Undocumented functions of NTDLL

2OO1, 7 January


Gridstore - NonStop Storage

NtQueryEvent
NtQueryEvent

NTSYSAPI 
NTSTATUS
NTAPI

NtQueryEvent(


  IN HANDLE               EventHandle,
  IN EVENT_INFORMATION_CLASS EventInformationClass,
  OUT PVOID               EventInformation,
  IN ULONG                EventInformationLength,
  OUT PULONG              ReturnLength OPTIONAL );



  • EventHandle
    •     HANDLE to Event Object opened with EVENT_QUERY_STATE access.
  • EventInformationClass
    •     See EVENT_INFORMATION_CLASS for details.
  • EventInformation
    •     Caller's allocated buffer for result data.
  • EventInformationLength
    •     Length of EventInformation buffer, in bytes.
  • ReturnLength
    •     Returns required/used size of EventInformation buffer.


    Currently there're only one information class for use with Event Object. See EVENT_INFORMATION_CLASS for details.


    Documented by:
    Tomasz Nowak



    Requirements:
    Library: ntdll.lib


    See also:
    EVENT_BASIC_INFORMATION
    EVENT_INFORMATION_CLASS
    NtCreateEvent
    NtOpenEvent