0avdconfdlg.cpp

VC++视频开发实例集锦(包括“远程视频监控”"语音识别系统"等13个经典例子)

#include "stdafx.h"
#include "rtccore.h"

#include "AVDConf.h"
#include "AVDConfDlg.h"
#include "MakeCallDlg.h"
#include "incomingdlg.h"

#include "defines.h"

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


BSTR	g_bstrAddr;




class CAboutDlg : public CDialog
{
public:
	CAboutDlg();


	
	enum { IDD = IDD_ABOUTBOX };
	

	
	
	protected:
	virtual void DoDataExchange(CDataExchange* pDX);    
	


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()




CAVDConfDlg::CAVDConfDlg(CWnd* pParent )
	: CDialog(CAVDConfDlg::IDD, pParent)
{
	
	
	
	m_hIcon = AfxGetApp()->LoadIcon(IDR_MAINFRAME);
}

void CAVDConfDlg::DoDataExchange(CDataExchange* pDX)
{
	CDialog::DoDataExchange(pDX);
	
	DDX_Control(pDX, IDC_WHITEBOARD, m_cWhiteboard);
	DDX_Control(pDX, IDC_MESSAGING, m_cMessaging);
	DDX_Control(pDX, IDC_TUNING, m_cTuning);
 	DDX_Control(pDX, IDC_MAKECALL, m_cMakeCall);
 	DDX_Control(pDX, IDC_APPCALL, m_cAppCall);
	
}

BEGIN_MESSAGE_MAP(CAVDConfDlg, CDialog)
	
	ON_WM_PAINT()
	ON_WM_QUERYDRAGICON()
	ON_BN_CLICKED(IDC_MAKECALL, OnMakecall)
	ON_BN_CLICKED(IDC_APPCALL, OnAppcall)
	ON_BN_CLICKED(IDC_TUNING, OnTuning)
	ON_BN_CLICKED(IDC_MESSAGING, OnMessaging)
	ON_BN_CLICKED(IDM_ABOUTBOX, OnAboutbox)
	ON_BN_CLICKED(IDC_WHITEBOARD, OnWhiteboard)
	
END_MESSAGE_MAP()


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

	
	SetIcon(m_hIcon, TRUE);			
	SetIcon(m_hIcon, FALSE);		
	
	
	if (InitRTCClient() != S_OK)
	{
		
		MessageBox ( "Initialization Error" );
		m_cMakeCall.EnableWindow ( FALSE );
		m_cAppCall.EnableWindow ( FALSE );
		m_cMessaging.EnableWindow ( FALSE );
		m_cTuning.EnableWindow ( FALSE );
		m_cWhiteboard.EnableWindow ( FALSE );
	}
	
	return TRUE;  
}


void CAVDConfDlg::OnPaint() 
{
	if (IsIconic())
	{
		CPaintDC dc(this); 

		SendMessage(WM_ICONERASEBKGND, (WPARAM) dc.GetSafeHdc(), 0);

		
		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;

		
		dc.DrawIcon(x, y, m_hIcon);
	}
	else
	{
		CDialog::OnPaint();
	}
}


HCURSOR CAVDConfDlg::OnQueryDragIcon()
{
	return (HCURSOR) m_hIcon;
}


void CAVDConfDlg::OnMakecall() 
{
	MakeCallDlg cDlg;

	
	if (cDlg.DoModal() == IDOK)
	{
		/
		MakeCall (RTCST_PC_TO_PC, g_bstrAddr);
	}
}



void CAVDConfDlg::OnMessaging() 
{
 	MakeCallDlg cDlg;
 
	if (cDlg.DoModal() == IDOK)
 	{													 
		MakeCall (RTCST_IM, g_bstrAddr);
	}
}


void CAVDConfDlg::OnAppcall() 
{
	HRESULT	hr;
	VARIANT_BOOL	vbool = VARIANT_FALSE;

	m_pClient->get_IsT120AppletRunning(RTCTA_APPSHARING, &vbool);

	if (vbool == VARIANT_FALSE)
	{ 
		hr = m_pClient->StartT120Applet ( RTCTA_APPSHARING );
	}
}


void CAVDConfDlg::OnWhiteboard() 
{
	HRESULT	hr;
	VARIANT_BOOL	vbool = VARIANT_FALSE;

	m_pClient->get_IsT120AppletRunning(RTCTA_WHITEBOARD, &vbool);

	if (vbool == VARIANT_FALSE)
	{ 
		hr = m_pClient->StartT120Applet ( RTCTA_WHITEBOARD );
	}
}


HRESULT CAVDConfDlg::MakeCall(RTC_SESSION_TYPE enType, BSTR bstrURI)
{
    HRESULT hr;

	if (enType != RTCST_IM)
    {
        
		if ((m_AVDlg) && (m_AVDlg.GetState () != RTCSS_IDLE))
        {
			MessageBoxW (m_hWnd, L"An audio/video call is in progress!", NULL, MB_OK );
            return S_FALSE;
        }
    }

    IRTCSession * pSession = NULL;

    hr = m_pClient->CreateSession(enType, NULL, NULL, 0, &pSession);

    if (FAILED(hr))
    {
        return hr;
    }

    
    hr = pSession->AddParticipant(bstrURI, NULL, &m_Participant);

	if (FAILED(hr))
    {
        SAFE_RELEASE(pSession);
        return hr;
    }

    
    hr = AddSession(pSession, enType);
    
    if (FAILED(hr))
    {  
            
        return hr;
    }

    return S_OK;
}


HRESULT CAVDConfDlg::InitRTCClient()
{
	HRESULT hr;

	m_pClient = NULL;
	m_pEvents = NULL;
	
	hr = CoInitialize(NULL);

	if (FAILED(hr))
	{
		return hr;
	}

	hr = CoCreateInstance (CLSID_RTCClient, NULL,
		CLSCTX_INPROC_SERVER, IID_IRTCClient,
		(LPVOID *)&m_pClient);

	if (FAILED(hr))
	{
		return hr;
	}

	hr = m_pClient->Initialize();

	if (FAILED(hr))
	{
		SAFE_RELEASE(m_pClient);
		return hr;
	}

	m_pClient->SetPreferredMediaTypes ( RTCMT_ALL, VARIANT_TRUE );

	long lEventMask = RTCEF_SESSION_STATE_CHANGE |
					  RTCEF_MESSAGING |
					  RTCEF_MEDIA |
					  RTCEF_INTENSITY |
					  RTCEF_CLIENT;

	hr = m_pClient->put_EventFilter( lEventMask );

    if ( FAILED(hr) )
    {
        SAFE_RELEASE(m_pClient);
        return hr;
    }

    m_pEvents = new CRTCEvents;

    if (!m_pEvents)
    {
        SAFE_RELEASE(m_pClient);
        return hr;
    }

    hr = m_pEvents->Advise( m_pClient, m_hWnd );

    if ( FAILED(hr) )
    {
        SAFE_RELEASE(m_pClient);
        return hr;
    }

    
    hr = m_pClient->put_ListenForIncomingSessions(RTCLM_BOTH); 

	

    if ( FAILED(hr) )
    {
    
        SAFE_RELEASE(m_pClient);
        return hr;
    }

	
	if (m_AVDlg)
		m_AVDlg.SetState (RTCSS_IDLE);

	return S_OK;
}


LRESULT CAVDConfDlg::WindowProc(UINT message, WPARAM wParam, LPARAM lParam) 
{
	switch (message)
	{
	case WM_RTC_EVENT:
		OnRTCEvent (message, wParam, lParam);
		break;
	}
	return CDialog::WindowProc(message, wParam, lParam);
}


HRESULT CAVDConfDlg::OnRTCEvent(UINT message, WPARAM wParam, LPARAM lParam)
{
    IDispatch * pDisp = (IDispatch *)lParam;
    RTC_EVENT enEvent = (RTC_EVENT)wParam;
    HRESULT hr;

   
    switch ( wParam )
    {
        case RTCE_SESSION_STATE_CHANGE:
            {
                IRTCSessionStateChangeEvent * pEvent = NULL;
                
                
				hr = pDisp->QueryInterface( IID_IRTCSessionStateChangeEvent,
                                            (void **)&pEvent );

                if (SUCCEEDED(hr))
                {
                    OnRTCSessionStateChangeEvent(pEvent);
                    SAFE_RELEASE(pEvent);
                }              
            }
            break;

        case RTCE_MESSAGING:
            {
                IRTCMessagingEvent * pEvent = NULL;
                
                
                hr = pDisp->QueryInterface( IID_IRTCMessagingEvent,
                                            (void **)&pEvent );

                if (SUCCEEDED(hr))
                {
                    OnRTCMessagingEvent(pEvent);
                    SAFE_RELEASE(pEvent);
                }              
            }
            break;

        case RTCE_MEDIA:
            {
                IRTCMediaEvent * pEvent = NULL;

                
                hr = pDisp->QueryInterface( IID_IRTCMediaEvent,
                                            (void **)&pEvent );

                if (SUCCEEDED(hr))
                {
                    OnRTCMediaEvent(pEvent);
                    SAFE_RELEASE(pEvent);
                }
            }
            break;

        case RTCE_INTENSITY:
            {
                IRTCIntensityEvent * pEvent = NULL;

                
                hr = pDisp->QueryInterface( IID_IRTCIntensityEvent,
                                            (void **)&pEvent );

                if (SUCCEEDED(hr))
                {
                    OnRTCIntensityEvent(pEvent);
                    SAFE_RELEASE(pEvent);
                }
            }
            break;

        case RTCE_CLIENT:
            {
	                IRTCClientEvent * pEvent = NULL;

                
                hr = pDisp->QueryInterface( IID_IRTCClientEvent,
                                            (void **)&pEvent );

                if (SUCCEEDED(hr))
                {
                    OnRTCClientEvent(pEvent);
                    SAFE_RELEASE(pEvent);
                }
            }
            break;
    }

    
    SAFE_RELEASE(pDisp);

    return S_OK;
}








void CAVDConfDlg::OnTuning() 
{
	if (m_pClient)
		m_pClient->InvokeTuningWizard((OAHWND)m_hWnd);
}







void CAVDConfDlg::OnRTCSessionStateChangeEvent(IRTCSessionStateChangeEvent *pEvent)
{
    IRTCSession * pSession = NULL;
    RTC_SESSION_STATE enState;
    HRESULT hr;

    
	hr = pEvent->get_State(&enState);

    if (FAILED(hr))
    {
        
        return;
    }