simple question

[Willem B]

Excute a class as a thread Class name: CTest i was thinking of something like this: AfxBeginThread(CTest, THREAD_PRIORITY_NORMAL); but it gives the error: error C2275: 'CTest': illegal use of this type as an expression if i can't excute a class what does this mean: CWinThread* AfxBeginThread( CRuntimeClass* pThreadClass, int nPriority = THREAD_PRIORITY_NORMAL, UINT nStackSize = 0, DWORD dwCreateFlags = 0, LPSECURITY_ATTRIBUTES lpSecurityAttrs = NULL ); (source: MSDN) []D [] []D []

[HENDRIK R]

There's two ways of using AfxBeginThread: Either you call if for a thread procedure, declared as

UINT MyThreadProc(LPVOID lParam)
{
...
}

or you use it by providing a class derived from CWinThread as first parameter. While the former is used as a worker thread, that means doing some stuff, the latter is usually used for gui tasks. You should have a look at MSDN to get more information about that.

[MAAK]

The class must be derived from CWinThread and must override the method BOOL CreateThread(DWORD, UINT, LPSECURITY_ATTRIBUTES); and when passing the runtime class of class use the macro RUNTIME_CLASS(classname) much better, unless you really need it, use the AfxBeginThread() to execute a function and pass the class object's pointer as the function's parameter. if you have VC++.Net then read these links in the msdn ms-help://MS.VSCC/MS.MSDNVS/vccore/html/_core_Multithreading.3a_.Creating_Worker_Threads.htm ms-help://MS.VSCC/MS.MSDNVS/vccore/html/_core_Multithreading.3a_.Creating_User.2d.Interface_Threads.htm