静态文本框运行时输入数据老是自动清空
我贴出有关所有代码，大神看看，谢谢！// DTU测试软件Dlg.cpp : implementation file
//
#include "stdafx.h"
#include "DTU测试软件.h"
#include "DTU测试软件Dlg.h"
#include "Message.h"
#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////////////////////
// CAboutDlg dialog used for App About
class CAboutDlg : public CDialog
{
public:
CAboutDlg();
// Dialog Data
//{{AFX_DATA(CAboutDlg)
enum { IDD = IDD_ABOUTBOX };
//}}AFX_DATA
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CAboutDlg)
protected:
virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support
//}}AFX_VIRTUAL
// Implementation
protected:
//{{AFX_MSG(CAboutDlg)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
CAboutDlg::CAboutDlg() : CDialog(CAboutDlg::IDD)
{
//{{AFX_DATA_INIT(CAboutDlg)
//}}AFX_DATA_INIT
}
void CAboutDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CAboutDlg)
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CAboutDlg, CDialog)
//{{AFX_MSG_MAP(CAboutDlg)
// No message handlers
//}}AFX_MSG_MAP
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CDTUDlg dialog
CDTUDlg::CDTUDlg(CWnd* pParent /*=NULL*/)
: CDialog(CDTUDlg::IDD, pParent)
{
//{{AFX_DATA_INIT(CDTUDlg)
m_EditRec = _T("");
m_EditSend = _T("");
m_EditLoIP = _T("");
m_EditReIP = _T("");
m_EditRePort = 0;
m_EditLoPort = 0;
m_EditByteCnt = 0;
m_EditFrCnt = 0;
m_EditFrLen = 0;
m_EditHearFrCnt = 0;
m_EditInErrCnt = 0;
m_EditLastData = _T("");
m_EditOtherFrCnt = 0;
m_EditThisData = _T("");
m_EditWorkFrCnt = 0;
m_EditOutErrCnt = 0;
m_EditRepeatFrCnt = 0;
//}}AFX_DATA_INIT
// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void CDTUDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
//{{AFX_DATA_MAP(CDTUDlg)
DDX_Control(pDX, IDC_EditRec, m_control);
DDX_Text(pDX, IDC_EditRec, m_EditRec);
DDX_Text(pDX, IDC_EditSend, m_EditSend);
DDX_Text(pDX, IDC_EditLoIP, m_EditLoIP);
DDX_Text(pDX, IDC_EditReIP, m_EditReIP);
DDX_Text(pDX, IDC_EditRePort, m_EditRePort);
DDX_Text(pDX, IDC_EditLoPort, m_EditLoPort);
DDX_Text(pDX, IDC_EditByteCnt, m_EditByteCnt);
DDX_Text(pDX, IDC_EditFrCnt, m_EditFrCnt);
DDX_Text(pDX, IDC_EditFrLen, m_EditFrLen);
DDX_Text(pDX, IDC_EditHeartFrCnt, m_EditHearFrCnt);
DDX_Text(pDX, IDC_EditInErrCnt, m_EditInErrCnt);
DDX_Text(pDX, IDC_EditLastData, m_EditLastData);
DDX_Text(pDX, IDC_EditOhterFrCnt, m_EditOtherFrCnt);
DDX_Text(pDX, IDC_EditThisData, m_EditThisData);
DDX_Text(pDX, IDC_EditWorkFrCnt, m_EditWorkFrCnt);
DDX_Text(pDX, IDC_EditOutErrCnt, m_EditOutErrCnt);
DDX_Text(pDX, IDC_EditRepeatFrCnt, m_EditRepeatFrCnt);
//}}AFX_DATA_MAP
}
BEGIN_MESSAGE_MAP(CDTUDlg, CDialog)
//{{AFX_MSG_MAP(CDTUDlg)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_BN_CLICKED(IDC_ButtonLink, OnButtonLink)
ON_BN_CLICKED(IDC_ButtonSend, OnButtonSend)
ON_BN_CLICKED(IDC_ButtonUnlink, OnButtonUnlink)
ON_BN_CLICKED(IDC_ButtonRClr, OnButtonRClr)
ON_BN_CLICKED(IDC_ButtonSClr, OnButtonSClr)
ON_BN_CLICKED(IDC_ButtonMsgClr, OnButtonMsgClr)
ON_BN_CLICKED(IDC_ButtonWClr, OnButtonWClr)
//}}AFX_MSG_MAP
ON_MESSAGE(WM_RECDATA, OnReadData)
END_MESSAGE_MAP()
/////////////////////////////////////////////////////////////////////////////
// CDTUDlg message handlers
BOOL CDTUDlg::OnInitDialog()
{
CDialog::OnInitDialog();
// Add "About..." menu item to system menu.
// IDM_ABOUTBOX must be in the system command range.
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);
}
}
// 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
char name[50];
int err;
err = gethostname(name, sizeof(name));
if (err == SOCKET_ERROR)
{
m_EditRec = "Get host name is failure!";
}
struct hostent *hn;
hn = gethostbyname(name);
m_EditLoIP = inet_ntoa(*(struct in_addr *)hn->h_addr_list[0]);
m_EditLoPort = 50000;
m_EditReIP = "222.18.168.253";
m_EditRePort = 40000;
m_EditByteCnt = 0;
m_EditFrCnt = 0;
m_EditFrLen = 0;
m_EditHearFrCnt = 0;
m_EditInErrCnt = 0;
m_EditOutErrCnt = 0;
m_EditOtherFrCnt = 0;
m_EditWorkFrCnt = 0;
m_EditRepeatFrCnt = 0;
m_EditThisData = "";
m_EditLastData = "";
m_EditRec = "";
m_EditSend = "";
CheckRadioButton(IDC_RadioAck0, IDC_RadioAck1, IDC_RadioAck0);
b_AckType = FALSE;
UpdateData(FALSE);
return TRUE; // return TRUE unless you set the focus to a control
}
void CDTUDlg::OnSysCommand(UINT nID, LPARAM lParam)
{
if ((nID & 0xFFF0) == IDM_ABOUTBOX)
{
CAboutDlg dlgAbout;
dlgAbout.DoModal();
}
else
{
CDialog::OnSysCommand(nID, lParam);
}
}
// 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 CDTUDlg::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 CDTUDlg::OnQueryDragIcon()
{
return (HCURSOR) m_hIcon;
}
/**
** Initialization UDP
**/
void CDTUDlg::OnButtonLink()
{
// TODO: Add your control notification handler code here
WSADATA wsadata;
WORD wVersionRequested;
int err;
char buffer[60], acktype[15];
wVersionRequested = MAKEWORD(2, 2);
err = WSAStartup( wVersionRequested, &wsadata);
if (err != 0)
{
m_EditRec = "we could not find a usable";
UpdateData(FALSE);
return ;
}
if (LOBYTE(wsadata.wVersion) != 2
|| HIBYTE(wsadata.wVersion) != 2)
{
WSACleanup();
m_EditRec = "we could not find a usable";
UpdateData(FALSE);
return ;
}
UpdateData(TRUE);
/* 本地IP地址及其端口号 */
s_LocalAddr.sin_family = AF_INET;
s_LocalAddr.sin_addr.S_un.S_addr = inet_addr(m_EditLoIP);
s_LocalAddr.sin_port = htons(m_EditLoPort);
/* 远程IP地址及其端口号 */
s_RemoteAddr.sin_family = AF_INET;
s_RemoteAddr.sin_addr.S_un.S_addr = inet_addr(m_EditReIP);
s_RemoteAddr.sin_port = htons(m_EditRePort);
UDPSocket = socket(AF_INET, SOCK_DGRAM, 0);
if (UDPSocket == INVALID_SOCKET)
{
WSACleanup();
m_EditRec = "we could not socket";
UpdateData(FALSE);
return ;
}
err = bind(UDPSocket, (sockaddr *)&s_LocalAddr, sizeof(s_LocalAddr));
if (err == SOCKET_ERROR)
{
err = closesocket(UDPSocket);
WSACleanup();
m_EditRec = "bind is failure!";
UpdateData(FALSE);
return ;
}
err = WSAAsyncSelect(UDPSocket, m_hWnd, WM_RECDATA, FD_READ);
if (err == SOCKET_ERROR)
{
err = closesocket(UDPSocket);
WSACleanup();
m_EditRec = "set WSAAsyncSelect is failure!";
UpdateData(FALSE);
return ;
}
b_firstflg = FALSE;
err = GetCheckedRadioButton(IDC_RadioAck0, IDC_RadioAck1);
if (err == IDC_RadioAck0)
{
b_AckType = FALSE;
strcpy(acktype, "DTU Device");
}
else
{
b_AckType = TRUE;
strcpy(acktype, "Server");
}
sprintf(
buffer,
"%s link is successful!\r\nLocal Port is %d\r\nRemote Port is %d.",
acktype,
m_EditLoPort,
m_EditRePort
);
m_EditRec = buffer;
UpdateData(FALSE);
}
/**
** Send data to internet by UDP
**/
LRESULT CDTUDlg::SendTo(void)
{
int err;
err = sendto(
UDPSocket,
SendMsg.msg,
SendMsg.len,
0,
(const sockaddr *)&s_RemoteAddr,
sizeof(s_RemoteAddr)
);
if (err == SOCKET_ERROR)
{
m_EditRec = m_EditRec + "Send data is failure!";
UpdateData(FALSE);
return err;
}
return err;
}
/**
** Click "发送" button to send data by UDP
**/
void CDTUDlg::OnButtonSend()
{
// TODO: Add your control notification handler code here
int err;
UpdateData(TRUE);
SendMsg.len = m_EditSend.GetLength();
if (SendMsg.len == 0)
{
m_EditRec = "Don't send empty string!";
UpdateData(FALSE);
return ;
}
strcpy(SendMsg.msg, m_EditSend);
err = SendTo();
return ;
}
/**
** To accept receive data response
**/
LRESULT CDTUDlg::RecAck(void)
{
int err;
SendMsg.msg[0] = 0x00;
SendMsg.msg[1] = 0x0A;
SendMsg.msg[2] = RecMsg.msg[2];
SendMsg.msg[3] = RecMsg.msg[3];
SendMsg.msg[4] = RecMsg.msg[4];
SendMsg.msg[5] = RecMsg.msg[5];
SendMsg.msg[6] = RecMsg.msg[6];
SendMsg.msg[7] = RecMsg.msg[7];
SendMsg.msg[8] = RecMsg.msg[8];
if (b_AckType == FALSE)
SendMsg.msg[9] = 0x51;
else
SendMsg.msg[9] = 0x50;
SendMsg.len = 10;
err = SendTo();
return err;
}
/**
** Convert hex characters
**/
CString CDTUDlg::Hex(char ch)
{
CString result;
char buf[5] = {'\0'};
if ((unsigned char)ch < 16)
sprintf(buf, "0%x ", (unsigned char)ch);
else
sprintf(buf, "%2x ", (unsigned char)ch);
result = buf;
return result;
}
/**
** Check whether the data received correctly
**/
LRESULT CDTUDlg::RecDataCheck(void)
{
unsigned char temp;
static unsigned lastchar;
int i;
temp = (unsigned char)RecMsg.msg[10];
for (i = 11; i < (RecMsg.len - 1); i++)
{
if (temp == 0xFF)
temp = 0x00;
else
temp++;
if (temp != (unsigned char)RecMsg.msg[i])
{
m_EditInErrCnt++;
m_EditThisData = Hex(RecMsg.msg[i]);
m_EditLastData = Hex((char)temp);
}
temp = (unsigned char)RecMsg.msg[i];
}
if (b_firstflg == FALSE)
b_firstflg = TRUE;
else
{
if (lastchar != (unsigned char)RecMsg.msg[10])
{
m_EditOutErrCnt++;
m_EditThisData = Hex(RecMsg.msg[10]);
m_EditLastData = Hex((char)lastchar);
}
}
lastchar = (unsigned char)RecMsg.msg[RecMsg.len - 1];
if (lastchar == 0xFF)
lastchar = 0x00;
else
lastchar++;
return 0;
}
/**
** Handle receive data
** 下面的函数是我们在做一个项目测试时用的,你可以不要
**/
LRESULT CDTUDlg::RecHandle(void)
{
int err;
int i;
m_EditRec = "";
for (i = 0; i < RecMsg.len; i++)
{
//m_EditRec = m_EditRec + Hex(RecMsg.msg[i]);
m_EditRec = m_EditRec + RecMsg.msg[i];
}
m_EditByteCnt += RecMsg.len;
m_EditFrCnt++;
m_EditFrLen = RecMsg.len;
if (RecMsg.len >= 10)
{
switch (RecMsg.msg[9])
{
case 0x5A :
m_EditWorkFrCnt++;
if (((unsigned char)RecMsg.msg[0] & 0x80) == 0x80)
m_EditRepeatFrCnt++;
err = RecAck();
err = RecDataCheck();
break;
case 0x55 :
m_EditHearFrCnt++;
break;
default :
m_EditOtherFrCnt++;
break;
}
}
UpdateData(FALSE);
return 0;
}
/**
** Receive data by UDP protocol, and the function is triggered by winsock event
**/
LRESULT CDTUDlg::OnReadData(WPARAM wParam, LPARAM lParam)
{
int err = 0;
int sockaddrlen = 0;
sockaddrlen = sizeof(s_RemoteAddr);
switch (WSAGETSELECTEVENT(lParam)) /* get winsock event */
{
case FD_READ :
err = recvfrom(
UDPSocket, /* receive UDP data */
RecMsg.msg,
sizeof(RecMsg.msg),
0,
(sockaddr *)&s_RemoteAddr,
(int *)&sockaddrlen
);
if (err == SOCKET_ERROR) /* Is receive data right */
{
m_EditRec = m_EditRec +
"receive data is failure!";
UpdateData(FALSE);
return 0;
}
RecMsg.len = err;
err = RecHandle();
break;
default :
break;
}
return 0;
}
BOOL CDTUDlg::DestroyWindow()
{
// TODO: Add your specialized code here and/or call the base class
int err;
err = closesocket(UDPSocket);
WSACleanup();
return CDialog::DestroyWindow();
}
void CDTUDlg::OnButtonUnlink()
{
// TODO: Add your control notification handler code here
int err;
err = closesocket(UDPSocket);
WSACleanup();
m_EditRec = "Unlink the DTU device!";
UpdateData(FALSE);
return ;
}
void CDTUDlg::OnButtonRClr()
{
// TODO: Add your control notification handler code here
m_EditRec = "";
UpdateData(FALSE);
return ;
}
void CDTUDlg::OnButtonSClr()
{
// TODO: Add your control notification handler code here
m_EditSend = "";
UpdateData(FALSE);
return ;
}
void CDTUDlg::OnButtonMsgClr()
{
// TODO: Add your control notification handler code here
m_EditByteCnt = 0;
m_EditFrCnt = 0;
m_EditFrLen = 0;
UpdateData(FALSE);
return ;
}
void CDTUDlg::OnButtonWClr()
{
// TODO: Add your control notification handler code here
m_EditHearFrCnt = 0;
m_EditInErrCnt = 0;
m_EditOutErrCnt = 0;
m_EditOtherFrCnt = 0;
m_EditWorkFrCnt = 0;
m_EditRepeatFrCnt = 0;
m_EditThisData = "";
m_EditLastData = "";
UpdateData(FALSE);
return ;
}
那个静态文本框ID是IDC_EditSend，关联一个变量m_EditSend.
