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// pc_pc_apiDlg.cpp : 实现文件
//
#include "stdafx.h"
#include "pc_pc_api.h"
#include "pc_pc_apiDlg.h"
#include ".\pc_pc_apidlg.h"
#include <strsafe.h>
#ifdef _DEBUG
#define new DEBUG_NEW
#endif
const CM_RECEIVE=WM_USER+100;// 自定义一个消息
OVERLAPPED tOverLaped={0};//线程函数使用的OVERLAPPED结构
OVERLAPPED wOverLaped={0};//写操作使用的OVERLAPPED结构
OVERLAPPED rOverLaped={0};//写操作使用的OVERLAPPED结构
BOOL IsFun=TRUE;// 线程是否运行
BOOL IsStop=FALSE;//数据是否发送完毕
DWORD ThreadFunction(LPVOID pParam)//线程函数
{
DWORD dwEvtMask,dwResult;
tOverLaped.hEvent=CreateEvent(NULL,TRUE,FALSE,NULL);//创建一个事件
while(IsFun)
{
WaitCommEvent(((Cpc_pc_apiDlg*)AfxGetMainWnd())->hCom,&dwEvtMask,&tOverLaped);//等待窗口事件
dwResult=WaitForSingleObject(tOverLaped.hEvent,100);//如果没有信号,延迟0.1秒
switch(dwResult)
{
case WAIT_OBJECT_0://对象有信号
switch(dwEvtMask)
{
case EV_RXCHAR://接收到数据
{
if(IsStop)//发送停止
{
IsStop=FALSE;//发送消息,由消息处理函数接收数据
::PostMessage(AfxGetMainWnd()->m_hWnd,CM_RECEIVE,0,(LPARAM)EV_RXCHAR);
}
break;
}
}
break;
}
}
return 0;
}
// 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()
// Cpc_pc_apiDlg 对话框
Cpc_pc_apiDlg::Cpc_pc_apiDlg(CWnd* pParent /*=NULL*/)
: CDialog(Cpc_pc_apiDlg::IDD, pParent)
, m_strReceive(_T(""))
, m_strSend(_T(""))
{
m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}
void Cpc_pc_apiDlg::DoDataExchange(CDataExchange* pDX)
{
CDialog::DoDataExchange(pDX);
DDX_Text(pDX, IDC_receive, m_strReceive);
DDX_Text(pDX, IDC_send, m_strSend);
}
BEGIN_MESSAGE_MAP(Cpc_pc_apiDlg, CDialog)
ON_WM_SYSCOMMAND()
ON_WM_PAINT()
ON_WM_QUERYDRAGICON()
ON_MESSAGE(CM_RECEIVE,OnRecieveData) //添加自定义信息
//}}AFX_MSG_MAP
ON_BN_CLICKED(IDOK, OnOk)
ON_BN_CLICKED(IDCANCEL, OnCancel)
END_MESSAGE_MAP()
// Cpc_pc_apiDlg 消息处理程序
LRESULT Cpc_pc_apiDlg::OnRecieveData(WPARAM wParam,LPARAM lParam)
{
DWORD res,factbyte;
memset(DataBuffer,0,1024); //初始化数据缓冲区
COMSTAT rst;
ClearCommError(hCom,&res,&rst); //清空串口错误标志,记录当前通信状态
rOverLaped.hEvent=CreateEvent(NULL,TRUE,FALSE,NULL); //创建一个事件对象
if(ReadFile(hCom,DataBuffer,rst.cbInQue,&factbyte,&rOverLaped))
{
DataBuffer[rst.cbInQue]=0;
IsStop=FALSE;
}
else
{
res=WaitForSingleObject(rOverLaped.hEvent,5000);
}
IsStop=FALSE;
m_strReceive+=DataBuffer;
UpdateData(false);
return true;
}
BOOL Cpc_pc_apiDlg::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
CSeriesPort();
return TRUE; // 除非设置了控件的焦点,否则返回 TRUE
}
void Cpc_pc_apiDlg::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 Cpc_pc_apiDlg::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 Cpc_pc_apiDlg::OnQueryDragIcon()
{
return static_cast<HCURSOR>(m_hIcon);
}
void Cpc_pc_apiDlg::OnOk()
{
// TODO: 在此添加控件通知处理程序代码
UpdateData(TRUE);
DWORD res;
DWORD factdata=0;
wOverLaped.hEvent=CreateEvent(NULL,TRUE,FALSE,NULL);//创建一个事件对象
IsStop=FALSE;
if(WriteFile(hCom,m_strSend,m_strSend.GetLength(),&factdata,&wOverLaped))//开始发送数据
{
IsStop=TRUE;
}
else
{
res=WaitForSingleObject(wOverLaped.hEvent,5000);//延时5秒,等待数据发送
if(WAIT_OBJECT_0==res)
{
IsStop=TRUE;
}
else
IsStop=FALSE;
}
}
void Cpc_pc_apiDlg::OnCancel()
{
// TODO: 在此添加控件通知处理程序代码
CloseHandle(hCom);
CDialog::OnCancel();
}
void Cpc_pc_apiDlg::CSeriesPort() //配置打开串口
{
hCom=CreateFile("COM1",GENERIC_READ|GENERIC_WRITE,0,NULL,OPEN_EXISTING,FILE_ATTRIBUTE_NORMAL|FILE_FLAG_OVERLAPPED,NULL);
//打开串口1 允许读写操作 独占方式 打开一个存在的串口 异步方式打开
if(hCom==INVALID_HANDLE_VALUE)
{
MessageBox("端口打开失败!","提示");
return;
}
SetupComm(hCom,1024,1024);//设置发送和接收缓冲区大小
//设置串口信息
DCB dcb;
GetCommState(hCom,&dcb);
dcb.BaudRate=9600;
dcb.fBinary=TRUE;
dcb.fParity=TRUE;
dcb.ByteSize=8;
dcb.Parity=ODDPARITY;
dcb.StopBits=ONESTOPBIT;
if(!SetCommState(hCom,&dcb))
{
MessageBox("掩码设置失败!","提示");
return;
}
if(!SetCommMask(hCom,EV_RXCHAR|EV_TXEMPTY))
{
MessageBox("掩码设置失败!","提示");
return;
}
DWORD param,dwThreadID;
hThread=CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)ThreadFunction,¶m,0,&dwThreadID);
if(hThread==INVALID_HANDLE_VALUE)
{
MessageBox("线程创建失败!","提示",64);
return;
}
IsFun=true;
}