SERIAL EX SIGAL

class CSerialEx : public CSerial
{
// Construction
public:
CSerialEx();
virtual ~CSerialEx();

// Operations
public:
// Open the serial communications for a particular COM port. You
// need to use the full devicename (i.e. "COM1") to open the port.
virtual LONG Open (LPCTSTR lpszDevice, DWORD dwInQueue = 0, DWORD dwOutQueue = 0, bool fStartListener = false);

// Close the serial port.
virtual LONG Close (void);

// Start the listener thread
virtual LONG StartListener (void);

// Stop the listener thread. Because the other thread might be
// busy processing data it might take a while, so you can specify
// a time-out.
virtual LONG StopListener (DWORD dwTimeout = INFINITE);

protected:
// Each opened COM-port uses its own specific thread, which will
// wait for one of the events to happen. When an event happens,
// then the client window is send a message informing about the
// event.
static DWORD WINAPI ThreadProc (LPVOID lpArg);
DWORD ThreadProc (void);

// Event handler
virtual void OnEvent (EEvent eEvent, EError eError) = 0;

protected:
// The WaitEvent method is being used by this class internally
// and shouldn't be used by client applications. Client
// application should monior the messages.
using CSerial::WaitEvent;

// The event-type is send in the WPARAM of the message and
// the GetEventType method returns the wrong data, so we'll
// hide this method for client applications to avoid problems.
using CSerial::GetEventType;
using CSerial::GetError;

protected:
// Internal attributes
bool m_fStopping;
HANDLE m_hThread;

#ifndef SERIAL_NO_OVERLAPPED
// Handle for overlapped operations in worker-thread
HANDLE m_hevtOverlappedWorkerThread;
#endif
};

#endif // __SERIAL_EX_H

SERIAL WIND

class CSerialWnd : public CSerialEx
{
// Construction
public:
CSerialWnd();
virtual ~CSerialWnd();

// Operations
public:
// Open the serial communications for a particular COM port. You
// need to use the full devicename (i.e. "COM1") to open the port.
virtual LONG Open (LPCTSTR lpszDevice, HWND hwndDest, UINT nComMsg=WM_NULL, LPARAM lParam=0, DWORD dwInQueue = 0, DWORD dwOutQueue = 0);

// Close the serial port.
virtual LONG Close (void);

protected:
// Event handler that is called when
virtual void OnEvent (EEvent eEvent, EError eError);

public:
// Default Serial notification message
static const UINT mg_nDefaultComMsg;

protected:
// Internal attributes
HWND m_hwndDest;
UINT m_nComMsg;
LONG m_lParam;
};

#endif // __SERIAL_WND_H

SERIAL MFC

#ifndef __SERIAL_EX_H
#define __SERIAL_EX_H


//////////////////////////////////////////////////////////////////////
// Include CSerial base class

#include "Serial.h"


//////////////////////////////////////////////////////////////////////
//
// CSerialEx - Win32 message-based wrapper for serial communications
//
// A lot of MS-Windows GUI based programs use a central message
// loop, so the application cannot block to wait for objects. This
// make serial communication difficult, because it isn't event
// driven using a message queue. This class makes the CSerial based
// classes suitable for use with such a messagequeue. Whenever
// an event occurs on the serial port, a user-defined message will
// be sent to a user-defined window. It can then use the standard
// message dispatching to handle the event.
//
// Pros:
// -----
// - Easy to use
// - Fully ANSI and Unicode aware
// - Integrates easily in GUI applications and is intuitive to
// use for GUI application programmers
//
// Cons:
// -----
// - Uses a thread for each COM-port, which has been opened.
// - More overhead, due to thread switching and message queues.
// - Requires a window, but that's probably why you're using
// this class.
//
// Copyright (C) 1999-2003 Ramon de Klein
// (Ramon.de.Klein@ict.nl)

class CSerialEx : public CSerial
{
// Construction
public:
CSerialEx();
virtual ~CSerialEx();

// Operations
public:
// Open the serial communications for a particular COM port. You
// need to use the full devicename (i.e. "COM1") to open the port.
virtual LONG Open (LPCTSTR lpszDevice, DWORD dwInQueue = 0, DWORD dwOutQueue = 0, bool fStartListener = false);

// Close the serial port.
virtual LONG Close (void);

// Start the listener thread
virtual LONG StartListener (void);

// Stop the listener thread. Because the other thread might be
// busy processing data it might take a while, so you can specify
// a time-out.
virtual LONG StopListener (DWORD dwTimeout = INFINITE);

protected:
// Each opened COM-port uses its own specific thread, which will
// wait for one of the events to happen. When an event happens,
// then the client window is send a message informing about the
// event.
static DWORD WINAPI ThreadProc (LPVOID lpArg);
DWORD ThreadProc (void);

// Event handler
virtual void OnEvent (EEvent eEvent, EError eError) = 0;

protected:
// The WaitEvent method is being used by this class internally
// and shouldn't be used by client applications. Client
// application should monior the messages.
using CSerial::WaitEvent;

// The event-type is send in the WPARAM of the message and
// the GetEventType method returns the wrong data, so we'll
// hide this method for client applications to avoid problems.
using CSerial::GetEventType;
using CSerial::GetError;

protected:
// Internal attributes
bool m_fStopping;
HANDLE m_hThread;

#ifndef SERIAL_NO_OVERLAPPED
// Handle for overlapped operations in worker-thread
HANDLE m_hevtOverlappedWorkerThread;
#endif
};

#endif // __SERIAL_EX_H

Asynchronous I/O

bool fQuit = false;
while (!fQuit)
{
// Wait for a communication event or windows message

switch (::MsgWaitForMultipleObjects(1,&hevtCommEvent,FALSE,INFINITE,QS_ALLEVENTS))
{
case WAIT_OBJECT_0:
{
// There is a serial communication event, handle it...

HandleSerialEvent();
}
break;

case WAIT_OBJECT_0+1:
{
// There is a windows message, handle it...

MSG msg;
while (::PeekMessage(&msg,0,0,0,PM_REMOVE))
{
// Abort on a WM_QUIT message

if (msg.message == WM_QUIT) { fQuit = true; break; }

// Translate and dispatch the message

::TranslateMessage(&msg);
::DispatchMessage(&msg);
}
}
break;

default:
{
// Error handling...

}
break;
}
}

SERIAL PORT COMMUNICATION(USB)

#define STRICT
#include

#include

#include "Serial.h"


int WINAPI _tWinMain
(
HINSTANCE /*hInst*/,
HINSTANCE /*hInstPrev*/,
LPTSTR /*lptszCmdLine*/,
int /*nCmdShow*/
)
{
CSerial serial;

// Attempt to open the serial port (COM1)

serial.Open(_T("COM1"));

// Setup the serial port (9600,N81) using hardware handshaking

serial.Setup(CSerial::EBaud9600,CSerial::EData8,CSerial::EParNone,CSerial::EStop1);
serial.SetupHandshaking(CSerial::EHandshakeHardware);

// The serial port is now ready and we can send/receive data. If

// the following call blocks, then the other side doesn't support

// hardware handshaking.

serial.Write("Hello world");

// Close the port again

serial.Close();
return 0;
}

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