[2] Or $p_win1[3] <> $p_win2[3] Then
            $x1 = $p_win1[0]
            $y1 = $p_win1[1]
            $x2 = $x1 - $p_win1[2]
            $y2 = $y1
            WinMove($GUI2, "", $x2, $y2, $p_win1[2], $p_win1[3])
            WinMove($hExplorer, "", 0,0, $p_win2[2], $p_Win2[3])
        EndIf
    ElseIf $hWnd = $GUI2 Or $Dock = 2 Then
        If $p_win2[0] <> $x2 Or $p_win2[1] <> $y2 Then
            $x2 = $p_win2[0]
            $y2 = $p_win2[1]
            $x1 = $x2 + $p_win1[2]
            $y1 = $y2
            WinMove($GUI1, "", $x1, $y1)
            $Dock = 1
        EndIf
    ElseIf ($p_win1[0] <> $x1 Or $p_win1[1] <> $y1) And BitAND(WinGetState($GUI1), 16) Then
        WinSetState($GUI2, "", @SW_MINIMIZE)
    ElseIf ($p_win2[0] <> $x2 Or $p_win2[1] <> $y2) And BitAND(WinGetState($GUI2), 16) Then
        WinSetState($GUI1, "", @SW_MINIMIZE)
    ElseIf ($p_win1[0] <> $x1 Or $p_win1[1] <> $y1) And BitAND(WinGetState($GUI1), 2) Then
        WinSetState($GUI2, "", @SW_RESTORE)
    ElseIf ($p_win2[0] <> $x2 Or $p_win2[1] <> $y2) And BitAND(WinGetState($GUI2), 2) Then
        WinSetState($GUI1, "", @SW_RESTORE)
    EndIf

EndFunc  ;==>_KeepWindowsDocked

Func _WinMoved($hWndGUI, $MsgID, $wParam, $lParam)

    #forceref $hWndGUI, $MsgID, $wParam, $lParam
    If ($hWndGUI = $hMigration) Or ($hWndGUI = $hExplHolder) Then
        _KeepWindowsDocked($hWndGUI, $hMigration, $hExplHolder, $Dock, $x1, $x2, $y1, $y2)
    EndIf
    Return $GUI_RUNDEFMSG

EndFunc  ;==>_WinMoved

I hope that has gone some way to helping your project progress.

M23

[martin]

MikeOsdx,

Ok, here is where I have got to for the moment.

This script produces as embedded Explorer on the left and your Migration GUI on the right. They now follow each other like 2 very good friends ( ). However, I have only been able to get the simultaneaous resize to work for the Migration GUI - perhaps because of the the embedded Explorer, I cannot get the lefthand GUI to take focus and hence accept any resize commands. And yet it fires the message for moving without any problems - perhaps someone with more experience of these dark matters ( ) can explain that.

expandcollapse popup

#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <WinAPI.au3>

Opt("WinTitleMatchMode", 4)

$iWidth = 320
$iHeight = 460

;Create the GUI Window
Global $hMigration = GUICreate("Migration Assistant", $iWidth, $iHeight, Default, Default, $WS_SIZEBOX)
GUICtrlCreateLabel("Folders/Files to Migrate", 10, 10, ($iWidth - 20), 17)
GUICtrlSetResizing(-1, $GUI_DOCKALL)
GUICtrlCreateList("", 10, 35, $iWidth - 20, $iHeight - 60)
GUICtrlSetResizing(-1, $GUI_DOCKBORDERS)
GUISetState ()

;Identify the position of the AutoIT GUI
$WinPos = WinGetPos($hMigration)
Global $x1 = $WinPos[0]
Global $y1 = $WinPos[1]

; Set Explorer GUI coords
Global $x2 = $x1 - $iWidth
Global $y2 = $y1

; Create the Explorer GUI
Global $hExplHolder = GUICreate("Explorer", $iWidth, $iHeight, $x2, $y2, BitOr($GUI_SS_DEFAULT_GUI ,$WS_CLIPCHILDREN, $WS_SIZEBOX))
GUISetState ()

Run("explorer.exe /n, M:\") ; Set it the folder you want as a start point
WinWait("[CLASS:CabinetWClass]")
Global $hExplorer = WinGetHandle("[CLASS:CabinetWClass]")
_WinAPI_SetParent($hExplorer, $hExplHolder)
WinMove($hExplorer, "", 0, 0, $iWidth, $iHeight)
WinSetState($hExplorer, "", @SW_MAXIMIZE)

;Tell the _KeepWindowsDocked function to perform the initial dock
Global $Dock = 2
;Dock the windows now
_KeepWindowsDocked($hMigration, $hMigration, $hExplHolder, $Dock, $x1, $x2, $y1, $y2)

;Register messages
GUIRegisterMsg($WM_MOVE, "_WinMoved")
GUIRegisterMsg($WM_SIZE, "_WinMoved")

While 1
    $msg = GUIGetMsg()
    If $msg = $GUI_EVENT_CLOSE Then
        Exit
    EndIf

    ; Exit if Explorer window is shut
    If Not WinExists($hExplorer) Then Exit

WEnd

Func _KeepWindowsDocked($hWnd, $GUI1, $GUI2, $Dock, ByRef $x1, ByRef $x2, ByRef $y1, ByRef $y2)

 Local $p_win1 = WinGetPos($GUI1)
 Local $p_win2 = WinGetPos($GUI2)
    ; If Migration is active
 If $hWnd = $GUI1 Then
        ; If Migration has moved or has changed size
        If $p_win1[0] <> $x1 Or $p_win1[1] <> $y1 Or $p_win1[2] <> $p_win2[2] Or $p_win1[3] <> $p_win2[3] Then
            $x1 = $p_win1[0]
            $y1 = $p_win1[1]
            $x2 = $x1 - $p_win1[2]
            $y2 = $y1
            WinMove($GUI2, "", $x2, $y2, $p_win1[2], $p_win1[3])
            WinMove($hExplorer, "", 0,0, $p_win2[2], $p_Win2[3])
        EndIf
 ElseIf $hWnd = $GUI2 Or $Dock = 2 Then
        If $p_win2[0] <> $x2 Or $p_win2[1] <> $y2 Then
     $x2 = $p_win2[0]
            $y2 = $p_win2[1]
            $x1 = $x2 + $p_win1[2]
            $y1 = $y2
            WinMove($GUI1, "", $x1, $y1)
            $Dock = 1
        EndIf
 ElseIf ($p_win1[0] <> $x1 Or $p_win1[1] <> $y1) And BitAND(WinGetState($GUI1), 16) Then
 WinSetState($GUI2, "", @SW_MINIMIZE)
 ElseIf ($p_win2[0] <> $x2 Or $p_win2[1] <> $y2) And BitAND(WinGetState($GUI2), 16) Then
 WinSetState($GUI1, "", @SW_MINIMIZE)
 ElseIf ($p_win1[0] <> $x1 Or $p_win1[1] <> $y1) And BitAND(WinGetState($GUI1), 2) Then
 WinSetState($GUI2, "", @SW_RESTORE)
 ElseIf ($p_win2[0] <> $x2 Or $p_win2[1] <> $y2) And BitAND(WinGetState($GUI2), 2) Then
 WinSetState($GUI1, "", @SW_RESTORE)
 EndIf

EndFunc ;==>_KeepWindowsDocked

Func _WinMoved($hWndGUI, $MsgID, $wParam, $lParam)

 #forceref $hWndGUI, $MsgID, $wParam, $lParam
 If ($hWndGUI = $hMigration) Or ($hWndGUI = $hExplHolder) Then
 _KeepWindowsDocked($hWndGUI, $hMigration, $hExplHolder, $Dock, $x1, $x2, $y1, $y2)
 EndIf
 Return $GUI_RUNDEFMSG

EndFunc ;==>_WinMoved

I hope that has gone some way to helping your project progress.

M23

I don't know if this is an improvement but it looks a lot simpler to me.

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#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <WinAPI.au3>

Opt("WinTitleMatchMode", 4)

$iWidth = 320
$iHeight = 460

;Create the GUI Window
Global $hMigration = GUICreate("Migration Assistant", $iWidth*2, $iHeight, -1,-1,BitOr($GUI_SS_DEFAULT_GUI,$WS_CLIPCHILDREN, $WS_SIZEBOX))
GUICtrlCreateLabel("Folders/Files to Migrate", $iWidth, 10, ($iWidth - 20), 17)
GUICtrlSetResizing(-1, $GUI_DOCKTOP); + $GUI_DOCKTOP + $GUI_DOCKBOTTOM+ $GUI_DOCKRIGHT)
GUICtrlCreateList("", $iWidth, 35, $iWidth - 2, $iHeight - 35)
GUICtrlSetResizing(-1,$GUI_DOCKTOP + $GUI_DOCKBOTTOM); $GUI_DOCKBORDERS)
GUISetState()

Run("explorer.exe /n, C:\") ; Set it the folder you want as a start point
WinWait("[CLASS:CabinetWClass]")
Global $hExplorer = WinGetHandle("[CLASS:CabinetWClass]")
_WinAPI_SetParent($hExplorer, $hMigration)
WinMove($hExplorer, "", 0, 0, $iWidth, $iHeight)


GUIRegisterMsg($WM_SIZE, "_WinMoved");so we can resize explorer

While 1
    $msg = GUIGetMsg()
    If $msg = $GUI_EVENT_CLOSE Then
        _WinAPI_SetParent($hExplorer,0)
        WinClose($hExplorer)
    Exit
    EndIf

    ; Exit if Explorer window is shut
    If Not WinExists($hExplorer) Then Exit

WEnd


Func _WinMoved($hWndGUI, $MsgID, $wParam, $lParam)
    Local $clientWid = BitAnd($lparam,0xffff)
    Local $clientHt = BitShift($lparam,16)
    WinMove($hExplorer,"",0,0,$clientWid/2,$clientHt)
EndFunc

[Melba23]

MikeOsdx,

Another little improvement - if you move the explorer side and then immediately try resizing, it works (after a fashion!).

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#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <WinAPI.au3>

Opt("WinTitleMatchMode", 4)

$iWidth = 320
$iHeight = 460

;Create the GUI Window
Global $hMigration = GUICreate("Migration Assistant", $iWidth, $iHeight, Default, Default, $WS_SIZEBOX)
GUICtrlCreateLabel("Folders/Files to Migrate", 10, 10, ($iWidth - 20), 17)
GUICtrlSetResizing(-1, $GUI_DOCKALL)
GUICtrlCreateList("", 10, 35, $iWidth - 20, $iHeight - 60)
GUICtrlSetResizing(-1, $GUI_DOCKBORDERS)
GUISetState ()

;Identify the position of the AutoIT GUI
$WinPos = WinGetPos($hMigration)
Global $x1 = $WinPos[0]
Global $y1 = $WinPos[1]

; Set Explorer GUI coords
Global $x2 = $x1 - $iWidth
Global $y2 = $y1

; Create the Explorer GUI
Global $hExplHolder = GUICreate("Explorer", $iWidth, $iHeight, $x2, $y2, BitOr($GUI_SS_DEFAULT_GUI ,$WS_CLIPCHILDREN, $WS_SIZEBOX))
GUISetState ()

Run("explorer.exe /n, M:\")  ; Set it the folder you want as a start point
WinWait("[CLASS:CabinetWClass]")
Global $hExplorer = WinGetHandle("[CLASS:CabinetWClass]")
_WinAPI_SetParent($hExplorer, $hExplHolder)
WinMove($hExplorer, "", 0, 0, $iWidth, $iHeight)
WinSetState($hExplorer, "", @SW_MAXIMIZE)

;Tell the _KeepWindowsDocked function to perform the initial dock
Global $Dock = 2
;Dock the windows now
_KeepWindowsDocked($hMigration, $hMigration, $hExplHolder, $Dock, $x1, $x2, $y1, $y2)

;Register messages
GUIRegisterMsg($WM_MOVE, "_WinMoved")
GUIRegisterMsg($WM_SIZE, "_WinMoved")

While 1
    $msg = GUIGetMsg()
    If $msg = $GUI_EVENT_CLOSE Then
        Exit
    EndIf

    ; Exit if Explorer window is shut
    If Not WinExists($hExplorer) Then Exit

WEnd

Func _KeepWindowsDocked($hWnd, $GUI1, $GUI2, $Dock, ByRef $x1, ByRef $x2, ByRef $y1, ByRef $y2)

    Local $p_win1 = WinGetPos($GUI1)
    Local $p_win2 = WinGetPos($GUI2)
    ; If Migration is active
    If $hWnd = $GUI1 Then
        ; If Migration has moved or has changed size
        If $p_win1[0] <> $x1 Or $p_win1[1] <> $y1 Or $p_win1[2] <> $p_win2[2] Or $p_win1[3] <> $p_win2[3] Then
            $x1 = $p_win1[0]
            $y1 = $p_win1[1]
            $x2 = $x1 - $p_win1[2]
            $y2 = $y1
            WinMove($GUI2, "", $x2, $y2, $p_win1[2], $p_win1[3])
            Local $c_win2 = WinGetClientSize($GUI2)
            WinMove($hExplorer, "", 0,0, $c_win2[0], $c_win2[1])
        EndIf
    ElseIf $hWnd = $GUI2 Or $Dock = 2 Then
        If $p_win2[0] <> $x2 Or $p_win2[1] <> $y2  Or $p_win1[2] <> $p_win2[2] Or $p_win1[3] <> $p_win2[3] Then
            $x2 = $p_win2[0]
            $y2 = $p_win2[1]
            $x1 = $x2 + $p_win1[2]
            $y1 = $y2
            WinMove($GUI1, "", $x1, $y1, $p_win2[2], $p_win2[3])
            Local $c_win2 = WinGetClientSize($GUI2)
            WinMove($hExplorer, "", 0,0, $c_win2[0], $c_win2[1])
            $Dock = 1
        EndIf
    ElseIf ($p_win1[0] <> $x1 Or $p_win1[1] <> $y1) And BitAND(WinGetState($GUI1), 16) Then
        WinSetState($GUI2, "", @SW_MINIMIZE)
    ElseIf ($p_win2[0] <> $x2 Or $p_win2[1] <> $y2) And BitAND(WinGetState($GUI2), 16) Then
        WinSetState($GUI1, "", @SW_MINIMIZE)
    ElseIf ($p_win1[0] <> $x1 Or $p_win1[1] <> $y1) And BitAND(WinGetState($GUI1), 2) Then
        WinSetState($GUI2, "", @SW_RESTORE)
    ElseIf ($p_win2[0] <> $x2 Or $p_win2[1] <> $y2) And BitAND(WinGetState($GUI2), 2) Then
        WinSetState($GUI1, "", @SW_RESTORE)
    EndIf

EndFunc  ;==>_KeepWindowsDocked

Func _WinMoved($hWndGUI, $MsgID, $wParam, $lParam)

    #forceref $hWndGUI, $MsgID, $wParam, $lParam
    If ($hWndGUI = $hMigration) Or ($hWndGUI = $hExplHolder) Then
        If $hWndGUI = $hExplHolder Then WinSetState($hExplorer, "", @SW_DISABLE)
        _KeepWindowsDocked($hWndGUI, $hMigration, $hExplHolder, $Dock, $x1, $x2, $y1, $y2)
        WinSetState($hExplorer, "", @SW_ENABLE)
    EndIf
    Return $GUI_RUNDEFMSG

EndFunc  ;==>_WinMoved

That is it for today - I will try sleeping on it!

M23

P.S. I like martin's approach - will it meet your requirements?

Edited November 4, 2009 by Melba23

[PsaltyDS]

I got interested and gave it a try. Trying to maintain right/left docking of two windows together, resize Explorer to match client area, and maintain Z-order of the other window when one is moved. Plus, with all the handles declared Global, I didn't see why so many things had to be passed to the function. All it really needs to know is which window moved:

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#include <GUIConstantsEx.au3>
#include <WindowsConstants.au3>
#include <WinAPI.au3>
#include <Constants.au3>

Opt("WinTitleMatchMode", 4)

Global $hMigration, $hExplHolder, $hExplorer, $sStartDir = "D:\"
Global $iWidth = 320, $iHeight = 460

; Create the (left) Explorer GUI
$hExplHolder = GUICreate("Explorer", $iWidth, $iHeight, Default, Default, BitOR($GUI_SS_DEFAULT_GUI, $WS_CLIPCHILDREN, $WS_SIZEBOX))
Run('explorer.exe /n, "' & $sStartDir & '"')
WinWait("[CLASS:CabinetWClass]")
$hExplorer = WinGetHandle("[CLASS:CabinetWClass]")
_WinAPI_SetParent($hExplorer, $hExplHolder)
WinMove($hExplorer, "", 0, 0, $iWidth, $iHeight)
WinSetState($hExplorer, "", @SW_MAXIMIZE)

; Create the (right) GUI Window
$hMigration = GUICreate("Migration Assistant", $iWidth, $iHeight, Default, Default, $WS_SIZEBOX)
GUICtrlCreateLabel("Folders/Files to Migrate", 10, 10, ($iWidth - 20), 17)
GUICtrlSetResizing(-1, $GUI_DOCKALL)
GUICtrlCreateList("", 10, 35, $iWidth - 20, $iHeight - 60)
GUICtrlSetResizing(-1, $GUI_DOCKBORDERS)

; Show the GUIs
GUISetState(@SW_SHOW, $hMigration)
GUISetState(@SW_SHOW, $hExplHolder)
_KeepWindowsDocked($hExplHolder)

;Register messages
GUIRegisterMsg($WM_MOVE, "_WinMoved")
GUIRegisterMsg($WM_SIZE, "_WinMoved")

ConsoleWrite("Debug:  $hExplHolder = " & $hExplHolder & @LF)
ConsoleWrite("Debug:  $hExplorer = " & $hExplorer & @LF)
ConsoleWrite("Debug:  $hMigration = " & $hMigration & @LF)

While 1
    $msg = GUIGetMsg()
    If $msg = $GUI_EVENT_CLOSE Then
        Exit
    EndIf

    ; Exit if Explorer window is shut
    If Not WinExists($hExplorer) Then Exit
WEnd

; $hWnd = hwnd of window that changed (matches either $hExplHolder or $hMigration)
; Left ($hExplHolder) or Right ($hMigration) window will be docked to the one that changed
; If $hExplHolder changes, resize $hExplorer to fit client area
Func _KeepWindowsDocked($hChanged)
    ConsoleWrite("Debug:  _KeepWindowsDocked(" & $hChanged & ")" & @LF)
    Local $aPosExplHolder = WinGetPos($hExplHolder)
    Local $iStateExplHolder = WinGetState($hExplHolder)
    Local $aClientExplHolder = WinGetClientSize($hExplHolder)
    Local $aPosMigration = WinGetPos($hMigration)
    Local $iStateMigration = WinGetState($hMigration)

    ; Match state if neccessary
    If BitAND($iStateExplHolder, 16) <> BitAND($iStateMigration, 16) Then
        ; They don't match
        If $hChanged = $hExplHolder Then
            If BitAND($iStateExplHolder, 16) Then
                WinSetState($hMigration, "", @SW_MINIMIZE)
            Else
                WinSetState($hMigration, "", @SW_RESTORE)
            EndIf
        ElseIf $hChanged = $hMigration Then
            If BitAND($iStateMigration, 16) Then
                WinSetState($hExplHolder, "", @SW_MINIMIZE)
            Else
                WinSetState($hExplHolder, "", @SW_RESTORE)
            EndIf
        Else
            Return 0
        EndIf
        Return 1
    EndIf

    ; Match docked pos
    If $hChanged = $hExplHolder Then
        WinMove($hMigration, "", $aPosExplHolder[0] + $aPosExplHolder[2], $aPosExplHolder[1]) ; Move $hMigration to dock
        _WinAPI_SetWindowPos($hMigration, $hExplHolder, 0, 0, 0, 0, $SWP_NOMOVE + $SWP_NOSIZE) ; Set Z order
        WinMove($hExplorer, "", 0, 0, $aClientExplHolder[0], $aClientExplHolder[1]) ; Move $hExplorer to fit client area
    ElseIf $hChanged = $hMigration Then
        WinMove($hExplHolder, "", $aPosMigration[0] - $aPosExplHolder[2], $aPosMigration[1])
        _WinAPI_SetWindowPos($hExplHolder, $hMigration, 0, 0, 0, 0, $SWP_NOMOVE + $SWP_NOSIZE) ; Set Z order
    Else
        Return 0
    EndIf

    ; Done
    Return 1
EndFunc   ;==>_KeepWindowsDocked

Func _WinMoved($hWndGUI, $MsgID, $wParam, $lParam)
    If ($hWndGUI = $hMigration) Or ($hWndGUI = $hExplHolder) Then _KeepWindowsDocked($hWndGUI)
    Return $GUI_RUNDEFMSG
EndFunc   ;==>_WinMoved

I don't even know if that's what was wanted, but it was an interesting exercise anyway.