gclib 2.0.9
Communications API for Galil controllers and PLCs
 
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◆ G_GCLIB_NON_BLOCKING_READ_EMPTY

#define G_GCLIB_NON_BLOCKING_READ_EMPTY   -4

GMessage, GInterrupt, and GRecord can be called with a zero timeout. If there wasn't data waiting in memory, this error is returned.

Definition at line 25 of file gclib_errors.h.