Legacy Document

Inside Macintosh: Devices /

Chapter 6 - Power Manager / Power Manager Reference

Power Manager Dispatch Routines / Controlling the Sleep and Wakeup Timers

GetWakeupTimer

You can use the GetWakeupTimer function to find out when the computer will wake up from sleep mode.

void GetWakeupTimer(WakeupTime *theTime);

theTime

A pointer to a WakeupTime structure, which specifies whether the timer is enabled or disabled and the time at which the wakeup timer is set to wake the computer.

DESCRIPTION

The GetWakeupTimer function returns the time when the computer will wake up from sleep mode.

If the PowerBook model doesn't support the wakeup timer, GetWakeupTimer returns a value of 0.

ASSEMBLY-LANGUAGE INFORMATION

The trap is _PowerMgrDispatch ($A09E). The selector value for GetWakeupTimer is 22 ($16) in the low word of register D0. The pointer to WakeupTime is passed in register A0.

SEE ALSO

The WakeupTime structure is described in "Wakeup Time Structure," on page 6-27.