使用Win32线程的C++/CLI REF类

托管类使用“句柄”而不是引用传递。不能像托管指针那样处理托管类的句柄。您要做的是创建一个本机帮助程序类,该类包含托管类的句柄。然后将指向本机助手的指针传递到线程启动函数中。这样地:

#include <msclr/auto_gcroot.h>
using msclr::auto_gcroot;

ref class MmePlayer;

class MmeHelper 
{
     auto_gcroot<MmePlayer^> myPlayer;
};

ref class MmePlayer
{
    int StartPlayback()
    {
        myHelper = new MmeHelper();
        myHelper->myPlayer = this;
        hPlayThread = CreateThread(NULL, 0, PlayThread, myHelper, 0, &PlayThreadId);
    }

    MmeHelper * myHelper;
};

static DWORD WINAPI PlayThread(LPVOID pThreadParam)
{
    // Get a pointer to the object that started the thread
    MmeHelper* helper = pThreadParam;
}