基于VC的MFC界面开发

时间：2023-03-08 21:40:38

教你熟悉VC6.0创建一个可视化软件的过程

UpdateData(TRUE);//将输入数据赋给文本框变量。

UpdateData(FALSE);//将内容显示在文本框中

AfxMessageBox("演示弹窗");

当使用弹窗的时候会阻塞进程。

使用VC++6.0开发一个弹窗程序

进阶（未实现）：VC++6.0可视化窗口怎么填加图片

本例是基于C语言实现的Windows socket的编程。

注意，在新建时不要勾选“Windows Socket”，因为用到了<winsock2.h>，勾选后会报错，说有一个结构体被定义了两次：

（这前面是你的VC安装路径）include\winsock2.h(99) : error C2011: 'fd_set' : 'struct' type redefinition

参考代码如下：

// 333Dlg.cpp : implementation file

//客户端

#include "stdafx.h"

#include "333.h"

#include "333Dlg.h"

#include <stdlib.h>

#include<Winsock2.h>

#pragma comment (lib,"ws2_32.lib")

#define BUFFER_SIZE 1024

#define MY_PORT 3434

#ifdef _DEBUG

#define new DEBUG_NEW

#undef THIS_FILE

static char THIS_FILE[] = __FILE__;

#endif

/////////////////////////////////////////////////////////////////////////////

// CMy333Dlg dialog

CMy333Dlg::CMy333Dlg(CWnd* pParent /*=NULL*/)

	: CDialog(CMy333Dlg::IDD, pParent)

{

	//{{AFX_DATA_INIT(CMy333Dlg)

	m = _T("");

	//}}AFX_DATA_INIT

	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32

	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

}

void CMy333Dlg::DoDataExchange(CDataExchange* pDX)

{

	CDialog::DoDataExchange(pDX);

	//{{AFX_DATA_MAP(CMy333Dlg)

	DDX_Text(pDX, IDC_EDIT1, m);

	//}}AFX_DATA_MAP

}

BEGIN_MESSAGE_MAP(CMy333Dlg, CDialog)

	//{{AFX_MSG_MAP(CMy333Dlg)

	ON_WM_PAINT()

	ON_WM_QUERYDRAGICON()

	ON_BN_CLICKED(IDC_BUTTON1, OnButton1)

	ON_EN_CHANGE(IDC_EDIT1, OnChangeEdit1)

	//}}AFX_MSG_MAP

END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////

// CMy333Dlg message handlers

BOOL CMy333Dlg::OnInitDialog()

{

	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically

	//  when the application's main window is not a dialog

	SetIcon(m_hIcon, TRUE);			// Set big icon

	SetIcon(m_hIcon, FALSE);		// Set small icon

	// TODO: Add extra initialization here

	return TRUE;  // return TRUE  unless you set the focus to a control

}

// If you add a minimize button to your dialog, you will need the code below

//  to draw the icon.  For MFC applications using the document/view model,

//  this is automatically done for you by the framework.

void CMy333Dlg::OnPaint()

{

	if (IsIconic())

	{

		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle

		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;

		// Draw the icon

		dc.DrawIcon(x, y, m_hIcon);

	}

	else

	{

		CDialog::OnPaint();

	}

}

// The system calls this to obtain the cursor to display while the user drags

//  the minimized window.

HCURSOR CMy333Dlg::OnQueryDragIcon()

{

	return (HCURSOR) m_hIcon;

}

void CMy333Dlg::OnButton1()

{

	// TODO: Add your control notification handler code here

		// TODO: Add your control notification handler code here

	SOCKET conn_sock;

	struct sockaddr_in client_addr;

	//WSA初始化

	WSADATA wsadata;

	WSAStartup(MAKEWORD(1,1),&wsadata);

	//配置connect

	conn_sock = socket(AF_INET,SOCK_STREAM,0);

	bind(conn_sock,(struct sockaddr*)&client_addr,sizeof(struct sockaddr));

	//配置server addr

	client_addr.sin_family = AF_INET;

	client_addr.sin_port = htons(MY_PORT);

	client_addr.sin_addr.s_addr = inet_addr("127.0.0.1");

	//链接

	connect(conn_sock,(struct sockaddr *)&client_addr,sizeof(struct sockaddr));

	//接收

	char rc[100] = "";

	recv(conn_sock,rc,sizeof(rc),0);

	//printf("From Server : %s\n",rc);

	AfxMessageBox("连接成功！");

	//输入路径

	//printf("Please input path:\n");

	//char path[100];

	//scanf("%s",&path);

	//发送路径

	//send(conn_sock,path,strlen(path),0);

	//打开文件，准备写入

	FILE * fp = fopen(m, "rt");

	if(NULL == fp)

	{

		//printf("File: %s Can Not Open To Write\n", path);

		AfxMessageBox("打开文件失败！");

		system("pause");

		exit(1);

	}

	else

	{

		char buffer[BUFFER_SIZE];

		memset(buffer, 0, BUFFER_SIZE);

		int length = 0;

		//发送文件内容，直到读不到文件

		while((length = fread(buffer, sizeof(char), BUFFER_SIZE, fp)) > 0)

		{

			if (send(conn_sock, buffer, length, 0) < 0)//向服务端发送

			{

				//printf("Send File: %s Failed\n", path);

				AfxMessageBox("发送失败！");

				break;

			}

			memset(buffer, 0, BUFFER_SIZE);

		}

		//printf("File: %s Transfer Successful!\n", path);

		AfxMessageBox("发送成功！");

	}

	fclose(fp); //关闭文件

	closesocket(conn_sock);

	WSACleanup();

}

void CMy333Dlg::OnChangeEdit1()

{

	// TODO: If this is a RICHEDIT control, the control will not

	// send this notification unless you override the CDialog::OnInitDialog()

	// function and call CRichEditCtrl().SetEventMask()

	// with the ENM_CHANGE flag ORed into the mask.

	// TODO: Add your control notification handler code here

	UpdateData(TRUE);//将输入数据赋给文本框变量。

	UpdateData(FALSE);//将内容显示在文本框中

}


// 111Dlg.cpp : implementation file

//服务器端

#include "stdafx.h"

#include "111.h"

#include "111Dlg.h"

#include <Winsock2.h>

#pragma comment (lib,"ws2_32.lib")

#define BUFFER_SIZE 1024

#define MY_PORT 3434

#ifdef _DEBUG

#define new DEBUG_NEW

#undef THIS_FILE

static char THIS_FILE[] = __FILE__;

#endif

/////////////////////////////////////////////////////////////////////////////

// CMy111Dlg dialog

CMy111Dlg::CMy111Dlg(CWnd* pParent /*=NULL*/)

	: CDialog(CMy111Dlg::IDD, pParent)

{

	//{{AFX_DATA_INIT(CMy111Dlg)

	m = _T("");

	//}}AFX_DATA_INIT

	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32

	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);

}

void CMy111Dlg::DoDataExchange(CDataExchange* pDX)

{

	CDialog::DoDataExchange(pDX);

	//{{AFX_DATA_MAP(CMy111Dlg)

	DDX_Text(pDX, IDC_EDIT1, m);

	//}}AFX_DATA_MAP

}

BEGIN_MESSAGE_MAP(CMy111Dlg, CDialog)

	//{{AFX_MSG_MAP(CMy111Dlg)

	ON_WM_PAINT()

	ON_WM_QUERYDRAGICON()

	ON_BN_CLICKED(IDC_BUTTON1, OnStart)

	ON_EN_CHANGE(IDC_EDIT1, OnChangeEdit1)

	//}}AFX_MSG_MAP

END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////

// CMy111Dlg message handlers

BOOL CMy111Dlg::OnInitDialog()

{

	CDialog::OnInitDialog();

	// Set the icon for this dialog.  The framework does this automatically

	//  when the application's main window is not a dialog

	SetIcon(m_hIcon, TRUE);			// Set big icon

	SetIcon(m_hIcon, FALSE);		// Set small icon

	// TODO: Add extra initialization here

	return TRUE;  // return TRUE  unless you set the focus to a control

}

// If you add a minimize button to your dialog, you will need the code below

//  to draw the icon.  For MFC applications using the document/view model,

//  this is automatically done for you by the framework.

void CMy111Dlg::OnPaint()

{

	if (IsIconic())

	{

		CPaintDC dc(this); // device context for painting

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		// Center icon in client rectangle

		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;

		// Draw the icon

		dc.DrawIcon(x, y, m_hIcon);

	}

	else

	{

		CDialog::OnPaint();

	}

}

// The system calls this to obtain the cursor to display while the user drags

//  the minimized window.

HCURSOR CMy111Dlg::OnQueryDragIcon()

{

	return (HCURSOR) m_hIcon;

}

void CMy111Dlg::OnStart()

{

	// TODO: Add your control notification handler code here

	//WSA初始化

	WSADATA wsadata;

	char *buffer = "Welcome ! Server connected.";//字符串

	struct sockaddr_in server_addr;

	SOCKET listen_socket;

	WSAStartup(MAKEWORD(1,1),&wsadata);

	//配置server addr

	server_addr.sin_family = AF_INET;

	server_addr.sin_port = htons(MY_PORT);

	server_addr.sin_addr.s_addr = htonl(INADDR_ANY);

	//配置listener

	listen_socket = socket(AF_INET,SOCK_STREAM,0);

	bind(listen_socket,(struct sockaddr*)&server_addr,sizeof(struct sockaddr));

	int flag = 1;

	while (flag)

	{

		//开始监听

		listen(listen_socket,5);

		int dummy = sizeof(SOCKADDR);

		//printf("Listening to client...\n");

		AfxMessageBox("等待客户端连接......");

		//建立连接

		SOCKET new_socket = accept(listen_socket,NULL,&dummy);

		//printf("Client connected!\n");

		AfxMessageBox("连接成功！准备从客户端接收文件......");

		//发送信息

		send(new_socket,buffer,strlen(buffer),0);

		char rc[100] = "";

		//recv(new_socket,rc,sizeof(rc),0);

		//printf("File name from Client : %s\n",rc);

		//char path[100];

		char buf[999];

		//printf("Please set a path to save file:\n");

		FILE * fp = fopen(m, "wt");//以写入的方式打开文件

		if (NULL == fp)

		{

			//printf("File: %s Not Found\n", path);

			AfxMessageBox("写入文件失败！");

		}

		else

		{

			memset(buf, 0, BUFFER_SIZE);

			unsigned int length = 0;

			//接受到客户端发来的文件数据

			while ((length = recv(new_socket, buf, BUFFER_SIZE, 0)) > 0)

			{

				//把发来的数据写入到文件中

				if (fwrite(buf, sizeof(char), length, fp) < length)

				{

					//printf("File: %s Write Failed\n", path);

					AfxMessageBox("接收失败！");

					break;

				}

				memset(buf, 0, BUFFER_SIZE);

			}

			//printf("Receive File: %s From Server Successful!\n", path);

			AfxMessageBox("接收成功！");

			flag = 0;

		}

		fclose(fp); //关闭文件

		closesocket(new_socket);

	}

	closesocket(listen_socket);

	WSACleanup();

}

void CMy111Dlg::OnChangeEdit1()

{

	// TODO: If this is a RICHEDIT control, the control will not

	// send this notification unless you override the CDialog::OnInitDialog()

	// function and call CRichEditCtrl().SetEventMask()

	// with the ENM_CHANGE flag ORed into the mask.

	// TODO: Add your control notification handler code here

	UpdateData(TRUE);//将输入数据赋给文本框变量。

	UpdateData(FALSE);//将内容显示在文本框中

}

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