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include vmm.inc mov esi, Event ; event handle VMMcall Cancel_Global_Event |
The Cancel_Global_Event service cancels an event that was previously scheduled using the Schedule_Global_Event or Call_Global_Event service. A virtual device must not attempt to cancel an event if the callback procedure for the event has already been called.
Event
Specifies a handle identifying the event to cancel. This parameter can be zero to indicate that no event should be canceled.
This service has no return value.
The event callback procedure typically sets the event handle to zero so that subsequent calls by the virtual machine to this service do not cause errors.