_GDIPlus_ImageLoadFromFile auch anderes?

;~ #AutoIt3Wrapper_au3check_parameters=-d -w 1 -w 2 -w 3 -w 4 -w 5 -w 6
#include-once
#include <GDIPlus.au3>
#include <Memory.au3>

_GDIPlus_Startup()
OnAutoItExitRegister("__GDIPlus_Shutdown")

;======================================================================================
; Function Name: Load_BMP_From_Mem
; Description: Loads an image which is saved as a binary string and converts it to a bitmap or hbitmap
;
; Parameters: $bImage: the binary string which contains any valid image which is supported by GDI+
; Optional: $hHBITMAP: if false a bitmap will be created, if true a hbitmap will be created
;
; Remark: hbitmap format is used generally for GUI internal images, $bitmap is more a GDI+ image format
; Don't forget _GDIPlus_Startup() and _GDIPlus_Shutdown()
;
; Requirement(s): GDIPlus.au3, Memory.au3 and _GDIPlus_BitmapCreateDIBFromBitmap() from WinAPIEx.au3
; Return Value(s): Success: handle to bitmap (GDI+ bitmap format) or hbitmap (WinAPI bitmap format),
; Error: 0
; Error codes: 1: $bImage is not a binary string
; 2: unable to create stream on HGlobal
; 3: unable to create bitmap from stream
;
; Author(s): UEZ
; Additional Code: thanks to progandy for the MemGlobalAlloc and tVARIANT lines and
; Yashied for _GDIPlus_BitmapCreateDIBFromBitmap() from WinAPIEx.au3
; Version: v0.97 Build 2012-04-10 Beta
;=======================================================================================
Func Load_BMP_From_Mem($bImage, $hHBITMAP = False)
If Not IsBinary($bImage) Then Return SetError(1, 0, 0)
Local $aResult
Local Const $memBitmap = Binary($bImage) ;load image saved in variable (memory) and convert it to binary
Local Const $len = BinaryLen($memBitmap) ;get length of image
Local Const $hData = _MemGlobalAlloc($len, $GMEM_MOVEABLE) ;allocates movable memory ($GMEM_MOVEABLE = 0x0002)
Local Const $pData = _MemGlobalLock($hData) ;translate the handle into a pointer
Local $tMem = DllStructCreate("byte[" & $len & "]", $pData) ;create struct
DllStructSetData($tMem, 1, $memBitmap) ;fill struct with image data
_MemGlobalUnlock($hData) ;decrements the lock count associated with a memory object that was allocated with GMEM_MOVEABLE
$aResult = DllCall("ole32.dll", "int", "CreateStreamOnHGlobal", "handle", $pData, "int", True, "ptr*", 0) ;Creates a stream object that uses an HGLOBAL memory handle to store the stream contents
If @error Then Return SetError(2, 0, 0)
Local Const $hStream = $aResult[3]
$aResult = DllCall($ghGDIPDll, "uint", "GdipCreateBitmapFromStream", "ptr", $hStream, "int*", 0) ;Creates a Bitmap object based on an IStream COM interface
If @error Then Return SetError(3, 0, 0)
Local Const $hBitmap = $aResult[2]
Local $tVARIANT = DllStructCreate("word vt;word r1;word r2;word r3;ptr data; ptr")
DllCall("oleaut32.dll", "long", "DispCallFunc", "ptr", $hStream, "dword", 8 + 8 * @AutoItX64, _
"dword", 4, "dword", 23, "dword", 0, "ptr", 0, "ptr", 0, "ptr", DllStructGetPtr($tVARIANT)) ;release memory from $hStream to avoid memory leak
$tMem = 0
$tVARIANT = 0
If $hHBITMAP Then
Local Const $hHBmp = _GDIPlus_BitmapCreateDIBFromBitmap($hBitmap)
_GDIPlus_BitmapDispose($hBitmap)
Return $hHBmp
EndIf
Return $hBitmap
EndFunc ;==>Load_BMP_From_Mem

Func _GDIPlus_BitmapCreateDIBFromBitmap($hBitmap)
Local $tBIHDR, $Ret, $tData, $pBits, $hResult = 0
$Ret = DllCall($ghGDIPDll, 'uint', 'GdipGetImageDimension', 'ptr', $hBitmap, 'float*', 0, 'float*', 0)
If (@error) Or ($Ret[0]) Then Return 0
$tData = _GDIPlus_BitmapLockBits($hBitmap, 0, 0, $Ret[2], $Ret[3], $GDIP_ILMREAD, $GDIP_PXF32ARGB)
$pBits = DllStructGetData($tData, 'Scan0')
If Not $pBits Then Return 0
$tBIHDR = DllStructCreate('dword;long;long;ushort;ushort;dword;dword;long;long;dword;dword')
DllStructSetData($tBIHDR, 1, DllStructGetSize($tBIHDR))
DllStructSetData($tBIHDR, 2, $Ret[2])
DllStructSetData($tBIHDR, 3, $Ret[3])
DllStructSetData($tBIHDR, 4, 1)
DllStructSetData($tBIHDR, 5, 32)
DllStructSetData($tBIHDR, 6, 0)
$hResult = DllCall('gdi32.dll', 'ptr', 'CreateDIBSection', 'hwnd', 0, 'ptr', DllStructGetPtr($tBIHDR), 'uint', 0, 'ptr*', 0, 'ptr', 0, 'dword', 0)
If (Not @error) And ($hResult[0]) Then
DllCall('gdi32.dll', 'dword', 'SetBitmapBits', 'ptr', $hResult[0], 'dword', $Ret[2] * $Ret[3] * 4, 'ptr', DllStructGetData($tData, 'Scan0'))
$hResult = $hResult[0]
Else
$hResult = 0
EndIf
_GDIPlus_BitmapUnlockBits($hBitmap, $tData)
Return $hResult
EndFunc ;==>_GDIPlus_BitmapCreateDIBFromBitmap

Func __GDIPlus_Shutdown()
_GDIPlus_Shutdown()
EndFunc ;==>GDIPlus_Shutdown