GDI+ Rotate total begginer

#include <APIConstants.au3>
#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>

OnAutoItExitRegister("OnAutoItExit")
_GDIPlus_Startup()

$Form1 = GUICreate("Form1", 593, 453, 193, 115)
GUICtrlCreateEdit("Hello There", 10, 10)
GUICtrlCreateButton("Get ctl image", 224, 176, 140, 30, 0)

GUISetState(@SW_SHOW)

While 1
$nMsg = GUIGetMsg()
Switch $nMsg
Case $GUI_EVENT_CLOSE
Exit
Case 4
GetControlBitmap(GUICtrlGetHandle(3), 180)
EndSwitch
WEnd

Func GetControlBitmap($hWnd, $iRotate = 0)


$Width = _WinAPI_GetWindowWidth($hWnd)
$Height = _WinAPI_GetWindowHeight($hWnd)

$hDC = _WinAPI_GetDC($hWnd)
$memDC = _WinAPI_CreateCompatibleDC($hDC)
$memBmp = _WinAPI_CreateCompatibleBitmap($hDC, $Width, $Height)
_WinAPI_SelectObject($memDC, $memBmp)

; use _WinAPI_BitBlt for copying
_WinAPI_BitBlt($memDC, 0, 0, $Width, $Height, $hDC, 0, 0, $SRCCOPY)


$hImage = _GDIPlus_BitmapCreateFromHBITMAP($memBmp)
If $iRotate Then
$hGraphics = _GDIPlus_ImageGetGraphicsContext($hImage)

$hMatrix = _GDIPlus_MatrixCreate()
_GDIPlus_MatrixRotate($hMatrix, $iRotate, False)

_GDIPlus_GraphicsSetTransform($hGraphics, $hMatrix)

;Again redraw the image so that it turns to 180degree. <<<<<<<<<<<<<<<<<<<<<<< dont know why it doesnt work
_GDIPlus_GraphicsDrawImage($hGraphics, $hImage, 0, 0)

;Lets save and find out what happens
_GDIPlus_ImageSaveToFile($hImage, @ScriptDir & '\ctl.bmp') ;.BMP
ShellExecute(@ScriptDir & '\ctl.bmp')

_GDIPlus_MatrixDispose($hMatrix)
_GDIPlus_GraphicsDispose($hGraphics)
EndIf

_WinAPI_ReleaseDC($hWnd, $hDC)
_WinAPI_DeleteDC($memDC)
_WinAPI_DeleteObject($memBmp)

Return $hImage

EndFunc ;==>GetControlBitmap

Func OnAutoItExit()

_GDIPlus_Shutdown()

EndFunc ;==>OnAutoItExit