Device* getDevice()
{
return g_Device.IsValid() ? &g_Device : NULL;
}
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);
// create it
NodeInfoList::Iterator it = list.Begin();
for (i = 1; i < chosen; ++i)
{
it++;
}
NodeInfo deviceNode = *it;
nRetVal = g_Context.CreateProductionTree(deviceNode, g_Device);
XN_IS_STATUS_OK(nRetVal);
// now run the rest of the XML
nRetVal = g_Context.RunXmlScriptFromFile(csXmlFile, g_scriptNode, &errors);
XN_IS_STATUS_OK(nRetVal);
openCommon();
return (XN_STATUS_OK);
}