Brain Imaging & Analysis Center

PDFLG is an integer parameter that controls global real-time paradigm execution options. Showplay uses PDFLG as the MODE argument to the REALTIME command using the command line:

realtime rtime.tmp runlog pdflg

RTIME.TMP is the real-time program file generated by Showplay based on your task options, and RUNLOG is the real-time log table that will be used to record the sequence and timing of events that occur during execution of the program.

PDFLG is a bit flag, where the binary bits have the following meanings (combine by addition):

      0 - execute RT program normally (default).
      1 - check for run-time errors
      2 - turn off taskbar explicitly during realtime 
          (Note: sometimes taskbar acts odd when it comes back.)
      4 - execute RT program normally, except that after each operation has completed 
          the amount of time the operation took is stored in the EXEC_FLAG field of the RUNLOG.  
          (Note: elapsed time only includes the time it takes from the scheduled execution time 
           until the operation completes and does not include any time spent setting up the 
           operation before its scheduled start time.
     10o - execute RT program and record elapsed times, but ignoring the scheduled execution times. 
           Each operation begins as soon as the previous operation is completed.  In this case 
           the elapsed time recorded is the total execution time required for the operation.
     20o - single step through realtime program
     40o - log every real-time event (normally on flagged events)
    100o - test for timing conflicts
    200o - Showplay test flag -- don't complain if a stimulus image file is not found 
   2000o - Use DirectDraw for display

See Also:
REALTIME

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