Taking value from memory adress

[Archon]

Is in AutoIt function or possibility to take value from specific memory adress like pointers (ptr*) in C/Cpp? I know that DllStructCreate can do this but is's slow. I dont want make structures, only get value from adress.

[BrettF]

Forum search is broken.

Google search is broken.

[Archon]

Do you think that I didn't search first? I found nothing, mabye bad enquiries, I don't know :/

[Negative1]

I seam to remember using a UDF called "nomadmemory.au3" you might have some luck searching for it but I can't remember much about this UDF.

Cheers,

-1

[wolf9228]

Is in AutoIt function or possibility to take value from specific memory adress like pointers (ptr*) in C/Cpp? I know that DllStructCreate can do this but is's slow. I dont want make structures, only get value from adress.

There must be a structure to divide the memory data , but it possible

to get the value directly from the Ptr .

Check out this example

$str = "int var1;ushort var2;ushort var3;char var4[128]"

$a = DllStructCreate($str)

DllStructSetData($a,"var3",10554)

MsgBox(0,"DllStructSetData","var3 = " & DllStructGetData($a,"var3"))

$Ptr = DllStructGetPtr($a)

;int var1;ushort var2

$IntSize = DllStructGetSize(DllStructCreate("int"))

;int_var1 ==> int Size ==> 4 BYTE

$Size = $IntSize ;4 BYTE

$ushortSize = DllStructGetSize(DllStructCreate("ushort"))

;ushort_var2 ==> ushort Size ==> 2 BYTE

$Size += $ushortSize ;2 BYTE

$OutPtr = $Ptr + $Size ;Move Ptr To First Or Start ushort_var3 BYTE ==> 4 + 2 = 6

$b = DllStructCreate("ushort var3",$OutPtr)

$var3 = DllStructGetData($b,"var3")

MsgBox(0,"Get Data From Ptr","var3 = " & $var3)

$str = "int var1;ushort var2;ushort var3;char var4[128]"
$a = DllStructCreate($str)
DllStructSetData($a,"var3",10554)
MsgBox(0,"DllStructSetData","var3 = " & DllStructGetData($a,"var3"))
$Ptr = DllStructGetPtr($a)

;int var1;ushort var2

$IntSize = DllStructGetSize(DllStructCreate("int"))
;int_var1 ==> int Size ==> 4 BYTE
$Size = $IntSize ;4 BYTE

$ushortSize = DllStructGetSize(DllStructCreate("ushort"))
;ushort_var2 ==> ushort Size ==> 2 BYTE
$Size += $ushortSize ;2 BYTE

$OutPtr = $Ptr + $Size ;Move Ptr To First Or Start ushort_var3 BYTE ==> 4 + 2 = 6

$b = DllStructCreate("ushort var3",$OutPtr)
$var3 = DllStructGetData($b,"var3")
MsgBox(0,"Get Data From Ptr","var3 = " & $var3)

Edited February 24, 2010 by wolf9228

[Archon]

wolf9228, It works of course, but is still solution based on structures.

Negative1, I found this UDF and checked it. There were also used structures And some Dll's but useless for me in this case, howewer it look interesting.

I am going to start thinking that in AutoIt there is no simple and faster solution to get value from pointer like pass by structure. It's strange because in other way it's possible by Ptr() function

Someone have any ideas?