mailslotserverview.cpp

visual c＋＋网络通信程序开发指南附带的程序所有的源码。

// MailslotServerView.cpp : implementation of the CMailslotServerView class
//

#include "stdafx.h"
#include "MailslotServer.h"

#include "MailslotServerDoc.h"
#include "MailslotServerView.h"

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

UINT ReadProc(LPVOID lpParam)
{
	// 数据接收缓存
	char buffer[256];

	// 实际接收到的字节数
	DWORD dwNumberOfBytesRead;

	// 得到视指针
	CMailslotServerView* pView = (CMailslotServerView*)lpParam;

	// 持续对邮槽进行读取
	while (ReadFile(pView->m_hMailSlot, buffer, 256, &dwNumberOfBytesRead, NULL) != 0)
	{
		// 显示从邮槽接收到的数据
		buffer[dwNumberOfBytesRead] = '\0';
		pView->m_sMessage = CString(buffer);
		pView->Invalidate();
	}	
	return 0;
}

/////////////////////////////////////////////////////////////////////////////
// CMailslotServerView

IMPLEMENT_DYNCREATE(CMailslotServerView, CView)

BEGIN_MESSAGE_MAP(CMailslotServerView, CView)
	//{{AFX_MSG_MAP(CMailslotServerView)
	ON_COMMAND(ID_CREATE_MAILSLOT, OnCreateMailslot)
	//}}AFX_MSG_MAP
	// Standard printing commands
	ON_COMMAND(ID_FILE_PRINT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_DIRECT, CView::OnFilePrint)
	ON_COMMAND(ID_FILE_PRINT_PREVIEW, CView::OnFilePrintPreview)
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CMailslotServerView construction/destruction

CMailslotServerView::CMailslotServerView()
{
	// TODO: add construction code here

}

CMailslotServerView::~CMailslotServerView()
{
}

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

	return CView::PreCreateWindow(cs);
}

/////////////////////////////////////////////////////////////////////////////
// CMailslotServerView drawing

void CMailslotServerView::OnDraw(CDC* pDC)
{
	CMailslotServerDoc* pDoc = GetDocument();
	ASSERT_VALID(pDoc);
	// TODO: add draw code for native data here
	pDC->TextOut(10, 10, m_sMessage);
}

/////////////////////////////////////////////////////////////////////////////
// CMailslotServerView printing

BOOL CMailslotServerView::OnPreparePrinting(CPrintInfo* pInfo)
{
	// default preparation
	return DoPreparePrinting(pInfo);
}

void CMailslotServerView::OnBeginPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add extra initialization before printing
}

void CMailslotServerView::OnEndPrinting(CDC* /*pDC*/, CPrintInfo* /*pInfo*/)
{
	// TODO: add cleanup after printing
}

/////////////////////////////////////////////////////////////////////////////
// CMailslotServerView diagnostics

#ifdef _DEBUG
void CMailslotServerView::AssertValid() const
{
	CView::AssertValid();
}

void CMailslotServerView::Dump(CDumpContext& dc) const
{
	CView::Dump(dc);
}

CMailslotServerDoc* CMailslotServerView::GetDocument() // non-debug version is inline
{
	ASSERT(m_pDocument->IsKindOf(RUNTIME_CLASS(CMailslotServerDoc)));
	return (CMailslotServerDoc*)m_pDocument;
}
#endif //_DEBUG

/////////////////////////////////////////////////////////////////////////////
// CMailslotServerView message handlers

void CMailslotServerView::OnCreateMailslot() 
{
	// 创建邮槽
	m_hMailSlot = CreateMailslot("\\\\.\\Mailslot\\Test", 0, MAILSLOT_WAIT_FOREVER, NULL);
	if (m_hMailSlot == INVALID_HANDLE_VALUE)
	{
		m_sMessage.Format("创建邮槽失败,失败代码:%d", GetLastError());
		Invalidate();
		return;
	}
	else
	{
		m_sMessage = "成功创建邮槽!";
		Invalidate();
	}

	// 开启数据接收线程
	AfxBeginThread(ReadProc, this);
}

BOOL CMailslotServerView::DestroyWindow() 
{
	// 关闭邮槽句柄
	CloseHandle(m_hMailSlot);	

	return CView::DestroyWindow();
}