RtlDispatchAPC - NtDoc

#ifndef _NTPSAPI_H
//
// Threads
//
#if (PHNT_MODE != PHNT_MODE_KERNEL)

/**
 * Dispatches the Asynchronous Procedure Call (APC) from the NtQueueApc* functions to the specified routine.
 * 
 * @param ApcRoutine A pointer to the APC routine to be executed.
 * @param Parameter Optional. A pointer to a parameter to be passed to the APC routine.
 * @param ActxContext Optional. A handle to an activation context.
 */
NTSYSAPI
VOID
NTAPI
RtlDispatchAPC(
    _In_ PAPCFUNC ApcRoutine,
    _In_opt_ PVOID Parameter,
    _In_opt_ HANDLE ActxContext
    );

#endif
#endif
View code on GitHub