USB Plug and Play Feature using CyAPI C++ Library

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C++

I'm using Cypress C++ Library to design a DLL for the Hardware Controller.
I would like to add USB plug and play feature in my DLL using Cypress library functions.

How can I add this feature in my DLL using Cypress C++ library functions?

My C++ Code sample:

void RefreshList(HWND AppHandle)
{ 
	int vid, pid;
	CyStreamdev = NULL;

	for(UCHAR i=0;i<cyusbdevice->DeviceCount();i++) 
	{ 
		CyUSBDevice->Open(i);

		vid = CyUSBDevice->VendorID;
		pid = CyUSBDevice->ProductID;
		if(vid == 0x232D && pid == 0x1151)
		{ 
			CyStreamdev = new CCyUSBDevice(AppHandle, CYUSBDRV_GUID,true);
		}
	} 
}

int GetDevice(HWND AppHandle)
{ 
	int ErrorCode;
	CyUSBDevice = new CCyUSBDevice(AppHandle,CYUSBDRV_GUID,true);
	AltInterface = 0; 
	if (CyUSBDevice->DeviceCount())
	{ 
		ErrorCode = CD940_SUCCESS;
	} 
	else 
	{ 
		ErrorCode = CD940_CARD_NOT_DETECTED;
	} 
	RefreshList(AppHandle);
	return ErrorCode;
}



bool FindCard(CCyUSBDevice *USBDevice, USHORT VID, USHORT PID)
{
	int numDevices = USBDevice->DeviceCount();
	UCHAR deviceNum = 0;

	CD940Found = false;
	do   
	{
		USBDevice->Open(deviceNum);   // Open automatically  calls Close(  ) if nece
		if((USBDevice->VendorID == VID) && (USBDevice->ProductID == PID))
			CD940Found = true;
		deviceNum++;            
	} while ((deviceNum < numDevices ) && !CD940Found);

	return(CD940Found);
};

int InitialiseDLL1(HWND AppHandle)
{
	CD940USBRegInterface = NULL;
	CD940FEB = NULL;

	CyUSBDevice = NULL;
	CyUSBDevice = new CCyUSBDevice(AppHandle,CYUSBDRV_GUID,true);

	if (FindCard(CyUSBDevice, CD940VID, CD940DID) && CyUSBDevice->IsOpen())	//Look for CD940
	{
		CD940USBRegInterface = new CyUSBRegisters(CyUSBDevice);	// Create USB Register handling object
		CD940FEB = new CD940FrontEndBoard(CD940USBRegInterface);
	}

	if((CD940FEB != NULL) && Found() && (CyUSBDevice != NULL))
	{
		ErrorCode = CD940_SUCCESS;
	}
	else
	{
		MessageBoxA(NULL, "CD940 Not Found, Please Contact Edinburgh Instruments!!!", "CD940 Error", MB_OK | MB_ICONERROR);
		ErrorCode = CD940_CARD_NOT_DETECTED;
	}

	return ErrorCode;
};
LRESULT CALLBACK WndProc(HWND AppHandle, UINT msg, WPARAM wParam, LPARAM lParam)
{
	switch(wParam)
	{
	case DBT_DEVNODES_CHANGED:
		bPnP_DevNodeChange = true;
		bPnP_Removal = false;
		break;

	case DBT_DEVICEARRIVAL:
		bPnP_DevNodeChange = true;
		bPnP_Removal = false;
		break;

	case DBT_DEVICEREMOVECOMPLETE:
		bPnP_Removal = true;
		break;

	default:
		/*
		Process other WM_DEVICECHANGE notifications for other
		devices or reasons.
		*/
		return DefWindowProc(AppHandle, msg, wParam, lParam );
	}
	return 0;
}
int _stdcall InitialiseDLL(HWND AppHandle)
{
	if (bPnP_DevNodeChange && bPnP_Removal) 
	{ 
		bPnP_Removal = false;
		bPnP_DevNodeChange = false;
		GetDevice(AppHandle); 
	} 
	// If DBT_DEVICEARRIVAL followed by DBT_DEVNODES_CHANGED 
	if (bPnP_DevNodeChange && bPnP_Arrival) 
	{ 
		bPnP_Arrival = false;
		bPnP_DevNodeChange = false;
		GetDevice(AppHandle); 
	} 	 
	InitialiseDLL1(AppHandle);
	return ErrorCode;
}

Thanks!