How to include a program in C++ startup?

Question

C++ / C#

I add the program to autoload code:

void AutoRun()
{
    char arr[MAX_PATH] = { };
    GetModuleFileName(NULL, (LPWSTR)arr, MAX_PATH);

    HKEY hKey;

    if (RegCreateKeyEx(HKEY_CURRENT_USER, L"Software\\Microsoft\\Windows\\CurrentVersion\\Run", 0, NULL, 0, KEY_ALL_ACCESS, NULL, &hKey, NULL) == ERROR_SUCCESS)
    {
        if (RegSetValueEx(hKey, L"My program", NULL, REG_SZ, (LPBYTE)arr, sizeof(arr)) == ERROR_SUCCESS)
        {
            RegCloseKey(hKey);
        }
        return;
    }
}

Everything is fine, the program is prescribed, but the problem is that the "Status" is disabled, how to make it so that it becomes "on"?

Answer 1

The last parameter in RegSetValueEx for REG_SZ must be the length of the string + 1 to the terminating null character (strlen(arr)+1) ( https://docs.microsoft.com/en-us/windows/win32/api... )
Do not use MAX_PATH is an ancient, obsolete option. Read until enlightened: https://docs.microsoft.com/en-us/windows/win32/fil...