#include "stdafx.h"
#include "CDlgComm.h"

#include "afxdialogex.h"
#include <resource.h>


// CDlgCommSettings 对话框

IMPLEMENT_DYNAMIC(CDlgComm, CDialog)

CDlgComm::CDlgComm(CWnd* pParent /*=nullptr*/)
	: CDialog(IDD_DLG_COMM, pParent)
{

}

CDlgComm::~CDlgComm()
{
}

void CDlgComm::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	DDX_Control(pDX, IDC_COMBO_COMM_ID, m_cmboxCommID);
	DDX_Control(pDX, IDC_COMBO_BAUD, m_cmboxBaud);
	DDX_Control(pDX, IDC_COMBO_DATA, m_cmboxData);
	DDX_Control(pDX, IDC_COMBO_STOP, m_cmboxStop);
	DDX_Control(pDX, IDC_COMBO_CHECK, m_cmboxCheck);
}


BEGIN_MESSAGE_MAP(CDlgComm, CDialog)
	ON_CBN_SELCHANGE(IDC_COMBO_COMM_ID, &CDlgComm::OnCbnSelchangeComboCommId)
	ON_CBN_SELCHANGE(IDC_COMBO_BAUD, &CDlgComm::OnCbnSelchangeComboBaud)
END_MESSAGE_MAP()


BOOL CDlgComm::OnInitDialog()
{
	CDialog::OnInitDialog();

	// TODO:  在此添加额外的初始化
	InitUI();

	return TRUE;  // return TRUE unless you set the focus to a control
				  // 异常: OCX 属性页应返回 FALSE
}


// CDlgComm消息处理程序
void CDlgComm::InitUI() {
	m_cmboxData.SetCurSel(0);
	m_cmboxStop.SetCurSel(0);
	m_cmboxCheck.SetCurSel(0);
	GetComList_256();
	int iBaud[5] = {9600,19200,38400,57600,115200};
	CString tmp;
	for (int i = 0; i < 5; i++) {
		tmp.Format("%d", iBaud[i]);
		m_cmboxBaud.AddString(tmp);
	}
	m_cmboxBaud.SetCurSel(0);
	n_iBaud = 9600;
}


void CDlgComm::GetComList_256()//获取可用com口支持到256个
{
	CString  strCom, strComOpen;
	int  nCom = 0;
	int  count = 0;
	HANDLE    hCom;

	m_cmboxCommID.ResetContent();
	do
	{
		nCom++;
		strCom.Format("COM%d", nCom);
		strComOpen.Format("\\\\.\\COM%d", nCom);
		hCom = CreateFile(strComOpen, GENERIC_READ | GENERIC_WRITE, 0, NULL,
			OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0);
		if (INVALID_HANDLE_VALUE == hCom)
		{
			DWORD error = ::GetLastError();//取得错误信息 
		}
		else
		{
			m_cmboxCommID.AddString(strCom);
			count++;
		}
		CloseHandle(hCom);
	} while (nCom < 256);

	m_cmboxCommID.SetCurSel(0);
	m_cmboxCommID.GetWindowTextA(n_strComm);
}


void CDlgComm::OnCbnSelchangeComboCommId()
{
	// TODO: 在此添加控件通知处理程序代码
	int iPos = m_cmboxCommID.GetCurSel();//当 前选中的行。
	m_cmboxCommID.GetLBText(iPos, n_strComm);
}


void CDlgComm::OnCbnSelchangeComboBaud()
{
	// TODO: 在此添加控件通知处理程序代码
	int iPos = m_cmboxBaud.GetCurSel();//当 前选中的行。
	CString strBaud;
	m_cmboxBaud.GetLBText(iPos, strBaud);
	n_iBaud = atoi(strBaud);
}