Inside Macintosh: Devices /

Chapter 6 - Power Manager / Power Manager Reference

Power Manager Routines / Controlling and Reading the Wakeup Timer

GetWUTime

You can use the GetWUTime function to read the current setting of the wakeup timer.

FUNCTION GetWUTime (VAR WUTime: LongInt; VAR WUFlag: Byte): OSErr;

WUTime

On exit, the current setting of the wakeup timer, specified as the number of seconds since midnight, January 1, 1904.

WUFlag

On exit, a bit field encoding the state of the wakeup timer.

DESCRIPTION

The GetWUTime function returns the current setting of the wakeup timer and indicates whether the wakeup timer is enabled. The value returned in the WUTime parameter is the current setting of the wakeup timer, specified as the number of seconds since midnight, January 1, 1904. If the low-order bit (bit 0) of the WUFlag parameter is set to 1, the wakeup timer is enabled. The other bits in the WUFlag parameter are reserved.

SPECIAL CONSIDERATIONS

The GetWUTime function returns an error on machines that do not support the wakeup timer.

RESULT CODES

noErr	0	No error
pmBusyErr	-13001	Wakeup timer is not available on this machine