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Writeprocessmemory syntax

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Ok hello MPGH community i am having some C++ troubs
I am making a stand alone hack (not a dll that needs to be injected) and i have a question that deals with the syntaxing of WriteProcessMemory.

Code:

WriteProcessMemory(ProcessHandle,(LPVOID*)(DWORD)address, &value , MY QUESTION,NULL);

How do i know how many bytes i just wrote? For instance, for an ammo address, (which lets just say is 0x0FAA458B) i write the value 99. What would my bytes be?

Also i have another quick question. Looking at some pointers for Combat Arms, they use something that is cshell.dll+0xHexAddress. Would i use the same kind of method for the address? i am very new to game hacking, so sorry if this is really simple

Originally Posted by djtrickdog

Ok hello MPGH community i am having some C++ troubs
I am making a stand alone hack (not a dll that needs to be injected) and i have a question that deals with the syntaxing of WriteProcessMemory.

Code:

WriteProcessMemory(ProcessHandle,(LPVOID*)(DWORD)address, &value , MY QUESTION,NULL);

You should use sizeof linky

Originally Posted by Xealot

You should use sizeof linky

of so if i just use sizeof(myvaluevariable) it should be found automaticly? Sweet. And what if my hex address is something like 0x0f0f0f (6 hex digits long) or 0x0f0f0f0f (8 long) does this matter about anything?

No it doesn't matter, just do sizeof(int) or sizeof( long ) where int and long are your variable types

Why isnt my value being written to my address?
C++ pastebin - collaborative debugging tool
Im testing with a sonic game right now with a static ring address

I think it has something to do with the HANDLE being passed into WriteProcessMemory.

Try modifying this function first from:

Code:

void GetProcess(LPSTR windowname)

Code:

HANDLE GetProcess( LPSTR windowname )
{
// Keep everything as it is but at the end :

return processHandle;
}

Then in the function:

Code:

void ModifyAddr(int address, int value)

//  change it to 

void ModifyAddr( HANDLE handle, int address, int value )
{
WriteProcessMemory(handle,(LPVOID*)address, &value , sizeof(value) ,NULL);
}

Then when using these two modified functions you can:

Code:

HANDLE handle = GetProcess(....);

ModifyAddr( handle, ...... );

Let me know if that works. Fingers crossed :P

ill try it thanks
Here is after fixing with your edits, my code looks like:
C++ pastebin - collaborative debugging tool

ok i get errors:

Code:

 C:Dev-Cpptester.cpp In function `void* GetProcess(CHAR*)': 
21 C:Dev-Cpptester.cpp `ProcessHandle' undeclared (first use this function) 
  (Each undeclared identifier is reported only once for each function it appears in.) 
 C:Dev-CppMakefile.win [Build Error]  [venom.o] Error 1

change ProcessHandle = OpenProcess(PROCESS_ALL_ACCESS,0,pid);

into

HANDLE ProcessHandle = OpenProcess(PROCESS_ALL_ACCESS,0,pid);

and change vid GetProcess(..)

into

HANDLE GetProcess(...)

The first error is because you are going to return a handle so the return TYPE is HANDLE. The second error was you weren't declaring ProcessHandle as a HANDLE it was just nothing.

vid GetProcess(..) ? if you mean void Getprocess, i dont have that anywhere in my code

Sorry I meant HANDLE GetProcess(..)

cool it works! Thanks alot! You have msn or aim?

I have msn but I'm not on it a lot, if ya want you can PM on here

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Home › Forum › Programming › C++/C Programming › Writeprocessmemory syntax

Writeprocessmemory syntax

Posts 1–12 of 12 · Page 1 of 1

Writeprocessmemory syntax

Ok hello MPGH community i am having some C++ troubs
I am making a stand alone hack (not a dll that needs to be injected) and i have a question that deals with the syntaxing of WriteProcessMemory.

Code:

WriteProcessMemory(ProcessHandle,(LPVOID*)(DWORD)address, &value , MY QUESTION,NULL);

Originally Posted by djtrickdog

Ok hello MPGH community i am having some C++ troubs
I am making a stand alone hack (not a dll that needs to be injected) and i have a question that deals with the syntaxing of WriteProcessMemory.

Code:

WriteProcessMemory(ProcessHandle,(LPVOID*)(DWORD)address, &value , MY QUESTION,NULL);

You should use sizeof linky

Originally Posted by Xealot

You should use sizeof linky

No it doesn't matter, just do sizeof(int) or sizeof( long ) where int and long are your variable types

Why isnt my value being written to my address?
C++ pastebin - collaborative debugging tool
Im testing with a sonic game right now with a static ring address

I think it has something to do with the HANDLE being passed into WriteProcessMemory.

Try modifying this function first from:

Code:

void GetProcess(LPSTR windowname)

Code:

HANDLE GetProcess( LPSTR windowname )
{
// Keep everything as it is but at the end :

return processHandle;
}

Then in the function:

Code:

void ModifyAddr(int address, int value)

//  change it to 

void ModifyAddr( HANDLE handle, int address, int value )
{
WriteProcessMemory(handle,(LPVOID*)address, &value , sizeof(value) ,NULL);
}

Then when using these two modified functions you can:

Code:

HANDLE handle = GetProcess(....);

ModifyAddr( handle, ...... );

Let me know if that works. Fingers crossed :P

ill try it thanks
Here is after fixing with your edits, my code looks like:
C++ pastebin - collaborative debugging tool

ok i get errors:

Code:

 C:Dev-Cpptester.cpp In function `void* GetProcess(CHAR*)': 
21 C:Dev-Cpptester.cpp `ProcessHandle' undeclared (first use this function) 
  (Each undeclared identifier is reported only once for each function it appears in.) 
 C:Dev-CppMakefile.win [Build Error]  [venom.o] Error 1

vid GetProcess(..) ? if you mean void Getprocess, i dont have that anywhere in my code

Sorry I meant HANDLE GetProcess(..)

cool it works! Thanks alot! You have msn or aim?

I have msn but I'm not on it a lot, if ya want you can PM on here

Posts 1–12 of 12 · Page 1 of 1

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Similar Threads

WriteProcessMemory(); helpBy hileci555 in C++/C Programming
2Last post 18y ago
[Help]I get these SYNTAX errors.Please HelpBy phoenixraider in C++/C Programming
2Last post 17y ago
[C++] WriteProcessMemory WorkSpaceBy Toymaker in C++/C Programming
1Last post 17y ago
writeprocessmemory functionBy qsc in C++/C Programming
14Last post 17y ago
[Request] WriteProcessMemory ExampleBy PlSlYlClHlO in C++/C Programming
5Last post 17y ago

Tags for this Thread

#syntax #writeprocessmemory