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I have already made a regarding the same issue. But its old enough to start the discussion again there. I wanted to have a custom scrollbar for an edit control. This is the script, it works as required. CScrollBar #include-once #include <GDIP.au3> ;http://www.autoitscript.com/forum/topic/106021-gdipau3/ #include <WinAPIEx.au3> #include <GuiConstantsEx.au3> #include <Constants.au3> #include <WindowsConstants.au3> #include <ScrollBarConstants.au3> #include <Misc.au3> #include <GUIEdit.au3> #include <Array.au3> Global $iWidth_VSCROLL = _WinAPI_GetSystemMetrics($SM_CXVSCROLL) Global $hGraphic, $hGraphicGUI, $hBMPBuff ;Double-Click Global $iDoubleClickTime = DllCall("user32.dll", "uint", "GetDoubleClickTime") $iDoubleClickTime = $iDoubleClickTime[0] ;User-Custom Messages Global $WM_UPDATETHUMB = $WM_APP + 11 ;Called when the height of the thumb has to be changed. Global $WM_THUMBMOVE = $WM_APP + 12 ;Called when the Thumb has been clicked Global $WM_ARROWDOWN = $WM_APP + 13 ;Called when the Arrow buttons have been clicked. Global $WM_PAINTSCROLLBAR = $WM_APP + 14 ;Implements the painting of the scroll bar over the NC area of the EditBox. Global Const $tagNCCALCSIZE_PARAMS = $tagRECT & ";" & $tagRECT & ";" & $tagRECT & ";ptr PWINDOWPOS" ; Register callback function and obtain handle to _New_WndProc Global $___hNew_WndProc = DllCallbackRegister("_New_WndProc", "int", "hwnd;uint;wparam;lparam") ; Get pointer to _New_WndProc Global $___pNew_WndProc = DllCallbackGetPtr($___hNew_WndProc) Global $___cEdit ; Handle of the Edit Global $___pOld_WndProc ; Old Window Procedure's Address _GDIPlus_Startup() Global $hPen = _GDIPlus_PenCreate(0xAAFCD667, 2), _ $hBrush = _GDIPlus_BrushCreateSolid(0xAAFCD667), _ $hFormat = _GDIPlus_StringFormatCreate(), _ $hFamily = _GDIPlus_FontFamilyCreate("Wingdings"), _ $hPath = _GDIPlus_PathCreate() Func Startup_CustomScrollBar($hEdit) $___cEdit = $hEdit ;get the handle of the edit $___pOld_WndProc = _SubClass($hEdit, $___pNew_WndProc) ;store the old WndProc ;post a WM_NCCALCSIZE msg. _WinAPI_SetWindowPos($hEdit, Default, Default, Default, Default, Default, $SWP_FRAMECHANGED) EndFunc ;==>Startup_CustomScrollBar Func Shutdown_CustomScrollBar();Mem Release ;unsubclass the control _SubClass($___cEdit, $___pOld_WndProc) ;dispose the resources _Gdiplus_PathDispose($hPath) _GDIPlus_PenDispose($hPen) _GDIPlus_BrushDispose($hBrush) _GDIPlus_StringFormatDispose($hFormat) _GDIPlus_FontFamilyDispose($hFamily) DllCallbackFree($___hNew_WndProc) EndFunc ;==>Shutdown_CustomScrollBar ;The path of the Top Arrow button ;This could be rotated to obtain the Bottom Arrow button's path. Func TopBtn_Path(ByRef $hPath, $iX, $iY, $iSide) ;* Not required when the path is in order. _GDIPlus_PathStartFigure($hPath) ;* _GDIPlus_PathAddLine($hPath, $iX + $iSide, $iY + $iSide, $iX + $iSide, $iY) _GDIPlus_PathAddLine($hPath, $iX + $iSide, $iY, $iX, $iY) _GDIPlus_PathAddLine($hPath, $iX, $iY, $iX, $iY + $iSide) _GDIPlus_PathAddArc($hPath, $iX, $iY + $iSide / 2, $iSide, $iSide, 180, 180) _GDIPlus_PathCloseFigure($hPath) ;* EndFunc ;==>TopBtn_Path ;The Path of the Thumb Func ThumbBtn_Path(ByRef $hPath, $iX, $iY, $iHeight, $iSide) ;* Not required when the path is in order. _GDIPlus_PathStartFigure($hPath) ;* _GDIPlus_PathAddLine($hPath, $iX, $iY, $iX, $iY + $iHeight) _GDIPlus_PathAddArc($hPath, $iX, $iY + $iHeight - $iSide / 2, $iSide, $iSide, 180, -180) _GDIPlus_PathAddLine($hPath, $iX + $iSide, $iY + $iHeight, $iX + $iSide, $iY) _GDIPlus_PathAddArc($hPath, $iX, $iY - $iSide / 2, $iSide, $iSide, -180, 180) _GDIPlus_PathCloseFigure($hPath) ;* EndFunc ;==>ThumbBtn_Path Func _SubClass($hWnd, $pNew_WindowProc) Local $iRes = _WinAPI_SetWindowLong($hWnd, -4, $pNew_WindowProc) If @error Then Return SetError(1, 0, 0) If $iRes = 0 Then Return SetError(1, 0, 0) Return SetError(0, 0, $iRes) EndFunc ;==>_SubClass ;The new window procedure of the edit control. Func _New_WndProc($hWnd, $iMsg, $wParam, $lParam) Static $aRegion[3], $i_Thumb_Height = -1, $i_TrackHeight, $iY_Thumb = -1, $iPixel_Per_Line_Scale = 1, $iThumb_Pic = 0, $iTrack_Pic = 0 Static $hDC, $hGfx Switch $iMsg Case $WM_NCCALCSIZE $tNCCALCSIZE_PARAMS = DllStructCreate($tagNCCALCSIZE_PARAMS, $lParam) DllStructSetData($tNCCALCSIZE_PARAMS, 1, DllStructGetData($tNCCALCSIZE_PARAMS, 1) + 2) DllStructSetData($tNCCALCSIZE_PARAMS, 2, DllStructGetData($tNCCALCSIZE_PARAMS, 2) + 2) DllStructSetData($tNCCALCSIZE_PARAMS, 3, DllStructGetData($tNCCALCSIZE_PARAMS, 3) - 2 - $iWidth_VSCROLL) ;Space for VSCROLL Bar DllStructSetData($tNCCALCSIZE_PARAMS, 4, DllStructGetData($tNCCALCSIZE_PARAMS, 4) - 2) Return 0 Case $WM_NCPAINT ;the first draw. If $i_Thumb_Height = -1 Then _SendMessage($hWnd, $WM_UPDATETHUMB, 0, 0) Case $WM_PAINTSCROLLBAR $iRet = _WinAPI_CallWindowProc($___pOld_WndProc, $hWnd, $iMsg, _ $wParam, $lParam) $iWidth = _WinAPI_GetWindowWidth($hWnd) - _WinAPI_GetClientWidth($hWnd) - 4 $iHeight = _WinAPI_GetClientHeight($hWnd) ;Set the Range SetInRange($i_Thumb_Height, 15, $i_TrackHeight) SetInRange($iY_Thumb, 0, $i_TrackHeight - $i_Thumb_Height) $hHbmp = hHbmp_ScrollButtons_And_Track($iWidth, $iHeight, 0xFF000000 + GUICtrlGetBkColor($hWnd, _WinAPI_GetClientWidth($hWnd), $iHeight), $aRegion, _Iif($iY_Thumb < 0, 0, $iY_Thumb), $i_Thumb_Height) ; GUICtrlSendMsg($iTrack_Pic, 370, $IMAGE_BITMAP, $hHbmp) ;370 = $STM_SETBITMAP _WinAPI_DeleteObject($hHbmp) _WinAPI_EmptyWorkingSet() Return $iRet Case $WM_NCHITTEST $tPoint = DllStructCreate($tagPoint) DllStructSetData($tPoint, 1, _WinAPI_LoWord($lParam)) DllStructSetData($tPoint, 2, _WinAPI_HiWord($lParam)) _WinAPI_ScreenToClient($hWnd, $tPoint) $tRect = Return_CLientRect($hWnd) If _WinAPI_PtInRect($tRect, $tPoint) Then Return $HTBORDER Case $WM_NCLBUTTONDOWN $tPoint = _WinAPI_GetMousePos(True, $hWnd) If _GDIPlus_RegionIsVisiblePoint($aRegion[0], DllStructGetData($tPoint, 1) - _WinAPI_GetClientWidth($hWnd) - 2, DllStructGetData($tPoint, 2) - 2, $hGfx) Then _WinAPI_PostMessage($hWnd, $WM_ARROWDOWN, $SB_LINEUP, 0) ElseIf _GDIPlus_RegionIsVisiblePoint($aRegion[1], DllStructGetData($tPoint, 1) - _WinAPI_GetClientWidth($hWnd) - 2, DllStructGetData($tPoint, 2) - 2, $hGfx) Then _WinAPI_PostMessage($hWnd, $WM_ARROWDOWN, $SB_LINEDOWN, 1) ElseIf _GDIPlus_RegionIsVisiblePoint($aRegion[2], DllStructGetData($tPoint, 1) - _WinAPI_GetClientWidth($hWnd) - 2, DllStructGetData($tPoint, 2) - 2, $hGfx) Then _WinAPI_PostMessage($hWnd, $WM_THUMBMOVE, 0, 0) Else $tRect = Return_CLientRect($hWnd) If _WinAPI_PtInRect($tRect, $tPoint) Then $iY_Thumb = DllStructGetData($tPoint, 2) - (($i_Thumb_Height / 2) + ($iWidth_VSCROLL - 2)) $iLine_Scroll = Floor(($iY_Thumb / $iPixel_Per_Line_Scale)) $iLine_Scroll_Count = $iLine_Scroll - _GUICtrlEdit_GetFirstVisibleLine($hWnd) _SendMessage($hWnd, $EM_LINESCROLl, 0, $iLine_Scroll_Count) _SendMessage($hWnd, $WM_PAINTSCROLLBAR, 0, 0) EndIf EndIf Case $WM_CHAR, $WM_UNDO, $EM_UNDO, $WM_HOTKEY _WinAPI_PostMessage($hWnd, $WM_UPDATETHUMB, 0, 0) Case $WM_SIZE, $WM_SIZING $iRet = _WinAPI_CallWindowProc($___pOld_WndProc, $hWnd, $iMsg, _ $wParam, $lParam) $aPos = ControlGetPos("", "", $hWnd) If $iTrack_Pic Then GUICtrlSetPos($iTrack_Pic, $aPos[0] + 2 + _WinAPI_GetClientWidth($hWnd), $aPos[1] + 2, $iWidth_VSCROLL, _WinAPI_GetClientHeight($hWnd)) Else $iTrack_Pic = GUICtrlCreatePic("", $aPos[0] + 2 + _WinAPI_GetClientWidth($hWnd), $aPos[1] + 2, $iWidth_VSCROLL, _WinAPI_GetClientHeight($hWnd)) GUICtrlSetBkColor(-1, 0) EndIf _SendMessage($hWnd, $WM_UPDATETHUMB) If $hDC Then ;release the old ones _GDIPlus_GraphicsDispose($hGfx) _WinAPI_ReleaseDC($hDC, $hWnd) EndIf ;update the new graphics and DC $hDC = _WinAPI_GetWindowDC($hWnd) $hGfx = _GDIPlus_GraphicsCreateFromHDC($hDC) Return $iRet Case $WM_KEYDOWN Switch $wParam Case $VK_DOWN, $VK_UP, $VK_PRIOR, $VK_NEXT ;Down $iRet = _WinAPI_CallWindowProc($___pOld_WndProc, $hWnd, $iMsg, _ $wParam, $lParam) _SendMessage($hWnd, $WM_UPDATETHUMB) Return $iRet Case $VK_END, $VK_HOME If _IsPressed("11") Then ;CTRL Pressed _SendMessage($hWnd, $WM_VSCROLL, _WinAPI_MakeLong($SB_BOTTOM + $VK_END - $wParam, 0)) $iY_Thumb = _Iif($wParam = $VK_END, $i_TrackHeight - $i_Thumb_Height, 0) ;Redraw the window, _Winapi_RedrawWindow didn't work _SendMessage($hWnd, $WM_PAINTSCROLLBAR) EndIf EndSwitch Case $WM_MOUSEWHEEL $iDelta = _WinAPI_HiWord($wParam) $iCount = Abs($iDelta) / 120 For $i = 1 To $iCount _SendMessage($hWnd, $WM_ARROWDOWN, _Iif($iDelta > 0, $SB_LINEUP, $SB_LINEDOWN), -$iDelta) Next Case $WM_UPDATETHUMB ;Calculate the required vars $i_LineCount = _GUICtrlEdit_GetLineCount($hWnd) $i_ScrollBarHeight = _WinAPI_GetClientHeight($hWnd) $i_LineHeight = GetLineHeight($hWnd) $iMax_LineVisible = Floor($i_ScrollBarHeight / $i_LineHeight) $i_PageHeight = $i_LineCount * $i_LineHeight $i_TrackHeight = $i_ScrollBarHeight - (2 * ($iWidth_VSCROLL - 2)) $i_CurLine = _GUICtrlEdit_GetFirstVisibleLine($hWnd) ;Set the Thumb size $i_Thumb_Height = $i_TrackHeight * ($iMax_LineVisible * $i_LineHeight / $i_PageHeight) ;Set the Scale $iPixel_Per_Line_Scale = ($i_TrackHeight - $i_Thumb_Height) / ($i_LineCount - $iMax_LineVisible) ;Set the Thumb Pos $iY_Thumb = (($i_CurLine / ($i_LineCount - $iMax_LineVisible)) * ($i_TrackHeight - $i_Thumb_Height)) ;Redraw the window, _Winapi_RedrawWindow didn't work _SendMessage($hWnd, $WM_PAINTSCROLLBAR, 0, 0) Case $WM_THUMBMOVE $iLine_InPage = _WinAPI_GetClientHeight($hWnd) / GetLineHeight($hWnd) $Y_Offset = _WinAPI_GetMousePosY(True, $hWnd) - $iY_Thumb $iY_Thumb_Prev = $iY_Thumb Local $iOutofBounds = False While _IsPressed("01") $Mouse_Y = _WinAPI_GetMousePosY(True, $hWnd) #cs - need to be improved Select ;halt if out of bounds Case $Mouse_Y < $Y_Offset Or $Mouse_Y - $Y_Offset > $i_TrackHeight - $i_Thumb_Height Switch $iOutofBounds Case True Sleep(10) ContinueLoop Case False $iOutofBounds = True EndSwitch EndSelect #ce Switch $Mouse_Y - $Y_Offset ;pause if mouse isn't moved Case $iY_Thumb Sleep(10) ContinueLoop Case Else $iY_Thumb = $Mouse_Y - $Y_Offset $iOutofBounds = True $iLine_Scroll = Floor(($iY_Thumb / $iPixel_Per_Line_Scale)) $iLine_Scroll_Count = $iLine_Scroll - _GUICtrlEdit_GetFirstVisibleLine($hWnd) _SendMessage($hWnd, $EM_LINESCROLl, 0, $iLine_Scroll_Count) _SendMessage($hWnd, $WM_PAINTSCROLLBAR) Sleep(20) EndSwitch WEnd Case $WM_ARROWDOWN ;lParam = +ve : Down Arrow lParam = -ve : Up Arrow Local $iDirection = $wParam If $wParam = 0 Then $iDirection = _Iif($lParam > 0, $SB_LINEDOWN, $SB_LINEUP) _GUICtrlEdit_Scroll($hWnd, $iDirection) $iY_Thumb = _Iif($lParam > 0, $iY_Thumb + $iPixel_Per_Line_Scale, $iY_Thumb - $iPixel_Per_Line_Scale) _SendMessage($hWnd, $WM_PAINTSCROLLBAR, 0, 0) ;Continuous dragging Static $i_Start_Drag = False If _IsPressed("01") And $i_Start_Drag = False Then $iTimer = TimerInit() While _IsPressed("01") If TimerDiff($iTimer) >= $iDoubleClickTime Then $i_Start_Drag = True ExitLoop EndIf WEnd EndIf If _IsPressed("01") Then Sleep(15) _WinAPI_PostMessage($hWnd, $WM_ARROWDOWN, $wParam, $lParam) Else $i_Start_Drag = False EndIf EndSwitch ; Pass to the Original Window Procedure. Return _WinAPI_CallWindowProc($___pOld_WndProc, $hWnd, $iMsg, _ $wParam, $lParam) EndFunc ;==>_New_WndProc Func hHbmp_ScrollButtons_And_Track($iWidth, $iHeight, $iBkColor, ByRef $aRegion, $iThumb_Y, $iThumb_Height) If $iHeight < 2 * ($iWidth_VSCROLL - 2) Then Return 0 Local $hFont = _GDIPlus_FontCreate($hFamily, $iWidth_VSCROLL / 2 - 1, 2) ;Image Containing the Scroll Bar $hBmp = _GDIPlus_BitmapCreateFromScan0($iWidth, $iHeight) $hGfx_Bmp = _GDIPlus_ImageGetGraphicsContext($hBmp) _GDIPlus_GraphicsSetSmoothingMode($hGfx_Bmp, 2) _GDIPlus_GraphicsClear($hGfx_Bmp, $iBkColor) ;Set Bkcolor of the Bmp to that of the Edit #cs - Doesn't work as expected ;Invalidate and erase the part of the edit containing ScrollBar. $tRect = Return_CLientRect($hWnd, $iX, $iY, $iX + $iWidth, $iY + $iHeight) _WinAPI_RedrawWindow($hWnd, $tRect, 0, BitOR($RDW_INVALIDATE, $RDW_ERASE)) #ce _Gdiplus_PathReset($hPath) ;Top Button TopBtn_Path($hPath, 0, 1, $iWidth_VSCROLL - 2) $aRegion[0] = _GDIPlus_RegionCreateFromPath($hPath) _Gdiplus_GraphicsFillPath($hGfx_Bmp, $hPath) ;The Curve part _Gdiplus_PathReset($hPath) ;Bottom Button TopBtn_Path($hPath, 0, $iHeight - $iWidth_VSCROLL + 1, $iWidth_VSCROLL - 2) _PathRotate($hPath, 180) $aRegion[1] = _GDIPlus_RegionCreateFromPath($hPath) _Gdiplus_GraphicsFillPath($hGfx_Bmp, $hPath) _Gdiplus_PathReset($hPath) ;Thumb ThumbBtn_Path($hPath, 0, $iWidth_VSCROLL - 2 + $iThumb_Y, $iThumb_Height, $iWidth_VSCROLL - 2) $aRegion[2] = _GDIPlus_RegionCreateFromPath($hPath) _Gdiplus_GraphicsFillPath($hGfx_Bmp, $hPath) ;Draw something more $iSide = $iWidth / 2 - 2 _GDIPlus_GraphicsDrawArc($hGfx_Bmp, $iWidth / 2 - $iSide, $iWidth_VSCROLL - 2 + $iThumb_Y + $iThumb_Height / 2 - $iSide, 2 * $iSide, 2 * $iSide, 51, 180, $hPen) $iSide = $iWidth / 3 - 2 _GDIPlus_GraphicsDrawArc($hGfx_Bmp, $iWidth / 2 - $iSide, $iWidth_VSCROLL - 2 + $iThumb_Y + $iThumb_Height / 2 - $iSide, 2 * $iSide, 2 * $iSide, 230, 110, $hPen) ;Arrows $tLayout = _GDIPlus_RectFCreate(0, 0, 0, 0) $aInfo = _GDIPlus_GraphicsMeasureString($hGfx_Bmp, ChrW(217), $hFont, $tLayout, $hFormat) _GDIPlus_GraphicsDrawStringEx($hGfx_Bmp, ChrW(217), $hFont, $aInfo[0], $hFormat, $hBrush) ;Up Arrow $tLayout = _GDIPlus_RectFCreate(0, $iHeight - ($iWidth_VSCROLL - 2) / 2, 0, 0) $aInfo = _GDIPlus_GraphicsMeasureString($hGfx_Bmp, ChrW(218), $hFont, $tLayout, $hFormat) _GDIPlus_GraphicsDrawStringEx($hGfx_Bmp, ChrW(218), $hFont, $aInfo[0], $hFormat, $hBrush) ;Down Arrow ;Draw the image on the GUI $hHbmp = _GDIPlus_BitmapCreateHBITMAPFromBitmap($hBmp) ;Mem Release _GDIPlus_FontDispose($hFont) _GDIPlus_GraphicsDispose($hGfx_Bmp) _GDIPlus_ImageDispose($hBmp) Return $hHbmp EndFunc ;==>hHbmp_ScrollButtons_And_Track #cs Func hHbmp_ScrollThumb($iWidth, $iHeight, $iBkColor, ByRef $aRegion, $iThumb_Y, $iThumb_Height) _Gdiplus_PathReset($hPath) ;Thumb ThumbBtn_Path($hPath, 0, $iWidth_VSCROLL - 2 + $iThumb_Y, $iThumb_Height, $iWidth_VSCROLL - 2) $aRegion[2] = _GDIPlus_RegionCreateFromPath($hPath) _Gdiplus_GraphicsFillPath($hGfx_Bmp, $hPath) ;Draw something more $iSide = $iWidth / 2 - 2 _GDIPlus_GraphicsDrawArc($hGfx_Bmp, $iWidth / 2 - $iSide, $iWidth_VSCROLL - 2 + $iThumb_Y + $iThumb_Height / 2 - $iSide, 2 * $iSide, 2 * $iSide, 51, 180, $hPen) $iSide = $iWidth / 3 - 2 _GDIPlus_GraphicsDrawArc($hGfx_Bmp, $iWidth / 2 - $iSide, $iWidth_VSCROLL - 2 + $iThumb_Y + $iThumb_Height / 2 - $iSide, 2 * $iSide, 2 * $iSide, 230, 110, $hPen) EndFunc ;==>hHbmp_ScrollThumb #ce Func SetInRange(ByRef $iVar, $iMin, $iMax) $iVar = _Iif($iVar < $iMin, $iMin, $iVar) $iVar = _Iif($iVar > $iMax, $iMax, $iVar) EndFunc ;==>SetInRange Func Return_CLientRect($hWnd, $iX = -1, $iY = -1, $iWidth = -1, $iHeight = -1) $tRect = DllStructCreate($tagRECT) If $iX = -1 And $iY = -1 And $iWidth = -1 And $iHeight = -1 Then DllStructSetData($tRect, 1, _WinAPI_GetClientWidth($hWnd) + 2) DllStructSetData($tRect, 2, 2) DllStructSetData($tRect, 3, _WinAPI_GetWindowWidth($hWnd) - 2) DllStructSetData($tRect, 4, _WinAPI_GetClientHeight($hWnd)) Else DllStructSetData($tRect, 1, $iX) DllStructSetData($tRect, 2, $iY) DllStructSetData($tRect, 3, $iX + $iWidth) DllStructSetData($tRect, 4, $iY + $iHeight) EndIf Return $tRect EndFunc ;==>Return_CLientRect Func GetCurLineIndex($hEdit) $aSel = _GUICtrlEdit_GetSel($hEdit) If $aSel[0] = $aSel[1] Then Return _GUICtrlEdit_LineFromChar($hEdit) Else _GUICtrlEdit_SetSel($hEdit, -1, -1) $iRet = _GUICtrlEdit_LineFromChar($hEdit) _GUICtrlEdit_SetSel($hEdit, $aSel[0], $aSel[1]) Return $iRet EndIf EndFunc ;==>GetCurLineIndex ;Thanks to Guinness - http://www.autoitscript.com/forum/topic/125684-guictrlgetbkcolor-get-the-background-color-of-a-control/ Func GUICtrlGetBkColor($hWnd, $iX = 0, $iY = 0) ;Modified - PXL If IsHWnd($hWnd) = 0 Then $hWnd = GUICtrlGetHandle($hWnd) Local $hDC = _WinAPI_GetDC($hWnd) Local $iColor = _WinAPI_GetPixel($hDC, $iX, $iY) _WinAPI_ReleaseDC($hWnd, $hDC) Return $iColor EndFunc ;==>GUICtrlGetBkColor ;Thanks to UEZ - http://www.autoitscript.com/forum/topic/150160-solved-gdi-path-transform-rotate/#entry1072071 Func _PathRotate($hPath, $iAngle) ;Modified - PXL $aBounds = _GdiPLus_PathGetWorldBounds($hPath) $hMatrix = _GDIPlus_MatrixCreate() _GDIPlus_MatrixTranslate($hMatrix, $aBounds[0] + $aBounds[2] / 2, $aBounds[1] + $aBounds[3] / 2) _GDIPlus_MatrixRotate($hMatrix, $iAngle) _GDIPlus_MatrixTranslate($hMatrix, -($aBounds[0] + $aBounds[2] / 2), -($aBounds[1] + $aBounds[3] / 2)) _GDIPlus_PathTransform($hPath, $hMatrix) _GDIPlus_MatrixDispose($hMatrix) EndFunc ;==>_PathRotate Func GetLineHeight($hEdit) ; Create DC $hDC = _WinAPI_GetDC($hEdit) $hFont = _SendMessage($hEdit, $WM_GETFONT) ; $WM_GetFont $hPrev_Font = _WinAPI_SelectObject($hDC, $hFont) Local $tSize = DllStructCreate("int;int") DllCall("gdi32.dll", "bool", "GetTextExtentPoint32W", "handle", $hDC, "wstr", "¤", "int", 1, "ptr", DllStructGetPtr($tSize)) _WinAPI_SelectObject($hDC, $hPrev_Font) _WinAPI_ReleaseDC($hEdit, $hDC) Return DllStructGetData($tSize, 2) EndFunc ;==>GetLineHeight Func MapWindowPoints($hWndFrom, $hWndTo, $lpPoints, $cPoints) $aRet = DllCall("user32.dll", "int", "MapWindowPoints", "hwnd", $hWndFrom, "hwnd", $hWndTo, "ptr", $lpPoints, "int", $cPoints) If @error Or $aRet[0] = 0 Then Return SetError(@error, 0, -1) Return $aRet[0] EndFunc ;==>MapWindowPoints Test #include <CScrollBar.au3> ;What ever name you give to the UDF $hGui = GUICreate("Paths", 400, 400, -1, -1, $WS_SIZEBOX + $WS_MINIMIZEBOX) Local $String For $i = 1 To 50 ;No. of lines For $j = Random(33, 127, 1) To Random(33, 127, 1) ;No of chars in a line $String &= Chr($j) Next $String &= @CRLF Next GUICtrlCreateEdit($String, 5, 5, 200, 300, BitOR($ES_WANTRETURN, $ES_AUTOVSCROLL)) Startup_CustomScrollBar(GUICtrlGetHandle(-1)) GUISetState() Do Switch GUIGetMsg() Case $GUI_EVENT_CLOSE Shutdown_CustomScrollBar() Exit EndSwitch Until 0 The CPU consumed upon moving the thumb is approx 12-18. So is it much enough to stop this project in Autoit. I just want some reviews and what users think about this script. The above is just implemented with Vertical Scrollbar. Thanks for you time

UDF provide graphical control based on static class. Button Progressbar v1.01. Fix on Syntax Error Checking Download Choose server where you will download: fxControl.zip - code.google.com (renamed from zettoControl_v1.02.zip) fxControl.zip - autoitscript.com The next version of this UDF will named as fxControl (Control Framework). Screenshot Sample Application using zettoControl Z-Compressor [link fixed] Clean PC Clean PC Source available in spoiler below 'Codice Sorgente' text, in that page. but download link: dead. Its still useful because at least the source are here while you able replace image file with what you have. zettoControl_v1.02.zip