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POKilling window application from Task Manager sends WM_QUIT?
 

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    1. USvoid
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    1. COWindows message pumps exit differently depending on how they're coded, but the most common main-thread pump uses `GetMessage()` with *no window handle*. When your application window receives a WM_CLOSE it invokes `DestroyWindow()`, which eventually sends a WM_DESTROY for said-same window. That, in turn, usually posts a *application level* WM_QUIT by invoking `PostQuitMessage(retval)`. This is what eventually posts WM_QUIT to the main message loop, which causes `GetMessage()` to return FALSE, and thereby exists the `while (GetMessage(...)` loop and your application afterward.
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      1. USWhozCraig
    2. COWhen you kill the process from Task Manager, it is first sent a polite request to quit (WM_QUIT). If it doesn't respond in a timely manner, it's just forcibly terminated. I used an example somewhere else with the example of having a large sinkhole open right below your feet; you're simply gone, and you don't get a chance to call home and say goodbye to your spouse or significant other first. Forceful termination doesn't allow tidy cleanup; it's a **forceful termination**, and you've missed your chance.
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      1. USKen White
    3. CO@KenWhite: `WM_QUIT` isn't a request to quit, it's a message that an app posts to itself to break out of the message loop. I'd expect Task Manager to simply send `WM_CLOSE` in the first instance.
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      1. USJonathan Potter
 

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