Write into Memory?

BackupUser · Post by **BackupUser** » Sat Mar 30, 2002 10:36 pm

Restored from previous forum. Originally posted by skypa.

Hi again

is there a possibillity overwrite values (bytes) in the memory with PureBasic? For example writing new bytes on a adress like this one: 00401022 (memory of another process)

BackupUser · Post by **BackupUser** » Sun Mar 31, 2002 12:20 pm

Restored from previous forum. Originally posted by Rings.

PokeB(Adress,Value)

or if you want to write into a Programms Codememory see Topic 'Selfmodified Codeexample' under Tips & Tricks.

Its a long way to the top if you wanna .....CodeGuru

BackupUser · Post by **BackupUser** » Sun Mar 31, 2002 12:52 pm

Restored from previous forum. Originally posted by skypa.

Hm, i only get a warning that no writing on adress xxx possible is. Any way to overwrite memory which is still in use?

BackupUser · Post by **BackupUser** » Sun Mar 31, 2002 8:17 pm

Restored from previous forum. Originally posted by fred.

Hopefully not !

Fred - AlphaSND

BackupUser · Post by **BackupUser** » Sun Mar 31, 2002 8:40 pm

Restored from previous forum. Originally posted by skypa.

Hopefully not !

Fred - AlphaSND

Hm.. seems that there is no way to code kinda game trainer with PB, isn't it?

BackupUser · Post by **BackupUser** » Sun Mar 31, 2002 8:47 pm

Restored from previous forum. Originally posted by PB.

> seems that there is no way to code kinda game trainer with PB

Sure you can! Here's a Visual Basic example, which you should easily be able
to convert to PureBasic:

http://www.gamehacking.com/data/tutorials/prgvb2.shtml

PB - Registered PureBasic Coder

BackupUser · Post by **BackupUser** » Sun Mar 31, 2002 8:58 pm

Restored from previous forum. Originally posted by skypa.

> Sure you can! Here's a Visual Basic example, which you should easily be able
> to convert to PureBasic:

> http://www.gamehacking.com/data/tutorials/prgvb2.shtml

Big thanks PB

)

BackupUser · Post by **BackupUser** » Sun Mar 31, 2002 9:33 pm

Restored from previous forum. Originally posted by skypa.

hwnd.l = FindWindow_(Nullstring,"Rechner") ;Rechner = Calculator
If hwnd = 0
MessageRequester("","Window not found",0)
EndIf

proid.l=GetWindowThreadProcessID_(hwnd,pid)
pHandle.l = OpenProcess_(PROCESS_ALL_ACCESS, False, pid)

The pHandle is every time i run this code zero ?! Any ideas why or how to translate the API funtions to PureBasic in an other way?

BackupUser · Post by **BackupUser** » Sun Mar 31, 2002 10:12 pm

Restored from previous forum. Originally posted by Paul.

Ummm.... you aren't using any constants for starters.
I could be wrong but win API declares PROCESS_ALL_ACCESS as something like:
#STANDARD_RIGHTS_REQUIRED=$F0000
#SYNCHRONIZE=$100000
#PROCESS_ALL_ACCESS=#STANDARD_RIGHTS_REQUIRED|#SYNCHRONIZE|$FFF

and GetWindowThreadProcessId as:

Code: Select all

DWORD GetWindowThreadProcessId(
    HWND hWnd,	// handle of window
    LPDWORD lpdwProcessId 	// address of variable for process identifier
   );

so maybe...??
hWnd=FindWindow_(0,"Calculator")
proid=GetWindowThreadProcessID_(hWnd,@pid)

and maybe...
pHandle.l = OpenProcess_(#PROCESS_ALL_ACCESS, 0, pid)

I'm not saying this will work, but it's probably closer than what you have there.
Fred would probably know best

Edited by - paul on 31 March 2002 23:13:21

BackupUser · Post by **BackupUser** » Mon Apr 01, 2002 3:05 am

Restored from previous forum. Originally posted by PB.

> pHandle.l = OpenProcess_(PROCESS_ALL_ACCESS, False, pid)

Stick a # in front of the PROCESS... constant, and it should work.
If not, you'll need to declare the constant, as Paul said in his post.

Oh, and wherever Visual Basic has vbNullString, that just means "" in
PureBasic (ie. an empty string). And 0 for vbNull.

PB - Registered PureBasic Coder

Edited by - PB on 01 April 2002 04:07:56