确定一个应用程序是否没有响应

　　今天在MSN的核心讨论组上看到两篇文章.讨论的乃是应用程序是否没有响应.原文如下:

> How is it possible to determine a process is "not responding" like NT Task

> Manager do?

The heuristic works only for GUI processes, and consists of calling

SendMessageTimeOut() with SMTO_ABORTIFHUNG.

>There is any API call to do the job, or this status is simply a dedUCtion

>based on process counters, like that returned from call to GetProcessTimes

>API function?

Use SendMessageTimeout with a value of WM_NULL. That's all Task

Manager does to determine this AFAIK.

--

有理有理.当然,我这里还有一个UNDOCUMENTED函数,乃是其他的解决方案,NT和9X有个USER32.DLL的函数,IsHungAppWindow(NT)和IsHungThread(9X).使用起来简便无比.下面给出原型.

BOOL IsHungAppWindow (

HWND hWnd, // handle to main app's window

);

BOOL IsHungThread (

DWord dwThreadId, // The thread's identifier of the main app's window

);

有了原型,连解释都不需要,好得不的了.:)不过调用时需要GetProcAddress.库里没有该函数.