class myClass
{
	static DWORD WINAPI ThreadCreate(LPVOID lParam);
	DWORD ThreadStart(LPVOID);

	void JakasFunkcja();
}

struct myArgs
{
	MyClass* myclass;
	int a, b;
};

// -----

DWORD WINAPI myClass::ThreadCreate(LPVOID lParam)
{
	myClass* _This = static_cast<myArgs*>(lParam)->myclass;
	return _This->ThreadStart(lParam);
}

DWORD myClass::ThreadStart(LPVOID lParam)
{
	// kod do 3wykonania w watku
	int start = static_cast<myArgs*>(lParam)->a;
	int end = static_cast<myArgs*>(lParam)->b;
}

// tu uruchamiam watek
void myClass::JakasFunkcja()
{
	myArgs arg {this, 10,20};

	DWORD ThreadID;
	HANDLE t1 = CreateThread(NULL, 0, ThreadCreate, &arg, 0, &ThreadID);
}