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my CoreAudio Clock won't stop!
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my CoreAudio Clock won't stop!


  • Subject: my CoreAudio Clock won't stop!
  • From: "Ferguson, Paul" <email@hidden>
  • Date: Wed, 17 Jan 2007 17:28:49 -0000
  • Thread-topic: my CoreAudio Clock won't stop!

Title: my CoreAudio Clock won't stop!

Can anyone shed some light on the following problem ?

A simple coreaudio Clock experiment in cocoa - interface code removed but minimal anyway..
.
.
CAClockRef pfClockRef;
CAClockTime pfTimestamp;
OSStatus osErr;
osErr = CAClockNew(0, &pfClockRef);     // sucessfully creates a new clock - appears to default to internal timebase = host
.
.
osErr = CAClockStart(pfClockRef);  //sucessfully starts the clock
.
.
osErr =  CAClockGetCurrentTime(pfClockRef, kCAClockTimeFormat_Seconds, &pfTimestamp);   //sucessfully prints running clock
printf("currentTime... returned error code %d, current time is%f\n", osErr, pfTimestamp.time.seconds);
.
.
osErr = CAClockStop(pfClockRef);    //not what I expected !! - instead of stopping the clock, the current time is stored as the new clockStartTime and the clock continues to run....
.
.

Many thanks in anticipation

Paul Fergy

 

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