Method GetDefaultLibraryPath

ReviveOverlay/revivemanifestcontroller.cpp:126–182

}

bool CReviveManifestController::GetDefaultLibraryPath(wchar_t* path, uint32_t length)
{
	LONG error = ERROR_SUCCESS;

	// Open the libraries key
	WCHAR keyPath[MAX_PATH] = { L"Software\\Oculus VR, LLC\\Oculus\\Libraries\\" };
	HKEY oculusKey;
	error = RegOpenKeyExW(HKEY_CURRENT_USER, keyPath, 0, KEY_READ, &oculusKey);
	if (error != ERROR_SUCCESS)
	{
		qDebug("Unable to open Libraries key.");
		return false;
	}

	// Get the default library
	WCHAR guid[40] = { L'\0' };
	DWORD guidSize = sizeof(guid);
	error = RegQueryValueExW(oculusKey, L"DefaultLibrary", NULL, NULL, (PBYTE)guid, &guidSize);
	RegCloseKey(oculusKey);
	if (error != ERROR_SUCCESS)
	{
		qDebug("Unable to read DefaultLibrary guid.");
		return false;
	}

	// Open the default library key
	wcsncat(keyPath, guid, MAX_PATH);
	error = RegOpenKeyExW(HKEY_CURRENT_USER, keyPath, 0, KEY_READ, &oculusKey);
	if (error != ERROR_SUCCESS)
	{
		qDebug("Unable to open Library path key.");
		return false;
	}

	// Get the volume path to this library
	DWORD pathSize;
	error = RegQueryValueExW(oculusKey, L"Path", NULL, NULL, NULL, &pathSize);
	PWCHAR volumePath = (PWCHAR)malloc(pathSize);
	error = RegQueryValueExW(oculusKey, L"Path", NULL, NULL, (PBYTE)volumePath, &pathSize);
	RegCloseKey(oculusKey);
	if (error != ERROR_SUCCESS)
	{
		free(volumePath);
		qDebug("Unable to read Library path.");
		return false;
	}

	// Resolve the volume path to a mount point
	DWORD total;
	WCHAR volume[50] = { L'\0' };
	wcsncpy(volume, volumePath, 49);
	GetVolumePathNamesForVolumeNameW(volume, path, length, &total);
	wcsncat(path, volumePath + 49, MAX_PATH);
	free(volumePath);

	return true;
}