Help with threads.

[FISH786]

I have been able to get this 3 to work. Window1 and Window2 have 2 different handles to 2 different windows.

theApp.m_pThreads [0]=AfxBeginThread(Thread,Window1);
theApp.m_pThreads [1]=AfxBeginThread(Thread,Window2);

theApp.m_pThreads[0]->ResumeThread();
theApp.m_pThreads[1]->ResumeThread();

theApp.m_pThreads[0]->SuspendThread();
theApp.m_pThreads[1]->SuspendThread();

My problem is I don't want to create a thread for every window, How do I reuse the threads and change Window1 to Window3. I have tried searching for it, being new I must have missed some articles. Would someone help me with this. Thanks a million.

[Chris Losinger]

perhaps a Thread Pool[^] would help ?

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[FISH786]

Thank you, I will read on that. I guess i should find Thread pools on code project for samples and better explanation on it. thanks a million.

[Chris Losinger]

if you can use Boost, there's a threadpool[^] extension which might help, too.

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[Ozer Karaagac]

Simply. You can consider to pass a pointer to an object instead of Window1. The object that wraps window handle value, should be managable by your main thread.

class AClassName
{
public:
    HWND hWindow;
};

AClassName* pACN new AClassName;
pACN->hWindow = Window1;

theApp.m_pThreads [0] = AfxBeginThread(Thread, pACN);

Then you can refer to pACN->hWindow in your thread function appropriately. You may have to employ some synchronization technics, too.

[_Superman_]

You can use PostThreadMessage to pass in the window handle to the thread to switch from one window to another. And never pass the window object from one thread to another. Always pass the window handle and attach it to a new window object using CWnd::FromHandle inside the thread. A window handle and its object is managed by MFC using a map which is valid only for the current thread.

«_Superman_» I love work. It gives me something to do between weekends.

[FISH786]

It seems that will be my best choice for now. I can't find any articles or demo's on a thread pool using vc++. All I have seen so far are in C#.