Function openDeviceFromXmlWithChoice

Samples/NiViewer/Device.cpp:195–271

}

XnStatus openDeviceFromXmlWithChoice(const char* csXmlFile, EnumerationErrors& errors)
{
	XnStatus nRetVal = XN_STATUS_OK;

	xnLogInitFromXmlFile(csXmlFile);

	nRetVal = g_Context.Init();
	XN_IS_STATUS_OK(nRetVal);

	// find devices
	NodeInfoList list;
	nRetVal = g_Context.EnumerateProductionTrees(XN_NODE_TYPE_DEVICE, NULL, list, &errors);
	XN_IS_STATUS_OK(nRetVal);

	printf("The following devices were found:\n");
	int i = 1;
	for (NodeInfoList::Iterator it = list.Begin(); it != list.End(); ++it, ++i)
	{
		NodeInfo deviceNodeInfo = *it;

		Device deviceNode;
		deviceNodeInfo.GetInstance(deviceNode);
		XnBool bExists = deviceNode.IsValid();
		if (!bExists)
		{
			g_Context.CreateProductionTree(deviceNodeInfo, deviceNode);
			// this might fail.
		}

		if (deviceNode.IsValid() && deviceNode.IsCapabilitySupported(XN_CAPABILITY_DEVICE_IDENTIFICATION))
		{
			const XnUInt32 nStringBufferSize = 200;
			XnChar strDeviceName[nStringBufferSize];
			XnChar strSerialNumber[nStringBufferSize];

			XnUInt32 nLength = nStringBufferSize;
			deviceNode.GetIdentificationCap().GetDeviceName(strDeviceName, nLength);
			nLength = nStringBufferSize;
			deviceNode.GetIdentificationCap().GetSerialNumber(strSerialNumber, nLength);
			printf("[%d] %s (%s)\n", i, strDeviceName, strSerialNumber);
		}
		else
		{
			printf("[%d] %s\n", i, deviceNodeInfo.GetCreationInfo());
		}

		// release the device if we created it
		if (!bExists && deviceNode.IsValid())
		{
			deviceNode.Release();
		}
	}
	printf("\n");
	printf("Choose device to open (1): ");

	int chosen = 1;
	scanf("%d", &chosen);