tapisampledlg.cpp.svn-base

一个使用TAPI函数写的电话应用的Demo

// TAPISampleDlg.cpp : implementation file
//

#include "stdafx.h"
#include "TAPISample.h"
#include "TAPISampleDlg.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()

/////////////////////////////////////////////////////////////////////////////
// CTAPISampleDlg dialog

CTAPISampleDlg::CTAPISampleDlg(CWnd* pParent /*=NULL*/)
	: CDialog(CTAPISampleDlg::IDD, pParent)
{
	//{{AFX_DATA_INIT(CTAPISampleDlg)
		// NOTE: the ClassWizard will add member initialization here
	//}}AFX_DATA_INIT
	// Note that LoadIcon does not require a subsequent DestroyIcon in Win32
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CTAPISampleDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	//{{AFX_DATA_MAP(CTAPISampleDlg)
		// NOTE: the ClassWizard will add DDX and DDV calls here
	//}}AFX_DATA_MAP
}

BEGIN_MESSAGE_MAP(CTAPISampleDlg, CDialog)
	//{{AFX_MSG_MAP(CTAPISampleDlg)
	ON_WM_SYSCOMMAND()
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_BTNWAIT, OnBtnWait)
	ON_BN_CLICKED(IDC_BTNOPEN, OnBtnOpen)
	ON_BN_CLICKED(IDC_BTNDIAL, OnBtnDial)
	ON_BN_CLICKED(IDC_BTNCOMHANDLE, OnBtnComHandle)
	ON_BN_CLICKED(IDC_BTNREAD, OnBtnRead)
	ON_BN_CLICKED(IDC_BTNWRITE, OnBtnWrite)
	ON_BN_CLICKED(IDC_BTNREADCLEAR, OnBtnReadClear)
	ON_BN_CLICKED(IDC_BTNWRITECLEAR, OnBtnWriteClear)
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CTAPISampleDlg message handlers

BOOL CTAPISampleDlg::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
	
	m_hWaitForCallThread= NULL;
	m_hSerialHandle= NULL;
	m_bStopReadThread = true;
	m_hReadThread = NULL;

	GetDlgItem(IDC_BTNWAIT)->EnableWindow(false);
	GetDlgItem(IDC_BTNDIAL)->EnableWindow(false);
	GetDlgItem(IDC_BTNWRITE)->EnableWindow(false);
	GetDlgItem(IDC_BTNREAD)->EnableWindow(false);
	
	return TRUE;  // return TRUE  unless you set the focus to a control
}

void CTAPISampleDlg::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 CTAPISampleDlg::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 CTAPISampleDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}

void CTAPISampleDlg::OnBtnReadClear() 
{
	SetDlgItemText(IDC_EDTREAD,"");
	SetDlgItemText(IDC_EDTREADLEN,"");
}

void CTAPISampleDlg::OnBtnWriteClear() 
{
	SetDlgItemText(IDC_EDTWRITE,"");
	SetDlgItemText(IDC_EDTWRITELEN,"");
}

void CTAPISampleDlg::OnBtnOpen() 
{
	int nRet;
	CString cszText;
	char *szError;

	GetDlgItemText(IDC_BTNOPEN,cszText);

	if(cszText == "Open")
	{
		nRet = cCall.Open();
		if(nRet)
		{
			cCall.GetErrorString(nRet,szError);
			AfxMessageBox(szError,MB_ICONERROR|MB_OK);
			return;
		}
		SetDlgItemText(IDC_BTNOPEN,"Close");
		GetDlgItem(IDC_BTNWAIT)->EnableWindow(true);
		GetDlgItem(IDC_BTNDIAL)->EnableWindow(true);
	}
	else
	{
		nRet = cCall.Close();		
		if(nRet)
		{
			cCall.GetErrorString(nRet,szError);
			AfxMessageBox(szError,MB_ICONERROR|MB_OK);
			return;
		}
		SetDlgItemText(IDC_BTNOPEN,"Open");
		GetDlgItem(IDC_BTNWAIT)->EnableWindow(false);
		GetDlgItem(IDC_BTNDIAL)->EnableWindow(false);

		if(m_hWaitForCallThread)
		{
			TerminateThread(m_hWaitForCallThread,0);
			CloseHandle(m_hWaitForCallThread);
			m_hWaitForCallThread=NULL;
		}
	}
}


void CTAPISampleDlg::OnBtnWait() 
{// since the waiting function holds we'll put it in a thread
	if(m_hWaitForCallThread)
	{
		TerminateThread(m_hWaitForCallThread,0);
		CloseHandle(m_hWaitForCallThread);
		m_hWaitForCallThread=NULL;
	}
	m_hWaitForCallThread = CreateThread(NULL,0,WaitForCallThread,this,0,0);
	
	GetDlgItem(IDC_BTNWAIT)->EnableWindow(false); // making it disable
}

void CTAPISampleDlg::OnBtnDial() 
{
	CString cszText;
	char *szText;

	GetDlgItemText(IDC_EDTDIALNUMBER,cszText);
	
	int nRet = cCall.MakeOutgoingCall(cszText.GetBuffer(0));
	cszText.ReleaseBuffer();
		
	if(nRet)
	{
		cCall.GetErrorString(nRet,szText);
		AfxMessageBox(szText,MB_ICONERROR|MB_OK);
		return;
	}
	GetDlgItem(IDC_BTNCOMHANDLE)->EnableWindow(true);
}

void CTAPISampleDlg::OnBtnComHandle() 
{
	long lRet;
	CString cszText;
	char *szError;

	GetDlgItemText(IDC_BTNCOMHANDLE,cszText);

	if(cszText == "Get Handle")
	{
		m_hSerialHandle = cCall.GetHandle("comm/datamodem",&lRet);
		if(lRet)
		{
			m_hSerialHandle = NULL;
			cCall.GetErrorString(lRet,szError);
			AfxMessageBox(szError,MB_ICONERROR|MB_OK);
			return;
		}
		SetDlgItemText(IDC_BTNCOMHANDLE,"Close Handle");
		GetDlgItem(IDC_BTNWRITE)->EnableWindow(true);
		GetDlgItem(IDC_BTNREAD)->EnableWindow(true);
		SetDlgItemText(IDC_BTNREAD,"Read");
	}
	else
	{
		if(m_hReadThread)
		{
			m_bStopReadThread = true;
			Sleep(1000);
			TerminateThread(m_hReadThread,0);
			CloseHandle(m_hReadThread);
			m_hReadThread=NULL;
		}

		CloseHandle(m_hSerialHandle);
		m_hSerialHandle = NULL;

		SetDlgItemText(IDC_BTNCOMHANDLE,"Get Handle");
		GetDlgItem(IDC_BTNWRITE)->EnableWindow(false);
		GetDlgItem(IDC_BTNREAD)->EnableWindow(false);
		SetDlgItemText(IDC_BTNREAD,"Read");
	}
}

void CTAPISampleDlg::OnBtnRead() 
{
	CString cszText;

	GetDlgItemText(IDC_BTNREAD,cszText);

	if(cszText == "Read")
	{
		m_bStopReadThread = false;
		m_hReadThread = CreateThread(NULL,0,ReadThread,this,0,0);
		SetDlgItemText(IDC_BTNREAD,"Stop");
	}
	else
	{
		if(m_hReadThread)
		{
			m_bStopReadThread = true;
			Sleep(1000);
			TerminateThread(m_hReadThread,0);
			CloseHandle(m_hReadThread);
			m_hReadThread=NULL;
		}
		SetDlgItemText(IDC_BTNREAD,"Read");
	}
}

void CTAPISampleDlg::OnBtnWrite() 
{
	char *szBuff = (char*)malloc(512);

	DWORD dwWriteLen =0;
	int nRet;
	char *szText;
	CString cszText;

	OVERLAPPED ov;
	ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
	ov.Offset = 0;
	ov.OffsetHigh = 0;

	GetDlgItemText(IDC_EDTWRITE,szBuff,512);

	nRet = WriteFile(m_hSerialHandle,szBuff,strlen(szBuff),&dwWriteLen,&ov);
	if(!nRet)
	{
		if(!nRet)
		{
			nRet = GetLastError();
			if(nRet != ERROR_IO_PENDING)
			{
				cCall.GetErrorString(nRet,szText);
				AfxMessageBox(szText,MB_ICONERROR|MB_OK);
				free(szBuff);
				return;
			}
		}

		switch(WaitForSingleObject(ov.hEvent,INFINITE))
		{
		case WAIT_OBJECT_0:
			GetOverlappedResult(m_hSerialHandle, &ov, &dwWriteLen,FALSE);
			break;
		default:
			break;
		};
	}
	free(szBuff);

	SetDlgItemInt(IDC_EDTWRITELEN,GetDlgItemInt(IDC_EDTWRITELEN)+dwWriteLen);
}

DWORD WINAPI CTAPISampleDlg::WaitForCallThread(LPVOID lpVoid)
{
	CTAPISampleDlg *pcDlg = (CTAPISampleDlg *)lpVoid;
	
	char *szError;
	int nRet = pcDlg->cCall.GetIncomingCall();	
	if(nRet)
	{
		pcDlg->cCall.GetErrorString(nRet,szError);
		AfxMessageBox(szError,MB_ICONERROR|MB_OK);
		return nRet;
	}
	pcDlg->GetDlgItem(IDC_BTNWAIT)->EnableWindow(true);
	pcDlg->GetDlgItem(IDC_BTNCOMHANDLE)->EnableWindow(true);
	return 0;
}

DWORD WINAPI CTAPISampleDlg::ReadThread(LPVOID lpVoid)
{
	CTAPISampleDlg *pcDlg = (CTAPISampleDlg *)lpVoid;

	char *szBuff = (char*)malloc(512);

	DWORD dwReadLen;
	int nRet;
	char *szText;
	CString cszText;

	OVERLAPPED ov;
	ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
	ov.Offset = 0;
	ov.OffsetHigh = 0;

	for(;!pcDlg->m_bStopReadThread;)
	{
		nRet = ReadFile(pcDlg->m_hSerialHandle,szBuff,512,&dwReadLen,&ov);
		if(!nRet)
		{
			nRet = GetLastError();
			if(nRet != ERROR_IO_PENDING)
			{
				pcDlg->cCall.GetErrorString(nRet,szText);
				AfxMessageBox(szText,MB_ICONERROR|MB_OK);
				free(szBuff);
				return nRet;
			}
		}

		switch(WaitForSingleObject(ov.hEvent,INFINITE))
		{
		case WAIT_OBJECT_0:
			GetOverlappedResult(pcDlg->m_hSerialHandle, &ov, &dwReadLen,FALSE);
			break;
		default:
			break;
		};
		szBuff[dwReadLen] = 0;
		pcDlg->GetDlgItemText(IDC_EDTREAD,cszText);
		cszText += szBuff;
		pcDlg->SetDlgItemText(IDC_EDTREAD,cszText);
		pcDlg->SetDlgItemInt(IDC_EDTREADLEN,pcDlg->GetDlgItemInt(IDC_EDTREADLEN)+dwReadLen);
		((CEdit*)pcDlg->GetDlgItem(IDC_EDTREAD))->LineScroll(((CEdit*)pcDlg->GetDlgItem(IDC_EDTREAD))->GetLineCount());
	}
	free(szBuff);
	return 0;
}