KiUserApcDispatcher

2OO1, 10 December

KiUserApcDispatcher

NTSYSAPI 
VOID
NTAPI


KiUserApcDispatcher(



  IN PVOID                Unused1,
  IN PVOID                Unused2,
  IN PVOID                Unused3,
  IN PVOID                ContextStart,
  IN PVOID                ContextBody );

Unused1 Unused parameters. Sometimes one of them have ntdll.dll module address.

Unused2 See Unused1.

Unused3 See Unused1.

ContextStart Begining of ContextStart CONTEXT structure is stored.

ContextBody Four bytes from CONTEXT structure at offset 0x04.

KiUserApcDispatcher isn't standard ntdll function. It's used by kernel to process APC queue for calling thread. Five paraters I defined only for compatibility with ntdll.lib export (_KiUserApcDispatcher@20). Function first execute code placed after call, and next calls NtContinue with CONTEXT specified at 4 parameter position (Warning: Not pointer to CONTEXT, but CONTEXT body must be stored on stack).

Documented by:: Tomasz Nowak

Requirements:

Library: ntdll.lib

Undocumented functions of NTDLL