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POThread Program in visual C++/CLI giving errors
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17592925
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2013-07-11T12:05:05.603
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2013-07-12T03:24:49.690
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2013-07-12T03:24:49.690
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<p>I am trying to follow the tutorial at <a href="http://www.drdobbs.com/cpp/ccli-threading-part-i/184402018" rel="nofollow">http://www.drdobbs.com/cpp/ccli-threading-part-i/184402018</a> to do thread programming in winform in visual c++. I opened a win32 console project and added an empty cpp file to it inside which i placed the code as follows:</p> <pre><code> using namespace System; using namespace System::Threading; public class ThreadX{ int loopStart; int loopEnd; int dispFrequency; public: ThreadX(int startValue, int endValue, int frequency) { loopStart = startValue; loopEnd = endValue; dispFrequency = frequency; } void ThreadEntryPoint() { String^ threadName = Thread::CurrentThread->Name; for (int i = loopStart; i <= loopEnd; ++i) { if ( i % dispFrequency == 0) { Console::WriteLine("{0} : i = {1,10}", threadName, i); } } Console::WriteLine("{0} thread terminating", threadName); } }; int main() { ThreadX o1 = gcnew ThreadX(0, 1000000,200000); Thread^ t1 = gcnew Thread(gcnew ThreadStart(o1, &ThreadX::ThreadEntryPoint)); t1->Name = "t1"; ThreadX o2 = gcnew ThreadX(-1000000, 0, 200000); Thread^ t2 = gcnew Thread(gcnew ThreadStart(o2, &ThreadX::ThreadEntryPoint)); t1->Name = "t2"; t1->Start(); t2->Start(); Console::WriteLine("Primary Thread Terminating"); } </code></pre> <p>However this gives me errors such as :</p> <ol> <li>error C2726: 'gcnew' may only be used to create an object with managed type </li> <li>error C2440: 'initializing' : cannot convert from 'ThreadX *' to 'ThreadX' No constructor could take the source type, or constructor overload resolution was ambiguous </li> <li>error C3364: 'System::Threading::ThreadStart' : invalid argument for delegate constructor; delegate target needs to be a pointer to a member function</li> </ol>
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<multithreading><visual-studio-2010><visual-c++><c++-cli>
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Thread Program in visual C++/CLI giving errors
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