C++全局钩子里添加了通过控件句柄获取控件标题的代码，在获取时程序死机

LRESULT CALLBACK ShellHookProc(int nCode,WPARAM wParam,LPARAM lParam)
{
    if (nCode>=0)// Windows Created
    {
        const int MyMaxParentWinCount = 2;
        // 父窗口类名数组
        char *A_szClassName[MyMaxParentWinCount] =
        {
            "#32770","Button"
        };
        // 父窗口标题数组
        char *A_szWinName[MyMaxParentWinCount] =
        {
            "询问","是(&Y)"
        };

        // 首先求得顶级父窗口
        HWND hLastWins =FindWindow(A_szClassName[0], A_szWinName[0]);
        HWND hLastWinss = FindWindowEx(hLastWins, 0,
            "Static", NULL);
        char title[200];
        GetWindowText(hLastWinss, title, 200);//在这里死机
      
        char *t=title;
        char *pattern="小于成本";
        char *patter="小于最低销售价";
        char *isMatch1= strstr(t,pattern);
        char *isMatch2= strstr(t,patter);
        if(title!=NULL)
        {
            if (isMatch1!=NULL||isMatch2!=NULL)
            {
                /*MessageBox((HWND)isMatch1,NULL,NULL,NULL);*/

                // 逐次用FindWindowEx函数求出各级子窗口
                for(int i=1; i<MyMaxParentWinCount; i++)
                {
                    hLastWins = FindWindowEx(hLastWins, 0,
                        "Button", "是(&Y)");
                }      
                EnableWindow(hLastWins, false);
            }           
        }
    }

    return CallNextHookEx(g_hHookShell,nCode,wParam,lParam);
}

BOOL CQJHook1::SetHook()
{

    g_hHookShell = SetWindowsHookEx(WH_CALLWNDPROC, ShellHookProc,glhInstance,0);

    return g_hHookShell ? TRUE : FALSE;

}

BOOL CQJHook1::DestroyHook()
{
    if (g_hHookShell == NULL)
    {
        return FALSE;
    }

    UnhookWindowsHookEx(g_hHookShell);
    return TRUE;
}
CQJHook1::CQJHook1() //类构造函数
{
}

CQJHook1::~CQJHook1()
{
    DestroyHook();
}