chatroomserverdlg.cpp

VC.net 的一些有用的技巧

// ChatRoomServerDlg.cpp : 实现文件
//

#include "stdafx.h"
#include "ChatRoomServer.h"
#include "ChatRoomServerDlg.h"

#ifdef _DEBUG
#define new DEBUG_NEW
#endif


// 用于应用程序“关于”菜单项的 CAboutDlg 对话框

class CAboutDlg : public CDialog
{
public:
	CAboutDlg();

// 对话框数据
	enum { IDD = IDD_ABOUTBOX };

	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    // DDX/DDV 支持

// 实现
protected:
	DECLARE_MESSAGE_MAP()
};

CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
}

void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
}

BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
END_MESSAGE_MAP()


// CChatRoomServerDlg 对话框



CChatRoomServerDlg::CChatRoomServerDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CChatRoomServerDlg::IDD, pParent)
	, m_strServerInfo(_T(""))
	, m_pSocket(NULL)
{
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CChatRoomServerDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	DDX_Control(pDX, IDC_LIST_CHATINFO, m_ctrlChatInfo);
	DDX_Text(pDX, IDC_EDIT_SERVERINFO, m_strServerInfo);
	DDX_Control(pDX, IDC_BUTTON_SETPORT, m_ctrlSetPort);
}

BEGIN_MESSAGE_MAP(CChatRoomServerDlg, CDialog)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	//}}AFX_MSG_MAP
	ON_BN_CLICKED(IDC_BUTTON_SETPORT, OnSetport)
	ON_BN_CLICKED(IDCANCEL, OnCancel)
	ON_BN_CLICKED(IDC_BUTTON_SENDINFO, OnSendinfo)
END_MESSAGE_MAP()


// CChatRoomServerDlg 消息处理程序

BOOL CChatRoomServerDlg::OnInitDialog()
{
	CDialog::OnInitDialog();

	// 将\“关于...\”菜单项添加到系统菜单中。

	// IDM_ABOUTBOX 必须在系统命令范围内。
	ASSERT((IDM_ABOUTBOX & 0xFFF0) == IDM_ABOUTBOX);
	ASSERT(IDM_ABOUTBOX < 0xF000);

	CMenu* pSysMenu = GetSystemMenu(FALSE);
	if (pSysMenu != NULL)
	{
		CString strAboutMenu;
		strAboutMenu.LoadString(IDS_ABOUTBOX);
		if (!strAboutMenu.IsEmpty())
		{
			pSysMenu->AppendMenu(MF_SEPARATOR);
			pSysMenu->AppendMenu(MF_STRING, IDM_ABOUTBOX, strAboutMenu);
		}
	}

	// 设置此对话框的图标。当应用程序主窗口不是对话框时，框架将自动
	//  执行此操作
	SetIcon(m_hIcon, TRUE);			// 设置大图标
	SetIcon(m_hIcon, FALSE);		// 设置小图标

	// TODO：在此添加额外的初始化代码
	
	return TRUE;  // 除非设置了控件的焦点，否则返回 TRUE
}

void CChatRoomServerDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
	if ((nID & 0xFFF0) == IDM_ABOUTBOX)
	{
		CAboutDlg dlgAbout;
		dlgAbout.DoModal();
	}
	else
	{
		CDialog::OnSysCommand(nID, lParam);
	}
}

// 如果向对话框添加最小化按钮，则需要下面的代码
//  来绘制该图标。对于使用文档/视图模型的 MFC 应用程序，
//  这将由框架自动完成。

void CChatRoomServerDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); // 用于绘制的设备上下文

		SendMessage(WM_ICONERASEBKGND, reinterpret_cast<WPARAM>(dc.GetSafeHdc()), 0);

		// 使图标在工作矩形中居中
		int cxIcon = GetSystemMetrics(SM_CXICON);
		int cyIcon = GetSystemMetrics(SM_CYICON);
		CRect rect;
		GetClientRect(&rect);
		int x = (rect.Width() - cxIcon + 1) / 2;
		int y = (rect.Height() - cyIcon + 1) / 2;

		// 绘制图标
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}

//当用户拖动最小化窗口时系统调用此函数取得光标显示。
HCURSOR CChatRoomServerDlg::OnQueryDragIcon()
{
	return static_cast<HCURSOR>(m_hIcon);
}

void CChatRoomServerDlg::OnSetport()
{
	// TODO: 在此添加控件通知处理程序代码
	CSetPortDlg dlg;
	if(dlg.DoModal()==IDOK)
	{
		m_pSocket=new CListenSocket;
		if(m_pSocket->Create(dlg.m_uintPortAddress))
			if(!m_pSocket->Listen())
				MessageBox("端口设置错误！","服务器程序");
			else
			{
				MessageBox("端口设置生效！","服务器程序");
				m_ctrlSetPort.EnableWindow(FALSE);
			}
	}
}

void CChatRoomServerDlg::OnCancel()
{
	// TODO: 在此添加控件通知处理程序代码
	if(m_pSocket)
		delete m_pSocket;
	m_SocketList.RemoveAll();
	CDialog::OnCancel();
}

void CChatRoomServerDlg::OnSendinfo()
{
	// TODO: 在此添加控件通知处理程序代码
	if(!m_SocketList.IsEmpty())
	{
		UpdateData(TRUE);
		m_strServerInfo="服务器消息："+m_strServerInfo;
		m_ctrlChatInfo.AddString(m_strServerInfo);
		POSITION pos;
		CClientSocket* pSocket=(CClientSocket*)m_SocketList.GetHead();
		for(pos=m_SocketList.GetHeadPosition();pos!=NULL;)
		{
			pSocket=(CClientSocket*)m_SocketList.GetNext(pos);
			pSocket->Send(LPCTSTR(m_strServerInfo),m_strServerInfo.GetLength());
		}
		m_strServerInfo.Empty();
		UpdateData(FALSE);
	}
	else
		MessageBox("未建立有Socket连接，无法传递消息！","服务器程序");
}

void CChatRoomServerDlg::GetSocketMsg(CClientSocket* pSocket)
{
	char buff[1000];
	int count;
	count=pSocket->Receive(buff,1000);
	buff[count]=0;
	m_ctrlChatInfo.AddString(buff);
	POSITION pos;
	CClientSocket* pSocket1=(CClientSocket*)m_SocketList.GetHead();
	for(pos=m_SocketList.GetHeadPosition();pos!=NULL;)
	{
		pSocket1=(CClientSocket*)m_SocketList.GetNext(pos);
		pSocket1->Send(buff,count);
	}
}