Write/Read Protected memory c++ - c++

Question

I am trying to use VirtualProtectEx() to change the memory address protection from PAGE_NOACCESS to PAGE_READ_WRITE, but it's not working.
Here is the code:
#define WIN64_LEAN_AND_MEAN
#include <iostream>
#include <Windows.h>
#include <string>
#include <stdint.h>
#include <vector>
using namespace std;
char a[16] = {'c','a','m','o','_','0','2','a'};
int b = 33555192;
MEMORY_BASIC_INFORMATION mbi;
int main() {
if (HWND hWnd = FindWindowA("IW8",0)) {
DWORD oldprotect;
DWORD pID = 0;
GetWindowThreadProcessId(hWnd, &pID);
HANDLE pHandle = OpenProcess(PROCESS_ALL_ACCESS, false, pID);
uint64_t address = 0x7ff6f1ba0d07;
VirtualQueryEx(pHandle, (LPCVOID)address, &mbi, sizeof(mbi));
if (VirtualProtectEx(pHandle, (LPVOID)address, 74, PAGE_EXECUTE_READWRITE, &oldprotect )) cout << "Changed memory protection !";
else cout << "Protection changer failed !";
cout << "\n" << "HWND : " << hWnd << "\n" << "PID : " << pID << "\n" << "PHandle : " << pHandle << "\n";
if (ReadProcessMemory(pHandle, (LPVOID)address, &b, sizeof(b), nullptr)) cout << "Found : " << b;
else (cout << "Invalid address");
cout << "\n\nMbi : " << mbi.Protect;
CloseHandle(pHandle);
}
else cout << "Process not found !";
int abc;
cin >> abc;
}

Answer 1

Please note that PAGE_NO_ACCESS can also mean that The page is not allocated which means that VirtualProtectEx will fail no matter what. You can try to use VirtualAllocEx to try to Allocate some memory at the location 0x7ff6f1ba0d07 first preferably with MEM_COMMIT | MEM_RESERVE and PAGE_EXECUTE_READWRITE before trying using VirtualProtectEx
https://learn.microsoft.com/en-us/windows/win32/api/memoryapi/nf-memoryapi-virtualallocex