WorldViz User Forum - Default Splashscreen Image Remains with Continuous Sampling (Must Finite Sample)

I'm currently obtaining continuous data from my USB DAQ. My splashscreen will not show the background I have prepared for it until all of my DAQ data has loaded (ie- I haven't figured out how to load my graphics if I use continuous sampling. If I have finite sampling, then the graphics will load after all samples have been taken).

How can I have continuous sampling with what I programmed into the viz.go window? I put viz.go() at the beginning of my program, so obviously there is something else that needs to occur before I can actually start viewing and interacting with the window.

I will attach relevant code below.

Thanks

Code:

import ctypes

import numpy

import viztask

nidaq = ctypes.windll.nicaiu # load the DLL

viz.go()



# constant and variables left out for simplicity



def CHK(err):

    if err < 0:

        buf_size = 100

        buf = ctypes.create_string_buffer('\000' * buf_size)

        nidaq.DAQmxGetErrorString(err,ctypes.byref(buf),buf_size)

        raise RuntimeError('nidaq call failed with error %d: %s'%(err,repr(buf.value)))



#Main Program

CHK(nidaq.DAQmxCreateTask("",ctypes.byref(taskHandle)))

CHK(nidaq.DAQmxCreateAIVoltageChan(taskHandle,"Dev2/ai0:1","",DAQmx_Val_Cfg_Default,float64(-13.0),float64(13.0),DAQmx_Val_Volts,None))

CHK(nidaq.DAQmxCfgSampClkTiming(taskHandle,"",float64(1),DAQmx_Val_Rising,DAQmx_Val_ContSamps,uInt64(max_num_samples))); 

CHK(nidaq.DAQmxStartTask(taskHandle))



def obtain_value():

    CHK(nidaq.DAQmxReadAnalogF64(taskHandle,1,float64(-1),DAQmx_Val_GroupByChannel,data.ctypes.data,max_num_samples,ctypes.byref(read),None)) 

    print '     after read'

    print data



i = 0

while i < 10:

    i += 1         # IF I COMMENT THIS LINE OUT, MY SPLASHSCREEN WILL NOT LOAD :(

    obtain_value()



if taskHandle.value != 0:

    CHK(nidaq.DAQmxStopTask(taskHandle))

    CHK(nidaq.DAQmxClearTask(taskHandle))