确定一个应用程序是否没有响应

确定一个应用程序是否没有响应2008-01-05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.