NI DAQmx base and openGL

[pete_bennett]

I'm trying to write a program that both reads a voltage and then displays this with openGL. However I have the problem that I can't get both to run at the same time.

Is it possible to set up a task using:
DAQmxErrChk (DAQmxBaseCreateTask("",&taskHandle));

Which can then be read from anywhere else in the program (maybe in the openGL loop) with:
DAQmxErrChk (DAQmxBaseReadAnalogF64(taskHandle,-1,timeout,DAQmx_Val_GroupByScanNumber,data,bufferSize,&pointsRead,NULL));

Or can the initialisation and reading only be performed in the same loop?

Any help would be much appreciated,

Pete

[WM_John_Weeks]

"anywhere else" covers a lot of territory. DAQmx Base cannot be used from multiple threads. As long as the calls are all in the same thread you should be OK.