Releasing an Object.

[Carlo84]

From: http://www.autoitscript.com/autoit3/docs/intro/ComRef.htm

When you assign an Object variable a different value, the 'pointer' will automatically be released. You can, for instance, force deletion of an Object by assigning it any number or any text value.

$oHTTP = ObjCreate("winhttp.winhttprequest.5.1")  ; Object is created
$oHTTP = 0                                        ; Object is deleted

But when i use ObjCreate in my script (in this case "ImageMagickObject.MagickImage.1") the memory usage of my script goes up (1k) but it wont go down after releasing the object.

is there anyway to get completely rid of this?

PS: creating the object again after "releasing" it does not cause memory usage to go up again

[PsaltyDS]

There is a DLL call to release working memory from the process, but it isn't worth worrying about.

[Carlo84]

There are running multiple instances of my exe doing diffrent things, the diffrence of memory per instance all toghetter makes it worth it as it makes up for a huge diffrence, especially since they are idle most of the time, and run allong a program that requires a high amount of CPU and memory recourses.

[Carlo84]

Thanks for the pointer, i think something in here will proof usefull :-)

[Edit:] The solution i used:

Func _ObjRelease(ByRef $Object)
    $Object = 0
    Local $ai_Handle = DllCall("kernel32.dll", 'int', 'OpenProcess', 'int', 0x1f0fff, 'int', False, 'int', @AutoItPID)
    Local $ai_Return = DllCall("psapi.dll", 'int', 'EmptyWorkingSet', 'long', $ai_Handle[0])
    DllCall('kernel32.dll', 'int', 'CloseHandle', 'int', $ai_Handle[0])
    Return $ai_Return[0]
EndFunc   ;==>_ObjRelease

thanks to this post

Edited April 16, 2011 by Djarlo