**CIGAL Reference Manual, Chapter 6 (RealTime): r_dread**
===== r_dread -- Read the digital input channel =====
**usage: r_dread  opflg eflag ltime Databuf [TimeBuf]**

R_DREAD is a REALTIME operator. It reads the status of the digital input
channels and stores the result in a short integer, DATABUF.

TIMEBUF can be used to specify a long array to store the time that the wait
terminated.  If the DATABUF is an autoincremented array (e.g. buf++) then
TIMEBUF will also be incremented after storing the timestamp.

**See Also:**\\
[[jvs:cigal|CIGAL Home]], 
[[jvs:cigal:manual|CIGAL Manual]], 
[[jvs:cigal:manual:chapter6|RealTime List]], 
[[jvs:cigal:manual:help|Manual Help]]