Help GDIPlus load Image and save to same file?

[rapot 1]

I want to load an image file, edit..., then... save it.

Load image :

#include <gdip.au3>
#include <GDIPlus.au3>

$image = _GDIPlus_ImageLoadFromFile(@MyDocumentsDir & "\GDIPlus_Image.jpg")

Edit : put pixel

_GDIPlus_BitmapSetPixel($image, 15, 10, 0xffff00ff)

Save :

_GDIPlus_ImageSaveToFile($image, @MyDocumentsDir & "\GDIPlus_Image.jpg")

so it don't work.

Please help me.

[UEZ 1,087]

Try this here:

#include <GDIPlus.au3>

_GDIPlus_Startup()
Global Const $sFile = StringReplace(@AutoItExe, "autoit3.exe", "ExamplesGUITorus.png")
Global Const $hBrush = _GDIPlus_BrushCreateSolid(0x80FFFF00)
Global Const $hBitmap = _GDIPlus_BitmapCreateFromFile($sFile)
Global Const $iW = _GDIPlus_ImageGetWidth($hBitmap )
Global Const $iH = _GDIPlus_ImageGetHeight($hBitmap )
Global Const $hContext = _GDIPlus_ImageGetGraphicsContext($hBitmap)
_GDIPlus_GraphicsFillRect($hContext, $iW / 3, $iH / 3,  $iW / 3, $iH / 3, $hBrush)
_GDIPlus_ImageSaveToFile($hBitmap, @ScriptDir & "Test.jpg")
_GDIPlus_BitmapDispose($hBitmap)
_GDIPlus_GraphicsDispose($hContext)
_GDIPlus_BrushDispose($hBrush)
_GDIPlus_Shutdown()
ShellExecute(@ScriptDir & "Test.jpg")

Br,

UEZ

[rapot 1]

still save as different file. I want save :

_GDIPlus_ImageSaveToFile($hBitmap, $sFile)

overwrite not work?

[UEZ 1,087]

The file is locked by GDI+. Just save it with a different name and when file has been unlocked delete original file and rename new file back to original filename.

Br,

UEZ

Edited January 18, 2012 by UEZ