进程内注册控件

HRESULT DllUnregisterServer(LPCTSTR lpszDLLPath) { HINSTANCE hDLL = LoadLibrary(lpszDLLPath) ; if (hDLL) {    typedef HRESULT (__stdcall *PFN_DllUnregisterServer)(void) ;    HRESULT hr ;    PFN_DllUnregisterServer pfn_DllUnregisterServer = (PFN_DllUnregisterServer) GetProcAddress( hDLL, "DllUnregisterServer" ) ;    if (pfn_DllUnregisterServer)    {     hr = pfn_DllUnregisterServer() ;    }    FreeLibrary(hDLL) ;    return hr ; } return E_FAIL ; } HRESULT DllRegisterServer(LPCTSTR lpszDLLPath) { HINSTANCE hDLL = LoadLibrary(lpszDLLPath) ; if (hDLL) {    typedef HRESULT (__stdcall *PFN_DllRegisterServer)(void) ;    HRESULT hr ;    PFN_DllRegisterServer pfn_DllRegisterServer = (PFN_DllRegisterServer) GetProcAddress( hDLL, "DllRegisterServer" ) ;    if (pfn_DllRegisterServer)    {     hr = pfn_DllRegisterServer() ;    }    FreeLibrary(hDLL) ;    return hr ; } return E_FAIL ; }       hr=DllRegisterServer(str);     if(SUCCEEDED(hr))     {      TRACE("RUN/n");     }else     {      TRACE("FALSE %s/n", str);     }