NI-XNET nxBlink() what session type to use ?

Question

What session to pass to nxBlink() NI-XNET function ?
I tried to pass sessions obtained from:
- nxCreteSession(..., nxMode_FrameInStream, ...)
- nxCreteSession(..., nxMode_FrameOutStream, ...)
But I get error. The nxBlink() help only says use "The XNET Interface I/O name".
but that doesn' tell me what kind of session out of these to use:
nxMode_SignalInSinglePoint
0
nxMode_SignalInWaveform
1
nxMode_SignalInXY
2
nxMode_SignalOutSinglePoint
3
nxMode_SignalOutWaveform
4
nxMode_SignalOutXY
5
nxMode_FrameInStream
6
nxMode_FrameInQueued
7
nxMode_FrameInSinglePoint
8
nxMode_FrameOutStream
9
nxMode_FrameOutQueued
10
nxMode_FrameOutSinglePoint
11
nxMode_SignalConversionSinglePoint
12

Answer 1

I already found out that system type of session leads to interface/port type of session that can be used
to blink the particular port LED.
Thank you, Radek
 // Open system session.
        nxCheckErr(nxSystemOpen(&l_SystemRef));
 // Each Interface is represented by a u32 (4 bytes).
         l_NumberOfInterfaces = l_PropertySize /4;
         l_pInterfaceNames = (char**)malloc(sizeof(char*)*l_PropertySize);
         l_InterfaceBuffer = (u32 **)malloc(l_PropertySize);
         // This property returns the u32 value for each interface.  
         // You can use this value to get individual interface properties
         nxCheckErr(nxGetProperty (l_SystemRef, nxPropSys_IntfRefs, l_PropertySize, l_InterfaceBuffer));       
         // Get the individual interface names.
         for (i = 0; i < l_NumberOfInterfaces; i++)
            nxCheckErr(nxGetPropertySize((nxSessionRef_t)(l_In​terfaceBuffer[i]), nxPropIntf_Name, &l_PropertySize));
            l_pInterfaceNames[i] = (char*) malloc(l_PropertySize);
            nxCheckErr(nxGetProperty((nxSessionRef_t)l_Interfa​ceBuffer[i], nxPropIntf_Name, l_PropertySize, l_pInterfaceNames[i]));
            // Identify the port that match the resourceDescriptor.             
            if (0 == strcmp(resourceDescriptor, l_pInterfaceNames[i]))
                actualInterface = (nxSessionRef_t)l_InterfaceBuffer[i];
                nxBlink(actualInterface, 1); // Blink particular port for identification and
                Delay(1);                    // indicate that input stream was succesfully opened.           
                nxBlink(actualInterface, 0);