QueueUserAPC function

Adds a user-mode asynchronous procedure call (APC) object to the APC queue of the specified thread.

Syntax

C++

DWORD QueueUserAPC(
  PAPCFUNC  pfnAPC,
  HANDLE    hThread,
  ULONG_PTR dwData
);

Parameters

pfnAPC

A pointer to the application-supplied APC function to be called when the specified thread performs an alertable wait operation. For more information, see APCProc.

hThread

A handle to the thread. The handle must have the THREAD_SET_CONTEXT access right. For more information, see Synchronization Object Security and Access Rights.

dwData

A single value that is passed to the APC function pointed to by the pfnAPC parameter.

Return Value

If the function succeeds, the return value is nonzero.

关于PAPCFUNC要用stdcall，

关于SleepEx(dwMilliseconds: DWORD; bAlertable: BOOL)如果QueueUserAPC会导致其立即返回而不再等待。

PAPCFUNC callback function

• 2018/12/05
• 2 分钟阅读时长

An application-defined completion routine. Specify this address when calling the QueueUserAPC function. The PAPCFUNC type defines a pointer to this callback function. APCProc is a placeholder for the application-defined function name.

Syntax

C++

PAPCFUNC Papcfunc;

void _stdcall Papcfunc(
  ULONG_PTR Parameter
)
{...}

Parameters

Parameter

Return Value

This function does not return a value.