Solved Float value

[KR4N3N64]

Hi all, how can i write float value with this function: WriteProcessMemory(hProcHandle, address, value, sizeof(value), null) ?? thx

 

[NubTIK]

Float Values

I cant seem to undesrtand why this would be an issue:

float Value = 2.0f; 
float ValueArray[3] = {2.0f, 3.0f, 4.0f};

Writing the normal Float Value

WriteProcessMemory (Process, (LPVOID)(Address), &Value, sizeof(float), 0);

Writing the Float Array Value

WriteProcessMemory (Process, (LPVOID)(Address), &ValueArray, sizeof(float[3]), 0);

 

[thegood]

The question is, wether the program you want to hack, accept float values !?

Ok, float values are not given in the memory, there are just values, who "describe" the float value!
The function "WriteProcessMemory" only accepts LPCVOID, i thik this should be a 4 byte value !?
So we have to convert the float number to a 4 byte value:

#include <iostream>
#include <Windows.h>

using namespace std;

int main()
{
float fNumber = 3.141; //type in your number you want to "hack" here
float *pointer = &fNumber; //pointer to this number
int *intpointer = (int *) pointer; //cast to int-pointer

cout<<"Value as float: "<<*pointer<<" Value as 4-byte-integer: "<<*intpointer<<endl;
//you can get now the memory of the float-value as int-value

system("pause");

return 0;
}

the value as 4-byte-integer you can type in into the WriteProcessMemory-function
I hope this will work.

thegood

 

[KR4N3N64]

Hi, im trying to hack gta sa and the health bar is a float value but i cant write a value with WriteProcessMemory function. and i dont understand how to use your code, im new in c++.. Sry for my english

Note: The address has only one offset

 

[Typ3Cast]

static void WriteFloat(LPVOID Address, float Data)
{
unsigned long protect;
VirtualProtectEx(hProc, (void*)Address, 4,PAGE_EXECUTE_READWRITE, &protect);
if (!WriteProcessMemory(hProc, (LPVOID)Address, &Data, sizeof(float), &dSize))
{
system("color C");
system("cls");
printf("Error writing process memory!");
getch();
}
VirtualProtectEx(hProc, (void*)Address, 4, protect, &protect);
}

https://forum.cheatengine.org/viewtopic.php?t=548946&sid=b4cca385f4016c0f477f34993553fa8a

 

[thegood]

mh, cant help you now, maybe you can send some screenshots, code or memory regions ?!

 

[NubTIK]

The question is, wether the program you want to hack, accept float values !?

Ok, float values are not given in the memory, there are just values, who "describe" the float value!
The function "WriteProcessMemory" only accepts LPCVOID, i thik this should be a 4 byte value !?
So we have to convert the float number to a 4 byte value:

#include <iostream>
#include <Windows.h>

using namespace std;

int main()
{
float fNumber = 3.141; //type in your number you want to "hack" here
float *pointer = &fNumber; //pointer to this number
int *intpointer = (int *) pointer; //cast to int-pointer

cout<<"Value as float: "<<*pointer<<" Value as 4-byte-integer: "<<*intpointer<<endl;
//you can get now the memory of the float-value as int-value

system("pause");

return 0;
}

the value as 4-byte-integer you can type in into the WriteProcessMemory-function
I hope this will work.

thegood

Good post, I just wanna point out that LPCVOID Is NOT The only thing it accepts... what about PBYTE* ?