为什么CreateWaitableTimer（）没有反应？？？

[linao]

代码如下：
LARGE_INTEGER li;
HANDLE hTimerCheck;

li.QuadPart = -(5 * 10000000);

CreateWaitableTimer(NULL, FALSE, "timercheck");
hTimerCheck = OpenWaitableTimer(TIMER_MODIFY_STATE, FALSE, "timercheck");
if (SetWaitableTimer( hTimerCheck, &li, 10*1000, (PTIMERAPCROUTINE)WaitTimerCheckCaption, NULL, TRUE) == 0)
MessageBox(NULL, "error", "", 0);


执行以上代码，WaitTimerCheckCaption（）函数一点反应都没有，这是怎么回事？？？

[linao]

我实了还是不行啊

我想会不会和windows的信息循环有关系？？？

[101monster]

呵呵，UP！

[linao]

是消息循环：）

[xstring]

改成以下这样就可以了
LARGE_INTEGER li;
HANDLE hTimerCheck;

li.QuadPart = -(5 * 10000000);

CreateWaitableTimer (NULL, FALSE, "timercheck");
hTimerCheck = OpenWaitableTimer (TIMER_MODIFY_STATE,
FALSE, "timercheck");
if (SetWaitableTimer (hTimerCheck, &li, 10*1000, (PTIMERAPCROUTINE)WaitTimerCheckCaption, NULL, TRUE) == 0)
MessageBox(NULL, "error", "", 0);
else
SleepEx (INFINITE, TRUE);

[ahao]

要有反应,你的线程必须在alertable状态,也就是必须调
WaitForSingleObjectEx, WaitForMultipleObjectsEx, MsgWaitForMultipleObjectsEx, SignalObjectAndWait, SleepEx之一

[enoloo]

const __int64 c_SECOND = 10000000; // see Q188768
__int64 qwDueTime = -10 * c_SECOND;

// push the relative time into the proper format
LARGE_INTEGER liDueTime;
liDueTime.LowPart = (DWORD)(qwDueTime & 0xFFFFFFFF);
liDueTime.HighPart = (DWORD)(qwDueTime >> 32);