Submitted by Anonymous on Wed, 05/24/2000 - 16:40. Developers
Is 0 an invalid XtIntervalId? I`m reviewing legacy code and find code that checks for 0, assuming it is not valid. I don`t see anything in the man pages to justify this, but if for example, returns an address, it would make sense.

Incidently, I also find other code that checks for < 0, but XtIntervalId is described as an unsigned long in man XtAppAddTimeOut().