DllCall Q

[Smed]

I finally have a real question.

Since the "ptr" type exists for DllCall parameters, I'm guessing that it actually works. The help file shows only very basic examples of calls, a search on the forum produced a lot of "thats not quite what I'm looking for" results.

I'm trying to call a DLL function that returns results in a buffer specified by the 3rd parameter. The results returned in the array by DllCall appears to be useless in this instance.

Can someone point me towards an example on how to do this?

Before someone says, "post your code", I'd like to point out that I'm not asking YOU to fix MY code, I'm asking for help on how to fix it myself. I'll post the code if and when I deem it usefull.

[Insolence]

I don't 100% understand what you're asking. If you posted an example it'd help me understand how to help you.

I think ptr can sometimes be int, though.

[Smed]

buffer sounds like a "str" to me... try it

<{POST_SNAPBACK}>

already tried that I just get the same string back.

OK, here's the code, in its current incarnation.... sigh.

$MAC = _GetMACFromIP ("192.168.1.1")
MsgBox (0, "MAC Value", $MAC)
;MsgBox (0, "MAC Value", $MAC[0]&"-"&$MAC[1]&"-"&$MAC[2]&"-"&$MAC[3]&"-"&$MAC[4])

Func _GetMACFromIP ($sIP)

  $bMAC = "hhhhhh"
  $r = DllCall ("Ws2_32.dll", "int", "inet_addr", "str", $sIP)
  $iIP = $r[0]
  $r = DllCall ("iphlpapi.dll", "int", "SendARP", "int", $iIP, "int", 0, "str", $bMAC, "int", 6)
  Return $bMAC
EndFunc

I've tried arrays, strings, you name it, and I only get bs results.

leave it to me to try something goofy for my first attempt at DllCall code.

Edited April 19, 2005 by Smed

[Ejoc]

wont the mac be in $r[3]

hmm that didnt work...

Edited April 19, 2005 by Ejoc

[Smed]

wont the mac be in $r[3]

hmm that didnt work...

<{POST_SNAPBACK}>

Yeh, I figured that you'd be interested in that function, but I had hoped to get it working before I started posting code.

[megahyperion]

I had a similar problem in this thread

http://www.autoitscript.com/forum/index.php?showtopic=10538

Never got it working

[Ejoc]

Got it working: http://www.autoitscript.com/forum/index.php?showtopic=10710