udptestdlg.h

用UDP实现的一个点对点聊天程序。 用异步方式实现

// UDPTestDlg.h : header file
//

#if !defined(AFX_UDPTESTDLG_H__836D5BA1_3941_4E0D_9D1F_DB1F6425684B__INCLUDED_)
#define AFX_UDPTESTDLG_H__836D5BA1_3941_4E0D_9D1F_DB1F6425684B__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

/////////////////////////////////////////////////////////////////////////////
// CUDPTestDlg dialog
#include <afxsock.h>
const UINT	PORT=5600;
const char IP[]=_T("172.18.18.207");
const int WM_SOCKET_READ=WM_USER+1;
class CUDPTestDlg : public CDialog
{
// Construction
public:
	void AddMessageToMessageBar(CString strMessage);
	CUDPTestDlg(CWnd* pParent = NULL);	// standard constructor

// Dialog Data
	//{{AFX_DATA(CUDPTestDlg)
	enum { IDD = IDD_UDPTEST_DIALOG };
	CString	m_your_ip;
	UINT	m_your_port;
	UINT	m_my_port;
	CString	m_my_ip;
	//}}AFX_DATA

	// ClassWizard generated virtual function overrides
	//{{AFX_VIRTUAL(CUDPTestDlg)
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support
	//}}AFX_VIRTUAL

// Implementation
protected:
	HICON m_hIcon;

	// Generated message map functions
	//{{AFX_MSG(CUDPTestDlg)
	virtual BOOL OnInitDialog();
	afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
	afx_msg void OnPaint();
	afx_msg HCURSOR OnQueryDragIcon();
	afx_msg void OnSendButton();
	afx_msg void OnDestroy();
	afx_msg void OnStartButton();
	//}}AFX_MSG
	afx_msg LRESULT	OnSocketRead(WPARAM wParam,LPARAM lParam);
	DECLARE_MESSAGE_MAP()
private:
	BOOL Start();
private:
	BOOL		m_bStart;

	SOCKET		m_server;
	SOCKADDR_IN	server_addr;

	int			m_nAddrLen;
	SOCKADDR_IN	client_addr;
};

//{{AFX_INSERT_LOCATION}}
// Microsoft Visual C++ will insert additional declarations immediately before the previous line.

#endif // !defined(AFX_UDPTESTDLG_H__836D5BA1_3941_4E0D_9D1F_DB1F6425684B__INCLUDED_)