随笔c | 易学教程

弹窗查询

1. 插入一个dialg，设计界面如图

2. 新建类，serch，确定，查看类向导

4. 查询内添加代码：

void COdbctView::OnButton4()

{

// TODO: Add your control notification handler code here

search f;

this->UpdateData(true);

if(f.DoModal()==IDOK)

{ CString s="name";

m_pSet->Close();

m_pSet->m_strFilter=s+"='"+f.m_value+"'";

m_pSet->Open();

this->UpdateData(false);

}

5. 查询运行成功

增

右击插入dialog，设计如图

2. 新建一个类

3. 添加变量

void COdbctView::OnAdd()

{

// TODO: Add your control notification handler code here

insert d;

if(d.DoModal()==IDOK){

m_pSet->AddNew();

m_pSet->m_name=d.m_name;

m_pSet->m_sex =d.m_sex;

m_pSet->m_age =d.m_age;

m_pSet->Update();

m_pSet->Requery();

}}.

删

void COdbctView::OnDel()

{

// TODO: Add your control notification handler code here

m_pSet->Delete();

m_pSet->MoveNext();

if(m_pSet->IsEOF())

{

m_pSet->MoveLast();

}

if(m_pSet->IsBOF())

{

m_pSet->SetFieldNull(NULL);

}

m_pSet->Requery();

this->UpdateData(false);

}

改

void COdbctView::OnAdj()

{

// TODO: Add your control notification handler code here

insert d;

d.m_name=m_pSet->m_name;

d.m_sex=m_pSet->m_sex;

d.m_age=m_pSet->m_age;

if(d.DoModal()==IDOK)

{

m_pSet->Edit();

m_pSet->m_name=d.m_name;

m_pSet->m_sex=d.m_sex;

m_pSet->m_age=d.m_age;

m_pSet->Update();

this->UpdateData(false);

}

上一条下一条

添加两个上一条下一条按钮
添加单机事件

3.为两个按钮添加变量分别为m_prebt,m_nextbt

代码：

void COdbctView::OnPre()

{

// TODO: Add your control notification handler code here

if (m_pSet->IsBOF())

{

m_prebt.EnableWindow(false);

return ;

}

m_nextbt.EnableWindow(true);

m_pSet->MovePrev();

this->UpdateData(false);

}

void COdbctView::OnNext()

{

// TODO: Add your control notification handler code here

m_pSet->MoveNext();

if (m_pSet->IsEOF())

{

m_nextbt.EnableWindow(false);

return ;

}

m_prebt.EnableWindow(true);

this->UpdateData(false);

}

找到项目

zuyangpu.h右击属性

客户端

一．创建一个基于对话框的程序，设置如下界面

二．为控件添加变量

三．Ip地址初始化

SetDlgItemText(IDC_IPADDRESS1,"127.0.0.1");

四．构造函数中设置m_port为7788

m_port = 7788;

四．点击类向导，第一个选项卡，sasa，sasadlg，create，点击新建类

继续点，生成如下三个函数.

六．Cpp和h中添加头文件

七．添加代码

void MySocket::OnReceive(int nErrorCode)

{

// TODO: Add your specialized code here and/or call the base class

//获取对话框指针

CSasaApp *pApp=(CSasaApp*)AfxGetApp();

CSasaDlg *pDlg=(CSasaDlg*)pApp->m_pMainWnd;

//王编辑框中插入消息

char *pbuf=new char[4096];

int ibufsize=4096;

int ircvd;

CString strrecvd;

//接收数据

ircvd=Receive(pbuf,ibufsize);

if(ircvd==SOCKET_ERROR){

pDlg->MessageBox("SOCKET_ERROR");

}else{

pbuf[ircvd]=NULL;

pDlg->m_recmsg+="服务器：";

pDlg->m_recmsg+=pbuf;

pDlg->m_recmsg+="\r\n";

pDlg->RefreshScreen();

}

delete pbuf;

CAsyncSocket::OnReceive(nErrorCode);

}

void MySocket::OnConnect(int nErrorCode)

{

// TODO: Add your specialized code here and/or call the base class

CSasaApp *pApp=(CSasaApp*)AfxGetApp();

CSasaDlg *pDlg=(CSasaDlg*)pApp->m_pMainWnd;

int iResult=nErrorCode;

CString buffer;

int namelen;

if(iResult!=0){

buffer.Format("连接服务器失败。\r\n");

pDlg->m_recmsg+=buffer;

}else{

namelen=sizeof(sockaddr_in);

buffer.Format("成功连接到服务器。%s:%d.\r\n",pDlg->m_ipstr,pDlg->m_port);

pDlg->m_recmsg+=buffer;

pDlg->GetDlgItem(IDC_SEND)->EnableWindow(TRUE);

pDlg->GetDlgItem(IDOK)->EnableWindow(TRUE);

}

pDlg->RefreshScreen();//刷新窗口

CAsyncSocket::OnConnect(nErrorCode);

}

八．右击dlg添加成员函数

九．添加

十．在CSasaDlg中添加变量：

右击添加变量

十一.双击连接按钮，添加连接按钮的消息映射OnConnect()函数

void CSasaDlg::OnConnect()

{

// TODO: Add your control notification handler code here

if(!AfxSocketInit()){

AfxMessageBox("IDP_SOCKETS_INIT_FAILED");

return ;

}

GetDlgItemText(IDC_IPADDRESS1,m_ipstr);

m_socket.m_hSocket=INVALID_SOCKET;

UpdateData(true);

BOOL flag=m_socket.Create();

if(!flag){

AfxMessageBox("SCOKET ERROR");

return ;

}

m_socket.Connect(m_ipstr,m_port);

}

十二. 双击发送按钮，添加发送按钮的消息映射OnSend ()函数

void CSasaDlg::OnSend()

{

// TODO: Add your control notification handler code here

int ilen;

int isent;

UpdateData(TRUE);

if(m_msg!=""){

ilen=m_msg.GetLength();

isent=m_socket.Send(LPCTSTR(m_msg),ilen);

if(isent==SOCKET_ERROR){

MessageBox("连接失败，请重试！");

}else{

m_recmsg+="客户机："+m_msg;

m_recmsg+="\r\n";

UpdateData(FALSE);

}

服务器

1.
2. 设计界面如图：

3. 控件ID等

IDC_PORT 添加成员变量UNIT m_port

IDC_sendmsg 添加成员变量CString m_msg

IDC_msg 添加成员变量CString m_sendmsg

IDC_listen IDC_SEND

4. 查看类向导----〉ADDCLASS---〉new

void MySocket::OnReceive(int nErrorCode)

{

// TODO: Add your specialized code here and/or call the base class

CFuwuqiApp* pApp=(CFuwuqiApp*)AfxGetApp();

CFuwuqiDlg* pDlg=(CFuwuqiDlg*)pApp->m_pMainWnd;

//王编辑框中插入消息

char *pbuf=new char[4096];

int ibufsize=4096;

int ircvd;

CString strrecvd;

ircvd=Receive(pbuf,ibufsize);

if(ircvd==SOCKET_ERROR){

pDlg->MessageBox("SOCKET_ERROR");

}else{

pbuf[ircvd]=NULL;

pDlg->m_msg+="客户机：";

pDlg->m_msg+=pbuf;

pDlg->m_msg+="\r\n";

pDlg->RefreshScreen();

}

delete pbuf;

CAsyncSocket::OnReceive(nErrorCode);

}

6.查看类向导----〉ADDCLASS---〉new

6. 右击CMyServerSocket，添加成员变量

7. 查看类向导-

void CMyServerSocket::OnAccept(int nErrorCode)

{

// TODO: Add your specialized code here and/or call the base class

CFuwuqiApp* pApp=(CFuwuqiApp*)AfxGetApp();

CFuwuqiDlg* pDlg=(CFuwuqiDlg*)pApp->m_pMainWnd;

//显示连接消息

pDlg->m_msg="客户机连接到服务器";

pDlg->m_msg="\r\n";

pDlg->RefreshScreen();

pDlg->GetDlgItem(IDC_SEND)->EnableWindow(true);

pDlg->GetDlgItem(IDOK)->EnableWindow(true);

MySocket* psocket=new MySocket();

if(Accept(*psocket)){

psocket->AsyncSelect(FD_READ);

m_socket=psocket;

}else{

delete psocket;

}

CAsyncSocket::OnAccept(nErrorCode);

}

8. 在MyServerSocket。H中添加头文件 #include "MySocket.h"
9. 双击正在监听按钮，创建函数

void CFuwuqiDlg::OnListen()

{

// TODO: Add your control notification handler code here

UpdateData(true);

if(!AfxSocketInit()){

AfxMessageBox("IDP_SOCKETS_INIT_FAILED");

return ;

}

BOOL flag=m_serversocket.Create(m_port);

if(!flag){

AfxMessageBox("SOCKET ERROR");

return ;

}

flag=m_serversocket.Listen(1);

if(!flag){

AfxMessageBox("SOCKET ERROR");

return ;

}

SetDlgItemText(IDC_LISTEN,"正在监听");

}

10. 双击发送按钮，创建函数

void CFuwuqi3Dlg::OnSend()

{

// TODO: Add your control notification handler code here

int ilen;

int isent;

UpdateData(true);

if(m_sendmsg!=""){

ilen=m_sendmsg.GetLength();

isent=m_serversocket.m_socket->Send(LPCTSTR(m_sendmsg),ilen);

if(isent==SOCKET_ERROR){

MessageBox("连接失败，请重试");

}else{

m_msg+="服务器"+m_sendmsg;

m_msg+="\r\n";

UpdateData(false);

}

10. 右击C。。Dlg，添加成员变量，

11. MySocket。h添加头文件#include "MyServerSocket.h"
12.

来源：https://www.cnblogs.com/munds/p/11846677.html

标签

socket函数

handler

notification