I can't complete RegisterDeviceNotification function when i declare [import "pkcs11.h"]

i'm deverloping a product .... in a c++ code page I declare import "pkcs11.h" and i using   RegisterDeviceNotification  function to  registers the device or type of device for which a window will receive notifications . but it all way Fail .
#include <wincrypt.h>
#include <pkcs11.h>
#pragma comment (lib,"User32.lib")
......
.......
.......
//register the usb events for this window
      HDEVNOTIFY hDevNotify;
      DEV_BROADCAST_DEVICEINTERFACE DevDesc;
      DevDesc.dbcc_size = sizeof(DevDesc);
      DevDesc.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;
      DevDesc.dbcc_classguid = GUID_CLASS_USB_DEVICE;
      hDevNotify=RegisterDeviceNotification(this->m_hWnd, &DevDesc, DEVICE_NOTIFY_WINDOW_HANDLE);
      if( !hDevNotify )
      {
      //MessageBox("Can't detect register device notification"+ErrorToString(,"USB",MB_OK); */
                     MessageBox(errorMess,"USB",MB_OK);
      }

the problem is when i declare [import "pkcs11.h" ]  then hDevNotify allway  is NULL(fail) . when i don't declare [import "pkcs11.h" ]  then RegisterDeviceNotification is complete
now i want use pkcs11.h and RegisterDeviceNotification is complete . please show me how to do it?
thanks alot!