mainfrm.cpp

E:Visual_C__MFC扩展编程实例 实例52：使用串行或并行I/O

// MainFrm.cpp : implementation of the CMainFrame class
//

#include "stdafx.h"
#include "Wzd.h"

#include "MainFrm.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CMainFrame

IMPLEMENT_DYNAMIC(CMainFrame, CMDIFrameWnd)

BEGIN_MESSAGE_MAP(CMainFrame, CMDIFrameWnd)
	//{{AFX_MSG_MAP(CMainFrame)
	ON_WM_CREATE()
	ON_COMMAND(ID_TEST_PARALLEL, OnTestParallel)
	ON_COMMAND(ID_TEST_SERIAL, OnTestSerial)
	//}}AFX_MSG_MAP
	ON_MESSAGE(WM_NEW_MESSAGE,OnNewMessage)
END_MESSAGE_MAP()

static UINT indicators[] =
{
	ID_SEPARATOR,           // status line indicator
	ID_INDICATOR_CAPS,
	ID_INDICATOR_NUM,
	ID_INDICATOR_SCRL,
};

/////////////////////////////////////////////////////////////////////////////
// CMainFrame construction/destruction

CMainFrame::CMainFrame()
{
	// TODO: add member initialization code here
	
}

CMainFrame::~CMainFrame()
{
}

int CMainFrame::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
	if (CMDIFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;
	
	if (!m_wndToolBar.Create(this) ||
		!m_wndToolBar.LoadToolBar(IDR_MAINFRAME))
	{
		TRACE0("Failed to create toolbar\n");
		return -1;      // fail to create
	}

	if (!m_wndStatusBar.Create(this) ||
		!m_wndStatusBar.SetIndicators(indicators,
		  sizeof(indicators)/sizeof(UINT)))
	{
		TRACE0("Failed to create status bar\n");
		return -1;      // fail to create
	}

	// TODO: Remove this if you don't want tool tips or a resizeable toolbar
	m_wndToolBar.SetBarStyle(m_wndToolBar.GetBarStyle() |
		CBRS_TOOLTIPS | CBRS_FLYBY | CBRS_SIZE_DYNAMIC);

	// TODO: Delete these three lines if you don't want the toolbar to
	//  be dockable
	m_wndToolBar.EnableDocking(CBRS_ALIGN_ANY);
	EnableDocking(CBRS_ALIGN_ANY);
	DockControlBar(&m_wndToolBar);

	return 0;
}

BOOL CMainFrame::PreCreateWindow(CREATESTRUCT& cs)
{
	// TODO: Modify the Window class or styles here by modifying
	//  the CREATESTRUCT cs

	return CMDIFrameWnd::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMainFrame diagnostics

#ifdef _DEBUG
void CMainFrame::AssertValid() const
{
	CMDIFrameWnd::AssertValid();
}

void CMainFrame::Dump(CDumpContext& dc) const
{
	CMDIFrameWnd::Dump(dc);
}

#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMainFrame message handlers

void CMainFrame::OnTestParallel() 
{
	CFileException e;
	if (m_parallel.OpenLPT(
		1,			// LPT number (1,2,etc.)
		&e			// exception errors (defaults to NULL)
		))
	{
		char hello[]={"Hello!"};
		m_parallel.Send(
			hello,	// buffer to send
			7		// length of buffer to send
			);


		m_parallel.Listen(
		10,			// size of message header
		-1,			// position of size of message body in header
					// -1 means all message lengths are fixed
		&m_queue,	// CWzdQue to store new messages
		this,		// pWnd of window to send "new message" message
		WM_NEW_MESSAGE, // message to send
		0			// the user defined id of which port sent the message
		);
	}
}

void CMainFrame::OnTestSerial() 
{
	CFileException e;
	if (m_serial.OpenCOM(
		1,			// COM number (1,2,etc.)
		&e,			// exception errors (defaults to NULL)
		CBR_19200,	// baud rate, also CBR_1200, CBR_2400, etc.
		NOPARITY,	// parity, also EVENPARITY, ODDPARITY, MARKPARITY, SPACEPARITY
		8,			// number of bits in a byte
		ONESTOPBIT // stopbits, also ONE5STOPBITS, TWOSTOPBITS
		))

	{
		char hello[]={"Hello!"};
		m_serial.Send(
			hello,	// buffer to send
			7		// length of buffer to send
			);

		m_serial.Listen(
		10,			// size of message header
		-1,			// position of size of message body in header
					// -1 means all message lengths are fixed
		&m_queue,	// CWzdQue to store new messages
		this,		// pWnd of window to send "new message" message
		WM_NEW_MESSAGE, // message to send
		1			// the user defined id of which port sent the message
		);
	}
}

LRESULT CMainFrame::OnNewMessage(WPARAM,LPARAM) 
{
	CWzdMsg *pMsg=NULL;
	while (pMsg=m_queue.Remove())
	{
		// pMsg contains:
		//		m_nID -- the user defined id of which port sent the message
		//		m_pHdr -- the message header
		//		m_pBody -- the message body
		//		m_len --	the total message length
		//		m_error --	any errors

		// make sure to delete the message after processing!
		delete pMsg;
	}
	return 0L;
}