gdiplus is eating all my RAM

[Praxxley]

Hi everyone
I'm trying to put two pictures together (first picture on top, second on bottom) and then cut it verticaly and save them..
My script works so far but it eats all of my RAM. I dispose all graphics, bitmaps and images and i tried different orders but i can't find the problem Here is my code ($dir1 is the path to the first image, $dir2 to the second and $dirdest is only a part of a path for examle "C:testdir3" and 3 will be used to save 3_1.jpg and 3_2.jpg) :
 

expandcollapse popup

Func _glueImage($dir1,$dir2,$dirdest)
    $hwnd = GUICreate("Clone", 1, 1)
    $graphics = _GDIPlus_GraphicsCreateFromHWND($hwnd)
    $imagefromfile=_GDIPlus_ImageLoadFromFile($dir1)
    Local $iW1=_GDIPlus_ImageGetWidth($imagefromfile)
    Local $iH1=_GDIPlus_ImageGetHeight($imagefromfile)
    $imagefromfile2=_GDIPlus_ImageLoadFromFile($dir2)
    Local $iW2=_GDIPlus_ImageGetWidth($imagefromfile2)
    Local $iH2=_GDIPlus_ImageGetHeight($imagefromfile2)
    If($iW1>$iW2) Then
        $bitmap = _GDIPlus_BitmapCreateFromGraphics($iW1, $iH1+$iH2, $graphics)
    Else
        $bitmap = _GDIPlus_BitmapCreateFromGraphics($iW2, $iH1+$iH2, $graphics)
    EndIf
    $backbuffer = _GDIPlus_ImageGetGraphicsContext($bitmap)
    _GDIPlus_GraphicsDrawImageRect($backbuffer, $imagefromfile, 0, 0,$iW1,$iH1)
    _GDIPlus_GraphicsDrawImageRect($backbuffer, $imagefromfile2, 0, $iH1,$iW2,$iH2)
    $graphics2=_GDIPlus_GraphicsCreateFromHWND($hwnd)
    $bitmap2 = _GDIPlus_BitmapCreateFromGraphics($iW1/2, $iH1+$iH2, $graphics2)
    $bitmap2 = _GDIPlus_BitmapCloneArea($bitmap,0,0,$iW1/2,$iH1+$iH2)
    _GDIPlus_ImageSaveToFile($bitmap2,$dirdest&"_1.jpg")
    $bitmap2 = _GDIPlus_BitmapCloneArea($bitmap,$iW1/2,0,$iW2/2,$iH1+$iH2)
    _GDIPlus_ImageSaveToFile($bitmap2,$dirdest&"_2.jpg")

    Local $mem = MemGetStats()
    ConsoleWrite(($mem[1]-$mem[2])/1000&"MB ram in use"&@CRLF)

    _GDIPlus_ImageDispose($imagefromfile)
    _GDIPlus_ImageDispose($imagefromfile2)
    
    Local $mem = MemGetStats()
    ConsoleWrite(($mem[1]-$mem[2])/1000&"MB ram in use"&@CRLF)

    _GDIPlus_BitmapDispose($bitmap)
    _GDIPlus_BitmapDispose($bitmap2)

    Local $mem = MemGetStats()
    ConsoleWrite(($mem[1]-$mem[2])/1000&"MB ram in use"&@CRLF)

    _GDIPlus_GraphicsDispose($graphics)
    _GDIPlus_GraphicsDispose($graphics2)

    Local $mem = MemGetStats()
    ConsoleWrite(($mem[1]-$mem[2])/1000&"MB ram in use"&@CRLF)

    _GDIPlus_GraphicsDispose($backbuffer)

    Local $mem = MemGetStats()
    ConsoleWrite(($mem[1]-$mem[2])/1000&"MB ram in use"&@CRLF)

    GUIDelete($hwnd)

EndFunc

It seems like $graphics and $graphics2 do not free their ram..(watch console) Help me please what did i do wrong?

[JohnOne]

I think with some objects you might need _WinAPI_DeleteObject()

Not all of them though, try it on each one per time to find the culprit.

[UEZ]

You are creating several bitmaps/image using one variable. That's not a good idea.

Example:

$bitmap2 = _GDIPlus_BitmapCreateFromGraphics($iW1/2, $iH1+$iH2, $graphics2)
    $bitmap2 = _GDIPlus_BitmapCloneArea($bitmap,0,0,$iW1/2,$iH1+$iH2)
    _GDIPlus_ImageSaveToFile($bitmap2,$dirdest&"_1.jpg")
    $bitmap2 = _GDIPlus_BitmapCloneArea($bitmap,$iW1/2,0,$iW2/2,$iH1+$iH2)

Use one variable for one bitmap/image handle and dispose it afterwards or dispose it before using the variable again.

Br,

UEZ

Edited September 25, 2013 by UEZ

[Praxxley]

Oops i didnt know that _GDIPlus_BitmapCloneArea creates a new bitmap.

Thank you for your help i will try it as soon as i can.

[DatMCEyeBall]

Help file:

Remarks

When you are done with the Bitmap object, call _GDIPlus_BitmapDispose to release the resources

Have a look at each function in the help file and if you should dispose it then add it to your code.

Edited September 26, 2013 by DatMCEyeBall

[Praxxley]

Finaly had time to test it. It now works great
Thanks for your support!

The solution (in case someone else has the same problem) :

$bitmap2 = _GDIPlus_BitmapCloneArea($bitmap,0,0,$iW1/2,$iH1+$iH2)
_GDIPlus_ImageSaveToFile($bitmap2,$dirdest&"_1.jpg")
_GDIPlus_BitmapDispose($bitmap2)
$bitmap2 = _GDIPlus_BitmapCloneArea($bitmap,$iW1/2,0,$iW2/2,$iH1+$iH2)
_GDIPlus_ImageSaveToFile($bitmap2,$dirdest&"_2.jpg")
_GDIPlus_BitmapDispose($bitmap2)

Always dispose the bitmap you want to save to. Otherwise _GDIPlus_BitmapCloneArea will overwrite the variable and the bitmap remains in ram.