PVRFrameEnableControlWindow 函数的作用

Cocos2d-x
#1

cocos2dx 初始化时，加入这个函数有什么用呢？

int Application::run()
{
PVRFrameEnableControlWindow(false);
//…
}

static void PVRFrameEnableControlWindow(bool bEnable)
{
HKEY hKey = 0;

// Open PVRFrame control key, if not exist create it.
if(ERROR_SUCCESS != RegCreateKeyExW(HKEY_CURRENT_USER,
    L"Software\\Imagination Technologies\\PVRVFRame\\STARTUP\\",
    0,
    0,
    REG_OPTION_NON_VOLATILE,
    KEY_ALL_ACCESS,
    0,
    &hKey,
    NULL))
{
    return;
}

const WCHAR* wszValue = L"hide_gui";
const WCHAR* wszNewData = (bEnable) ? L"NO" : L"YES";
WCHAR wszOldData = {0};
DWORD   dwSize = sizeof(wszOldData);
LSTATUS status = RegQueryValueExW(hKey, wszValue, 0, NULL, (LPBYTE)wszOldData, &dwSize);
if (ERROR_FILE_NOT_FOUND == status              // the key not exist
    || (ERROR_SUCCESS == status                 // or the hide_gui value is exist
    && 0 != wcscmp(wszNewData, wszOldData)))    // but new data and old data not equal
{
    dwSize = sizeof(WCHAR) * (wcslen(wszNewData) + 1);
    RegSetValueEx(hKey, wszValue, 0, REG_SZ, (const BYTE *)wszNewData, dwSize);
}

RegCloseKey(hKey);

}

#2

跟注册表有关，具体也不知道做啥了。:2: