Help with writeProcessMemory/openProcess

I am trying to transition from just using cheat engine for my hacks to also using c++, but I am having difficulty learning the writeProcessMemory command. I have read through the MSDN documentation on writeProcessMemory and openProcess but I can't seem to figure out what I am doing wrong.

Can't get it to work on the cheat engine tutorial even (step 2).
Seems when I run the code (without debugging) in visual studio, the HP address goes unchanged, even when I update it by hitting "Hit me"

Code:

#include <iostream>
#include <Windows.h>
using namespace std;

int main() {
	
	int number = 50;

	HWND hwnd = FindWindowA(NULL, "Step 2");  //"Step 2" is the window title
	DWORD procID;
	GetWindowThreadProcessId(hwnd, &procID);
	
	HANDLE handle = OpenProcess(PROCESS_ALL_ACCESS, FALSE, procID);
	WriteProcessMemory(handle, (LPVOID)0x3860710, &number, sizeof(number), NULL); //the second argument is the address of the hp value
}

step 2.PNG CEwindso.png

https://msdn.microsof*****m/en-us/lib...(v=vs.85).aspx
try changing permissions on restricted memory location.

Also use the GetLastError() to find the last error code.

edit:
OK the cheat engine is forced to run as admininstrator, I made very subtle modification but if you compile this and run as admin it will work, obviously change the memory location

Code:

#include <iostream>
#include <Windows.h>
using namespace std;

int main() {

    int number = 50;
    SetLastError(0);
    HWND hwnd = FindWindow(nullptr, "Step 2");  //"Step 2" is the window title
    DWORD procID;
    GetWindowThreadProcessId(hwnd, &procID);
    HANDLE handle = OpenProcess(PROCESS_VM_READ | PROCESS_VM_WRITE | PROCESS_VM_OPERATION, FALSE, procID);
    cout << GetLastError() << endl;
    SetLastError(0);
    if(!WriteProcessMemory(handle, (LPVOID)0x036D1AA8, &number, sizeof(number), nullptr)){
        cout << "write failed";
    } //the second argument is the address of the hp value
    cout << GetLastError();
    cin.get();
}

Help with writeProcessMemory/openProcess

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