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include vmm.inc
 
mov     ebx, VM        ; VM handle
mov     esi, Event     ; event handle
VMMcall Cancel_VM_Event
 
The Cancel_VM_Event service cancels an event that was previously scheduled
using the Schedule_VM_Event or Call_VM_Event service. A virtual device must
not attempt to cancel an event if the callback procedure for the event has
already been called.
 
Parameter  Description
────────────────────────────────────────────────────────────────────────────
 
VM         Specifies a handle identifying the virtual machine for which the
           event is to be canceled.
 
Event      Specifies a handle identifying the event to cancel. This
           parameter can be zero to indicate that no event should be
           canceled.
 
Return Value
 
This service has no return value.
 
Comments
 
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.
 
Do not use this service to cancel events scheduled using the
Call_Priority_VM_Event service. You must cancel priority events using the
Cancel_Priority_VM_Event service.
 
Uses
 
Flags
 
See Also
 
Call_VM_Event, Schedule_VM_Event
 
 
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