IntControl (69, p1, p2, 0, 0)
Suspends machine by shutting power down.
p1 Meaning (NT+)
0 hibernate mode
1 suspend mode
p2 Meaning
0 Don't force apps to suspend. The function broadcasts a PBT_APMQUERYSUSPEND event to each application to request permission to suspend operation.
1 Force apps to suspend. The function broadcasts a PBT_APMSUSPEND event to each application and driver, then immediately suspends operation
This IntControl puts the system into standby mode, if supported by the hardware and device drivers.
Note: This function is not supported when run as a service.