How to encapsulate winapi with same name?

Question

I try to encapsulate winapi. How to make winapi not collision with own member class?

class SWnd
{
  public:
    HWND m_hWnd;

    BOOL UpdateWindow()
    {
      if(UpdateWindow(m_hWnd)){
        return TRUE;
      else{
        return FALSE;
      };
    };
};