dlgcal.cpp

串口通讯,采用异步方式,采用回调上传数据

// DlgCal.cpp : implementation file
//

#include "stdafx.h"
#include "comtest.h"
#include "DlgCal.h"
#include "ComTestDlg.h"

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

/////////////////////////////////////////////////////////////////////////////
// CDlgCal dialog


CDlgCal::CDlgCal(CWnd* pParent /*=NULL*/)
	: CDialog(CDlgCal::IDD, pParent)
{
	//{{AFX_DATA_INIT(CDlgCal)
	m_txt = _T("");
	m_value = _T("");
	//}}AFX_DATA_INIT
}


void CDlgCal::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CDlgCal)
	DDX_Text(pDX, IDC_DATA, m_txt);
	DDX_Text(pDX, IDC_VALUE, m_value);
	//}}AFX_DATA_MAP
}


BEGIN_MESSAGE_MAP(CDlgCal, CDialog)
	//{{AFX_MSG_MAP(CDlgCal)
	ON_BN_CLICKED(IDC_BTN_CAL, OnBtnCal)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CDlgCal message handlers

void CDlgCal::OnOK() 
{
	DestroyWindow();
	//	CDialog::OnOK();
}

void CDlgCal::PostNcDestroy() 
{
	CDialog::PostNcDestroy();
	delete this;
}

BOOL CDlgCal::OnInitDialog() 
{
	CDialog::OnInitDialog();
	CenterWindow();	

	((CComboBox*)(GetDlgItem(IDC_COMB_TYPE)))->SetCurSel(0);

	return TRUE;  // return TRUE unless you set the focus to a control
	              // EXCEPTION: OCX Property Pages should return FALSE
}

void CDlgCal::OnBtnCal() 
{
	UpdateData();	
	//得到空间
	int len=m_txt.GetLength();
	if(len==0) return;
	char* buf =new char[len+1];
	strcpy(buf,m_txt.operator LPCTSTR());
	len=CComTestDlg::ToHex(buf);
	if(len==0){
		delete [] buf;
		return;
	}
	PBYTE	pb=PBYTE(buf);
	//得到校验方式
	int type=((CComboBox*)(GetDlgItem(IDC_COMB_TYPE)))->GetCurSel();
	switch(type){
	case 0:{//求和校验
		BYTE	t=0;
		for(int i=0;i<len;i++) t+=pb[i];
		m_value.Format("%x",t);
		break;}
	case 1:{//求异或校验
		BYTE	t=pb[0];
		for(int i=1;i<len;i++) t^=pb[i];
		m_value.Format("%x",t);
		break;}
	case 2:{//求CRC16校验
		WORD t=CRC16(pb,len);
		m_value.Format("高位在前，低位在后：%x %x",HIBYTE(t),LOBYTE(t));
		
		break;}

	}
	delete [] buf;
	UpdateData(FALSE);	

}