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This is a magnifier-color-picker thing mostly based on some code I found on Stack Overflow, of all places. At least all the clever bits are from there. 

I'd love to use this code inside an app I'm working on. But it has an issue. The first time the mag pops up it works perfectly, but the second and subsequent times, it's a boring grey square. 

One of you smart dudes will probably look at this and go, "Aha!", but I'm stumped.

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

MagWindow()
MagWindow()

; Magnifier-Color-Picker..
; Props to McBarby for the cross-hairs.
func MagWindow()

    global $iMagZoom = 5
    global $iMagWidth = Ceiling(100/$iMagZoom)
    global $iMagHeight = Ceiling(100/$iMagZoom)

    global $hDCDesk, $hDCZoom, $hPen
    global $hUser32 = DllOpen("user32.dll")
    global $hGDI32 = DllOpen("gdi32.dll")
    global $pixel_color, $mag_open = false
    local  $mX, $mY
    
    global $hCross = GUICreate('', 48, 48, -1, -1, $WS_POPUP, $WS_EX_TOPMOST)
    WinSetTrans($hCross, '', 0)
    GUISetCursor(3, 1, $hCross)

    global $hZoom = GUICreate("MagPicker", $iMagWidth * $iMagZoom, $iMagHeight * $iMagZoom, _
                    MouseGetPos(0), MouseGetPos(1), $WS_POPUP+$WS_BORDER, $WS_EX_TOPMOST)

    global $mag_label = GUICtrlCreateLabel("placehold", (($iMagHeight * $iMagZoom)/2)+2, ($iMagHeight * $iMagZoom) - 13, _
                            (($iMagHeight * $iMagZoom)/2)-3, 12, $SS_RIGHT)
    
    ; put this after the GUICreate()s so that it will not error on startup with mouse already moving. (now trapped! but we will leave them here.)
    global $__hMouseProc = DllCallbackRegister("_MouseProc", "long", "int;wparam;lparam")
    global $__hHook = _WinAPI_SetWindowsHookEx($WH_MOUSE_LL, DllCallbackGetPtr($__hMouseProc), _WinAPI_GetModuleHandle(0))
        
    GUISetState(@SW_SHOW, $hCross)
    GUISetState(@SW_SHOW, $hZoom)
    $mag_open = true
    
    ; once at start, then from the mouse-callback-function..
    _Magnify()
    
    while $mag_open
        Sleep(50)
        $mX = MouseGetPos(0)
        $mY = MouseGetPos(1)        
        $pixel_color = Hex(PixelGetColor($mX, $mY), 6)
        GUICtrlSetData ($mag_label, $pixel_color)
    wend
    
    GUIDelete($hZoom)
    GUIDelete($hCross)
    ReleaseHooks()
    
endfunc

func _Magnify($_iX=-1, $_iY=-1)
    local Static $fInit = true
    if $fInit then
        $fInit = False
        $hDCDesk = (DLLCall($hUser32, "int", "GetDC", "hwnd", 0))[0]
        $hDCZoom = (DLLCall($hUser32, "int", "GetDC", "hwnd", $hZoom))[0]
        $hPen = (DLLCall($hGDI32, "int", "CreatePen", "int", 0, "int", 3, "int", 0x008b9094))[0] ; 0=PS_SOLID, dark-blue (0x00BBGGRR)
        DLLCall($hGDI32, "int", "SelectObject", "int", $hDCZoom, "hwnd", $hPen)
        $_iX = MouseGetPos(0)
        $_iY = MouseGetPos(1)
    endif
    local $iW = $iMagWidth * $iMagZoom, $iH = $iMagHeight * $iMagZoom
    if not @error then
        DLLCall($hGDI32, "int", "StretchBlt", "int", $hDCZoom, "int", _
            0, "int", 0, "int", $iW, "int", $iH, "int", $hDCDesk, "int", _
            $_iX - $iMagWidth/2, "int", $_iY - $iMagHeight/2, "int", $iMagWidth ,"int", $iMagHeight, _
            "long", $SRCCOPY)
        ; draw the crosshair    (start x, start y, end x, end y)
        _GDI32_DrawLine($hDCZoom, ($iW/2)-2, $iH/8, ($iW/2)-2, 4*($iH/8)-6, $hGDI32)     ; vertical top
        _GDI32_DrawLine($hDCZoom, ($iW/2)-2, 5*($iH/8)-10, ($iW/2)-2, 7*($iH/8), $hGDI32) ; vertical bottom
        _GDI32_DrawLine($hDCZoom, $iW/8, ($iH/2)-2, (3*($iW/8))+6, ($iH/2)-2, $hGDI32)     ; horizontal left
        _GDI32_DrawLine($hDCZoom, 4*($iW/8)+3, ($iH/2)-2, 7*($iW/8), ($iH/2)-2, $hGDI32) ; horizontal right
    endif
endfunc

func _GDI32_DrawLine(ByRef $_hDC, $_iX0, $i_Y0, $_iX1, $i_Y1, $_hDll=-1)
    If $_hDll = -1 then $_hDll = "gdi32.dll"
    Local $tCurrent = DllStructCreate("struct; long X;long Y; endstruct")
    DllCall($_hDll, "int", "MoveToEx", "int", $_hDC, "int", $_iX0, "int", $i_Y0, "ptr", DllStructGetPtr($tCurrent))
    DllCall($_hDll, "int", "LineTo", "int", $_hDC, "int", $_iX1, "int", $i_Y1)
    return $tCurrent
endfunc

func _MouseProc($_nCode, $_wParam, $_lParam)
    local $tMSLLHOOKSTRUCT = DllStructCreate("struct; long X;long Y; endstruct; " & _
        "DWORD mouseData; DWORD flags; DWORD time; ULONG_PTR dwExtraInfo;endstruct", $_lParam)
    if $_nCode < 0 Then Return _WinAPI_CallNextHookEx($__hHook, $_nCode, $_wParam, $_lParam)
    local $iX = $tMSLLHOOKSTRUCT.X, $iY = $tMSLLHOOKSTRUCT.Y
    switch $_wParam
        case $WM_LBUTTONDOWN
            CloseMag()
        case $WM_MOUSEMOVE
            if not $mag_open then return
            WinMove($hCross, "", $iX -24, $iY -24)
            Local $iXz = ($iX +24 + $iMagWidth*$iMagZoom > @DesktopWidth) ? $iX -(24 + $iMagWidth*$iMagZoom) : $iX +24
            Local $iYz = ($iY +24 + $iMagHeight*$iMagZoom > @DesktopHeight) ? $iY -(24 + $iMagHeight*$iMagZoom) : $iY +24
            WinMove($hZoom, "", $iXz + $iMagWidth/2, $iYz)
            _Magnify($iX, $iY)
    endswitch
    return _WinAPI_CallNextHookEx($__hHook, $_nCode, $_wParam, $_lParam)
endfunc

func ReleaseHooks()
    DLLCall($hUser32, "int", "ReleaseDC", "int", $hDCZoom, "hwnd", $hPen)
    DLLCall($hUser32, "int", "ReleaseDC", "int", $hDCDesk, "hwnd", 0)
    DLLCall($hUser32, "int", "ReleaseDC", "int", $hDCZoom, "hwnd", 0)
    DllClose($hUser32)
    DllClose($hGDI32)
    _WinAPI_UnhookWindowsHookEx($__hHook)
    DllCallbackFree($__hMouseProc)
endfunc

func CloseMag()  ; called by mouse left click
    $mag_open = false
endfunc

 

Thanks for any and all insights!

;o) Cor

nothing is foolproof to the sufficiently talented fool..

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  • Developers

Nice ...   try this version and find the difference :)

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

MagWindow()
MagWindow()

; Magnifier-Color-Picker..
; Props to McBarby for the cross-hairs.
Func MagWindow()

    Global $iMagZoom = 5
    Global $iMagWidth = Ceiling(100 / $iMagZoom)
    Global $iMagHeight = Ceiling(100 / $iMagZoom)

    Global $hDCDesk = 0, $hDCZoom = 0, $hPen = 0
    Global $hUser32 = DllOpen("user32.dll")
    Global $hGDI32 = DllOpen("gdi32.dll")
    Global $pixel_color, $mag_open = False
    Local $mX = 0, $mY = 0

    Global $hCross = GUICreate('', 48, 48, -1, -1, $WS_POPUP, $WS_EX_TOPMOST)
    WinSetTrans($hCross, '', 0)
    GUISetCursor(3, 1, $hCross)

    Global $hZoom = GUICreate("MagPicker", $iMagWidth * $iMagZoom, $iMagHeight * $iMagZoom, _
            MouseGetPos(0), MouseGetPos(1), $WS_POPUP + $WS_BORDER, $WS_EX_TOPMOST)

    Global $mag_label = GUICtrlCreateLabel("placehold", (($iMagHeight * $iMagZoom) / 2) + 2, ($iMagHeight * $iMagZoom) - 13, _
            (($iMagHeight * $iMagZoom) / 2) - 3, 12, $SS_RIGHT)

    ; put this after the GUICreate()s so that it will not error on startup with mouse already moving. (now trapped! but we will leave them here.)
    Global $__hMouseProc = DllCallbackRegister("_MouseProc", "long", "int;wparam;lparam")
    Global $__hHook = _WinAPI_SetWindowsHookEx($WH_MOUSE_LL, DllCallbackGetPtr($__hMouseProc), _WinAPI_GetModuleHandle(0))

    GUISetState(@SW_SHOW, $hCross)
    GUISetState(@SW_SHOW, $hZoom)
    $mag_open = True

    ; once at start, then from the mouse-callback-function..
    _Magnify()

    While $mag_open
        Sleep(50)
        $mX = MouseGetPos(0)
        $mY = MouseGetPos(1)
        $pixel_color = Hex(PixelGetColor($mX, $mY), 6)
        GUICtrlSetData($mag_label, $pixel_color)
    WEnd

    GUIDelete($hZoom)
    GUIDelete($hCross)
    ReleaseHooks()

EndFunc   ;==>MagWindow

Func _Magnify($_iX = -1, $_iY = -1, $reset = False)
    Local Static $fInit = True
    If $fInit Then
        $fInit = False
        $hDCDesk = (DllCall($hUser32, "int", "GetDC", "hwnd", 0))[0]
        $hDCZoom = (DllCall($hUser32, "int", "GetDC", "hwnd", $hZoom))[0]
        $hPen = (DllCall($hGDI32, "int", "CreatePen", "int", 0, "int", 3, "int", 0x008b9094))[0] ; 0=PS_SOLID, dark-blue (0x00BBGGRR)
        DllCall($hGDI32, "int", "SelectObject", "int", $hDCZoom, "hwnd", $hPen)
        $_iX = MouseGetPos(0)
        $_iY = MouseGetPos(1)
    EndIf
    Local $iW = $iMagWidth * $iMagZoom, $iH = $iMagHeight * $iMagZoom
    If Not @error Then
        DllCall($hGDI32, "int", "StretchBlt", "int", $hDCZoom, "int", _
                0, "int", 0, "int", $iW, "int", $iH, "int", $hDCDesk, "int", _
                $_iX - $iMagWidth / 2, "int", $_iY - $iMagHeight / 2, "int", $iMagWidth, "int", $iMagHeight, _
                "long", $SRCCOPY)
        ; draw the crosshair    (start x, start y, end x, end y)
        _GDI32_DrawLine($hDCZoom, ($iW / 2) - 2, $iH / 8, ($iW / 2) - 2, 4 * ($iH / 8) - 6, $hGDI32) ; vertical top
        _GDI32_DrawLine($hDCZoom, ($iW / 2) - 2, 5 * ($iH / 8) - 10, ($iW / 2) - 2, 7 * ($iH / 8), $hGDI32) ; vertical bottom
        _GDI32_DrawLine($hDCZoom, $iW / 8, ($iH / 2) - 2, (3 * ($iW / 8)) + 6, ($iH / 2) - 2, $hGDI32) ; horizontal left
        _GDI32_DrawLine($hDCZoom, 4 * ($iW / 8) + 3, ($iH / 2) - 2, 7 * ($iW / 8), ($iH / 2) - 2, $hGDI32) ; horizontal right
    EndIf
    If $reset Then
        $fInit = True
    EndIf
EndFunc   ;==>_Magnify

Func _GDI32_DrawLine(ByRef $_hDC, $_iX0, $i_Y0, $_iX1, $i_Y1, $_hDll = -1)
    If $_hDll = -1 Then $_hDll = "gdi32.dll"
    Local $tCurrent = DllStructCreate("struct; long X;long Y; endstruct")
    DllCall($_hDll, "int", "MoveToEx", "int", $_hDC, "int", $_iX0, "int", $i_Y0, "ptr", DllStructGetPtr($tCurrent))
    DllCall($_hDll, "int", "LineTo", "int", $_hDC, "int", $_iX1, "int", $i_Y1)
    Return $tCurrent
EndFunc   ;==>_GDI32_DrawLine

Func _MouseProc($_nCode, $_wParam, $_lParam)
    Local $tMSLLHOOKSTRUCT = DllStructCreate("struct; long X;long Y; endstruct; " & _
            "DWORD mouseData; DWORD flags; DWORD time; ULONG_PTR dwExtraInfo;endstruct", $_lParam)
    If $_nCode < 0 Then Return _WinAPI_CallNextHookEx($__hHook, $_nCode, $_wParam, $_lParam)
    Local $iX = $tMSLLHOOKSTRUCT.X, $iY = $tMSLLHOOKSTRUCT.Y
    Switch $_wParam
        Case $WM_LBUTTONDOWN
            CloseMag()
        Case $WM_MOUSEMOVE
            If Not $mag_open Then Return
            WinMove($hCross, "", $iX - 24, $iY - 24)
            Local $iXz = ($iX + 24 + $iMagWidth * $iMagZoom > @DesktopWidth) ? $iX - (24 + $iMagWidth * $iMagZoom) : $iX + 24
            Local $iYz = ($iY + 24 + $iMagHeight * $iMagZoom > @DesktopHeight) ? $iY - (24 + $iMagHeight * $iMagZoom) : $iY + 24
            WinMove($hZoom, "", $iXz + $iMagWidth / 2, $iYz)
            _Magnify($iX, $iY)
    EndSwitch
    Return _WinAPI_CallNextHookEx($__hHook, $_nCode, $_wParam, $_lParam)
EndFunc   ;==>_MouseProc

Func ReleaseHooks()
    _Magnify(Default, Default, True)
    DllCall($hUser32, "int", "ReleaseDC", "int", $hDCZoom, "hwnd", $hPen)
    DllCall($hUser32, "int", "ReleaseDC", "int", $hDCDesk, "hwnd", 0)
    DllCall($hUser32, "int", "ReleaseDC", "int", $hDCZoom, "hwnd", 0)
    DllClose($hUser32)
    DllClose($hGDI32)
    _WinAPI_UnhookWindowsHookEx($__hHook)
    DllCallbackFree($__hMouseProc)
EndFunc   ;==>ReleaseHooks

Func CloseMag() ; called by mouse left click
    $mag_open = False
EndFunc   ;==>CloseMag

Jos

SciTE4AutoIt3 Full installer Download page   - Beta files       Read before posting     How to post scriptsource   Forum etiquette  Forum Rules 
 
Live for the present,
Dream of the future,
Learn from the past.
  :)

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      Here's some sample code: (I tried to make it look a bit less upsetting to those who know better, but be warned: not pretty.)
      #include <WinAPISys.au3> #include <WinAPI.au3> #include <WinAPIGdi.au3> #include <Array.au3> #include <WindowsConstants.au3> #include <GUIConstants.au3> Local $hWnd = GUICreate("Test", 200, 200) GUISetState(@SW_SHOW, $hWnd) Local $hGraph = _GraphStartUp($hWnd, 10, 30, 180, 180) Local $nData, $nDataMax = 1000, $hDataTimer = TimerInit() While GUIGetMsg() <> $GUI_EVENT_ClOSE If TimerDiff($hDataTimer) >= 150 Then $nData = Random(0, $nDataMax) _UpdateGraph($nData) $hDataTimer = TimerInit() EndIf Sleep(20) WEnd _GraphShutDown($hWnd, $hGraph) Exit Func _GraphStartUp($hWnd, $x, $y, $w, $h, $nUpdateTimes = 1000, $nResolution = 60) Global $hBluePen = _WinAPI_CreatePen($PS_SOLID, 2, _WinAPI_RGB(220, 0, 0)) Global $hGreyPen = _WinAPI_CreatePen($PS_DASH, 1, _WinAPI_RGB(100, 100, 100)) Global $hBlackPen = _WinAPI_CreatePen($PS_SOLID, 1, _WinAPI_RGB(0, 0, 0)) Global $hWhitePen = _WinAPI_CreatePen($PS_SOLID, 1, _WinAPI_RGB(255, 255, 255)) Global $nGraphRes = $nResolution Global $aGraphData[$nGraphRes + 1] For $i = 2 To $nGraphRes $aGraphData[$i] = 0 Next Global $hWinDC = _WinAPI_GetWindowDC($hWnd) Global $nGraphX = $x Global $nGraphY = $y Global $nGraphWidth = $w Global $nGraphHeight = $h Global $nGraphXUnit = $nGraphWidth / ($nGraphRes - 1) Global $nGraphBottomY = $nGraphY + $nGraphHeight Global $nGraphMaxX = $nGraphX + $nGraphWidth Global $aUpdateArea[4][2] = [[$nGraphX - 1, $nGraphY - 1], [$nGraphX - 1, $nGraphBottomY + 1], [$nGraphMaxX + 1, $nGraphBottomY + 1], [$nGraphMaxX + 1, $nGraphY - 1]] Global $pUpdateAreaRgn = _WinAPI_CreatePolygonRgn($aUpdateArea) Global $pTextRect = _WinAPI_CreateRectEx($nGraphX + 1, $nGraphY + 1, $nGraphWidth / 2, $nGraphHeight / 4) Global $nGreatestValue = 1 GLobal $pGraphArea = _WinAPI_CreateRectEx($nGraphX - 7, $nGraphY - 26, $nGraphWidth + 14, $nGraphHeight + 2) Global $pDrawCall = DllCallbackRegister('_DrawGraph', 'none', '') Global $pGraphTimer = _WinAPI_SetTimer($hWnd, 567891234, $nUpdateTimes, DllCallbackGetPtr($pDrawCall)) _DrawGraph() Return $pGraphTimer EndFunc Func _DrawGraph() Global $hPen $nGreatestValue = _ArrayMax($aGraphData, 1, 1) $hPen = _WinAPI_SelectObject($hWinDC, $hWhitePen) _WinAPI_PaintRgn($hWinDC, $pUpdateAreaRgn) $hPen = _WinAPI_SelectObject($hWinDC, $hGreyPen) _WinAPI_DrawLine($hWinDC, $nGraphX, $nGraphY, $nGraphMaxX, $nGraphY) _WinAPI_DrawLine($hWinDC, $nGraphX, $nGraphY + ($nGraphHeight / 2), $nGraphMaxX, $nGraphY + ($nGraphHeight / 2)) _WinAPI_DrawLine($hWinDC, $nGraphMaxX, $nGraphY, $nGraphMaxX, $nGraphBottomY) $hPen = _WinAPI_SelectObject($hWinDC, $hBluePen) For $i = 1 To $nGraphRes - 1 _WinAPI_DrawLine($hWinDC, $nGraphX + (($i - 1) * $nGraphXUnit), $nGraphBottomY - ($aGraphData[$i] / $nGreatestValue * $nGraphHeight), $nGraphX + ($i * $nGraphXUnit), $nGraphBottomY - ($aGraphData[$i + 1] / $nGreatestValue * $nGraphHeight)) Next $hPen = _WinAPI_SelectObject($hWinDC, $hBlackPen) _WinAPI_DrawLine($hWinDC, $nGraphX, $nGraphBottomY, $nGraphMaxX, $nGraphBottomY) _WinAPI_DrawLine($hWinDC, $nGraphX, $nGraphY, $nGraphX, $nGraphBottomY) _WinAPI_DrawText($hWinDC, Round($aGraphData[$nGraphRes], 2), $pTextRect, $DT_LEFT) EndFunc Func _UpdateGraph($nData) _ArrayAdd($aGraphData, $nData) _ArrayDelete($aGraphData, 1) EndFunc Func _GraphShutDown($hWnd, $pGraphTimer) _WinAPI_SelectObject($hWinDC, $hPen) _WinAPI_DeleteObject($hBlackPen) _WinAPI_DeleteObject($hGreyPen) _WinAPI_DeleteObject($hBluePen) _WinAPI_DeleteObject($hWhitePen) _WinAPI_ReleaseDC($hWnd, $hWinDC) _WinAPI_KillTimer($hWnd, $pGraphTimer) DllCallbackFree($pDrawCall) _WinAPI_RedrawWindow($hWnd, $pGraphArea) EndFunc  
    • By mLipok
      I check this snippet:
      https://www.autoitscript.com/wiki/Snippets_(_GUI_)#GUI_With_Scrollable_TabItem
      Modified them and I refactored. That's because I needed to adapt it to my needs (I'll write later).
      I thought I understood how it works.
      But I was wrong.
       
      This is my example which is showing what I want to achieve.
      #include <AutoItConstants.au3> #include <ButtonConstants.au3> #include <GUIConstantsEx.au3> #include <GuiScrollBars.au3> #include <GUIScrollbars_Ex.au3> #include <StringConstants.au3> #include <StructureConstants.au3> #include <WindowsConstants.au3> GUIRegisterMsg($WM_VSCROLL, WM_VSCROLL) _Example() Func _Example() Local $i_Count = 30 Local $a_Options_List[$i_Count + 1] $a_Options_List[0] = $i_Count For $i = 1 To $i_Count $a_Options_List[$i] = 'Test #' & $i Next ConsoleWrite("- " & _my_gui_Wybierz('Testing', $a_Options_List) & @CRLF) EndFunc ;==>_Example Func _my_gui_Wybierz($s_Description, $a_Options_List = "", $i_Left = Default, $i_Top = Default, $i_Width = Default, $hWnd_Parent = 0) ;~ WinSetOnTop($ACROBAT_TITLE, "", $WINDOWS_NOONTOP ) If $i_Left = Default Then $i_Left = -1 If $i_Top = Default Then $i_Top = -1 If $i_Width = Default Then $i_Width = 400 #Region _my_gui_Wybierz - GUI Creation Local $i_Height = 600 Local $hWND_DateForm = GUICreate("", $i_Width, $i_Height, $i_Left, $i_Top, BitOR(0, $WS_SIZEBOX), -1, $hWnd_Parent) WinSetOnTop($hWND_DateForm, "", $WINDOWS_ONTOP) Local $hChild = GUICreate("Scroll area", $i_Width - 15, $i_Height - 40, 0, 0, $WS_POPUP, $WS_EX_MDICHILD, $hWND_DateForm) _GUIScrollBars_Init($hChild, -1) _GUIScrollBars_ShowScrollBar($hChild, $SB_HORZ, False) _GUIScrollBars_ShowScrollBar($hChild, $SB_VERT, True) ;~ _GUIScrollBars_SetScrollRange($hChild, $SB_VERT, 3, 30) GUICtrlCreateLabel("", 10, 7, $i_Width - 45, 80) Local $id_Label1 = GUICtrlCreateLabel("", 10, 7 + 5, $i_Width - 45, 80 - 5) GUICtrlSetBkColor(-1, 0x88AABB) Local $a_List_of_Button_ID[$a_Options_List[0] + 1] For $IDX_Item = 1 To $a_Options_List[0] If $IDX_Item > 0 And $IDX_Item < 10 Then $a_List_of_Button_ID[$IDX_Item] = GUICtrlCreateButton( _ $IDX_Item & ". " & $a_Options_List[$IDX_Item], _ 10, 90 + ($IDX_Item - 1) * 21, $i_Width - 45, 20, BitOR($BS_LEFT, $WS_GROUP)) Else $a_List_of_Button_ID[$IDX_Item] = GUICtrlCreateButton( _ Chr(Asc('A') + $IDX_Item - 10) & ". " & $a_Options_List[$IDX_Item], _ 10, 90 + ($IDX_Item - 1) * 21, $i_Width - 45, 20, BitOR($BS_LEFT, $WS_GROUP)) EndIf Next Local $temp_var = $a_Options_List[0] Local $a_accelerators[($temp_var * 2) + 1][2] Local $i_Accelerators_Counter = 0 Local $i_Accelerator_Char1 = '' Local $i_Accelerator_Char2 = '' For $IDX_Item = 1 To $a_Options_List[0] If $IDX_Item > 9 Then $i_Accelerator_Char1 = Chr(Asc('A') + $IDX_Item - 10) $i_Accelerator_Char2 = Chr(Asc('a') + $IDX_Item - 10) Else $i_Accelerator_Char1 = "{NUMPAD" & $IDX_Item & "}" ;Chr(48 + $IDX_Item) $i_Accelerator_Char2 = $IDX_Item EndIf $a_accelerators[($IDX_Item * 2) - 1][0] = $i_Accelerator_Char1 $a_accelerators[($IDX_Item * 2) - 1][1] = $a_List_of_Button_ID[$IDX_Item] $a_accelerators[($IDX_Item * 2) - 1 + 1][0] = $i_Accelerator_Char2 $a_accelerators[($IDX_Item * 2) - 1 + 1][1] = $a_List_of_Button_ID[$IDX_Item] $i_Accelerators_Counter += 2 Next $a_accelerators[0][0] = $i_Accelerators_Counter GUISetAccelerators($a_accelerators, $hChild) GUICtrlSetData($id_Label1, $s_Description) GUISetState(@SW_SHOW, $hWND_DateForm) GUISetState(@SW_SHOW, $hChild) #EndRegion _my_gui_Wybierz - GUI Creation #Region - _my_gui_Wybierz - Handling messages Local $i_Selected_item = 0 Local $v_Return_Value = "" Local $a_GUI_Messages While 1 $a_GUI_Messages = GUIGetMsg($GUI_EVENT_ARRAY) If $a_GUI_Messages[0] = $GUI_EVENT_NONE Then ; do nothing ElseIf $a_GUI_Messages[1] = $hWND_DateForm Then If $a_GUI_Messages[0] = $GUI_EVENT_CLOSE Then ExitLoop ElseIf $a_GUI_Messages[1] <> $hChild Then ; .... Else For $IDX_Check = 1 To $a_Options_List[0] If $a_List_of_Button_ID[$IDX_Check] = $a_GUI_Messages[0] Then $v_Return_Value = GUICtrlRead($a_List_of_Button_ID[$IDX_Check]) $i_Selected_item = $IDX_Check $v_Return_Value = _RegExpFirstMatch($v_Return_Value, '.+?\. (.+)') ExitLoop 2 ; exit from ForNext and also from WhileWend EndIf Next EndIf WEnd #EndRegion - _my_gui_Wybierz - Handling messages GUIDelete($hChild) GUIDelete($hWND_DateForm) Return SetError(0, $i_Selected_item, $v_Return_Value) EndFunc ;==>_my_gui_Wybierz Func WM_VSCROLL($hWnd, $msg, $wParam, $lParam) #forceref $msg, $wParam, $lParam Local $nScrollCode = BitAND($wParam, 0x0000FFFF) Local $index = -1, $yChar, $yPos Local $Min, $Max, $Page, $Pos, $TrackPos For $x = 0 To UBound($aSB_WindowInfo) - 1 If $aSB_WindowInfo[$x][0] = $hWnd Then $index = $x $yChar = $aSB_WindowInfo[$index][3] ExitLoop EndIf Next If $index = -1 Then Return 0 ; Get all the vertial scroll bar information Local $tSCROLLINFO = _GUIScrollBars_GetScrollInfoEx($hWnd, $SB_VERT) $Min = DllStructGetData($tSCROLLINFO, "nMin") $Max = DllStructGetData($tSCROLLINFO, "nMax") $Page = DllStructGetData($tSCROLLINFO, "nPage") ; Save the position for comparison later on $yPos = DllStructGetData($tSCROLLINFO, "nPos") $Pos = $yPos $TrackPos = DllStructGetData($tSCROLLINFO, "nTrackPos") Switch $nScrollCode Case $SB_TOP ; user clicked the HOME keyboard key DllStructSetData($tSCROLLINFO, "nPos", $Min) Case $SB_BOTTOM ; user clicked the END keyboard key DllStructSetData($tSCROLLINFO, "nPos", $Max) Case $SB_LINEUP ; user clicked the top arrow DllStructSetData($tSCROLLINFO, "nPos", $Pos - 1) Case $SB_LINEDOWN ; user clicked the bottom arrow DllStructSetData($tSCROLLINFO, "nPos", $Pos + 1) Case $SB_PAGEUP ; user clicked the scroll bar shaft above the scroll box DllStructSetData($tSCROLLINFO, "nPos", $Pos - $Page) Case $SB_PAGEDOWN ; user clicked the scroll bar shaft below the scroll box DllStructSetData($tSCROLLINFO, "nPos", $Pos + $Page) Case $SB_THUMBTRACK ; user dragged the scroll box DllStructSetData($tSCROLLINFO, "nPos", $TrackPos) EndSwitch ; Set the position and then retrieve it. Due to adjustments ; by Windows it may not be the same as the value set. DllStructSetData($tSCROLLINFO, "fMask", $SIF_POS) _GUIScrollBars_SetScrollInfo($hWnd, $SB_VERT, $tSCROLLINFO) _GUIScrollBars_GetScrollInfo($hWnd, $SB_VERT, $tSCROLLINFO) ; If the position has changed, scroll the window and update it $Pos = DllStructGetData($tSCROLLINFO, "nPos") If ($Pos <> $yPos) Then _GUIScrollBars_ScrollWindow($hWnd, 0, $yChar * ($yPos - $Pos)) $yPos = $Pos EndIf Return $GUI_RUNDEFMSG EndFunc ;==>WM_VSCROLL Func _RegExpFirstMatch($s_Data, $s_Pattern) Local $a_Results = StringRegExp($s_Data, $s_Pattern, $STR_REGEXPARRAYGLOBALMATCH) If @error Then Return SetError(@error, @extended, '') Return SetError(0, UBound($a_Results), $a_Results[0]) EndFunc ;==>_RegExpFirstMatch  
      I have few problems with this code, and many question related to them.
      Question 1:
      How to make the Scrollbars to work ?
      I mean to scroll buttons.
      Question 2:
      Do I must to ues Child Window, or is it possible to scroll buttons without using Child Window ?
      Question 3:
      Why after uncommenting this following line:
      ;~ _GUIScrollBars_SetScrollRange($hChild, $SB_VERT, 3, 30) the ScrollBar disapears ?
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