multithreading - windows universal app passing ref class object to a native c++ thread -


i'm trying use c++ native threads in windows universal app(windows 10) 

classname^obj=ref new classname(); std::thread t1(function,obj);//or  thread t1(function,std::ref(obj));// t1.detach(); -------------------------------- function(classname^x){ //do on x }

an exception occurs , error : x information not available,

what correct form passing ref obj thread?


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