Legacy Document

Inside Macintosh: Devices /

Chapter 6 - Power Manager / Power Manager Reference

Power Manager Dispatch Routines / Controlling the Sleep and Wakeup Timers

SetWakeupTimer

You can use the SetWakeupTimer function to set the time when the computer will wake up from sleep mode.

void SetWakeupTimer(WakeupTime *theTime);

theTime

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

DESCRIPTION

The SetWakeupTimer function sets the time when the computer will wake up from sleep mode and enables or disables the timer. On a PowerBook model that doesn't support the wakeup timer, SetWakeupTimer does nothing.

ASSEMBLY-LANGUAGE INFORMATION

The trap is _PowerMgrDispatch ($A09E). The selector value for SetWakeupTimer is 23 ($17) 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.