scandlg.cpp

WinCe下串行通讯的实现

// ScanDlg.cpp : implementation file
//

#include "stdafx.h"
#include "Scan.h"
#include "ScanDlg.h"

#include <atlconv.h>
#include <stdio.h>

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/////////////////////////////////////////////////////////////////////////////
// CScanDlg dialog
CSerial Serial;

CScanDlg::CScanDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CScanDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CScanDlg)
	m_szContent = _T("");
	m_COM = -1;
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CScanDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CScanDlg)
	DDX_Text(pDX, IDC_EDIT_CONTENT, m_szContent);
	DDX_CBIndex(pDX, IDC_COMBO1, m_COM);
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CScanDlg, CDialog)
	//{{AFX_MSG_MAP(CScanDlg)
	ON_BN_CLICKED(IDC_BUTTON_READ, OnButtonRead)
	ON_BN_CLICKED(IDC_BUTTON_SEND, OnButtonSend)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CScanDlg message handlers

BOOL CScanDlg::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
	
	CenterWindow(GetDesktopWindow());	// center to the hpc screen

	// TODO: Add extra initialization here
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}



void CScanDlg::OnButtonRead() 
{
	UpdateData(TRUE);

	HANDLE hReadThread;
	DWORD dwThreadID;
 
	// 创建一个读端口线程.
	if (hReadThread = CreateThread (NULL,0,(LPTHREAD_START_ROUTINE)PortReadThread, this, 0, &dwThreadID))
	{
		CloseHandle (hReadThread);
	}
	else
	{
		::MessageBox (NULL, _T("不能创建一个读端口线程"), _T("Error"), MB_OK);
	}	

	UpdateData(FALSE);
}

void CScanDlg::OnButtonSend() 
{
	UpdateData(TRUE);

	HANDLE hReadThread;
	DWORD dwThreadID;
 
	// 创建一个读端口线程.
	if (hReadThread = CreateThread (NULL,0,(LPTHREAD_START_ROUTINE)PortSendThread, this, 0, &dwThreadID))
	{
		CloseHandle (hReadThread);
	}
	else
	{
		::MessageBox (NULL, _T("不能创建一个写端口线程"), _T("Error"), MB_OK);
	}		
	
	UpdateData(FALSE);
}

void PortReadThread(CScanDlg *dlg)
{
	dlg->GetDlgItem(IDC_BUTTON_READ)->EnableWindow(FALSE);
	dlg->GetDlgItem(IDC_BUTTON_SEND)->EnableWindow(FALSE);
	if (Serial.Open(dlg->m_COM+1,19200) )//打开端口
	{
		char data[1024];
#ifdef _UNICODE
		Serial.ReadData(data);
		USES_CONVERSION;
		dlg->m_szContent = A2W(data);
#else
		Serial.ReadData(data);
		dlg->m_szContent = data;
#endif
		Serial.PortClose();
	}
	else
	{
		AfxMessageBox(_T("Open Port error."));
	}

	dlg->GetDlgItem(IDC_BUTTON_READ)->EnableWindow(TRUE);
	dlg->GetDlgItem(IDC_BUTTON_SEND)->EnableWindow(TRUE);
	dlg->GetDlgItem(IDC_EDIT_CONTENT)->SetWindowText(dlg->m_szContent);
}

void PortSendThread(CScanDlg *dlg)
{
	dlg->GetDlgItem(IDC_BUTTON_READ)->EnableWindow(FALSE);
	dlg->GetDlgItem(IDC_BUTTON_SEND)->EnableWindow(FALSE);
	if (Serial.Open(dlg->m_COM+1,19200) )//打开端口
	{
#ifdef _UNICODE
		USES_CONVERSION;
		Serial.SendData(W2A(dlg->m_szContent),strlen(W2A(dlg->m_szContent)));
#else
		Serial.SendData((char*)(LPCTSTR)dlg->m_szContent,strlen((char*)(LPCTSTR)dlg->m_szContent));
#endif
		Serial.PortClose();
	}
	else
	{
		AfxMessageBox(_T("Open Port error."));
	}

	dlg->GetDlgItem(IDC_BUTTON_READ)->EnableWindow(TRUE);
	dlg->GetDlgItem(IDC_BUTTON_SEND)->EnableWindow(TRUE);
}