C ++將stdcall函數名稱作為參數傳遞

Question

我無法將stdcall函數名稱“ TestFunction”作為參數傳遞給ExecuteLocalThread並在beginthreadex中使用

unsigned __stdcall TestFunction(void* timerPointer)
{
    unsigned result =0;
    printf("thread is running\n");
    return result;
}

void ExecuteLocalThread(unsigned int (_stdcall *_StartAddress)(void *))
{
    HANDLE   heartBeatThread;
    unsigned int hbThreadID;
    heartBeatThread = (HANDLE)_beginthreadex(NULL, 0 , unsigned int (_stdcall *_StartAddress)(void *)/*&TestFunction*/, (void*)this, CREATE_SUSPENDED, &hbThreadID);
    ResumeThread( heartBeatThread );
}

Answer 1

嘗試：

heartBeatThread = (HANDLE)_beginthreadex(NULL, 0 , _StartAddress/*&TestFunction*/, (void*)this, CREATE_SUSPENDED, &hbThreadID);

Answer 2

我強烈建議為函數指針創建一個typedef，並在其他地方使用它：

typedef unsigned int _stdcall (*Pfn)(void*); // typedefs to "Pfn"

void ExecuteLocalThread(Pfn _StartAddress)
{
    HANDLE   heartBeatThread;
    unsigned int hbThreadID;
    heartBeatThread = (HANDLE)_beginthreadex(NULL, 0, _StartAddress, (void*)this, CREATE_SUSPENDED, &hbThreadID);
    ResumeThread( heartBeatThread );
}

它更容易鍵入，更易於閱讀，更難弄亂;）連轉換也變得很容易：將somePtr為函數指針類型： (Pfn)somePtr