test.h
class test :
{
public:
    test(void);
    ~test(void);


public:
    //你的其他函式
    ...
    ....
protected:

    //你的其他函式
    ...
    ...
    static void CALLBACK TimeProcFu(HWND hwnd,UINT message,UINT idTime,DWORD dwTime);

    void aa();
private:
    static test* m_staticSelf; 
};

test.cpp

test* test:
 
:m_staticSelf; 

test::test(void)
{
    //建構函式
    m_staticSelf = this;

}

test::~test(void)
{

}

void CALLBACK test::TimeProcFu( HWND hwnd,UINT message,UINT idTime,DWORD dwTime )
{
    m_staticSelf->aa();
}

void test::aa()
{
    //你的執行程式碼
}