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m_lpAgoraObject = new CAgoraObject();
m_lpAgoraEngine = createAgoraRtcEngine();
RtcEngineContext ctx;

ctx.eventHandler = &m_EngineEventHandler;
ctx.appId = lpVendorKey;

m_lpAgoraEngine->initialize(ctx);

nRet = m_lpAgoraEngine->enableVideo();

nRet = m_lpAgoraEngine->setChannelProfile(CHANNEL_PROFILE_COMMUNICATION);
LPCSTR lpStreamInfo = "{"owner":true,"width":640,"height":480,"bitrate":500}";
nRet = m_lpAgoraEngine->joinChannel(lpDynamicKey, lpChannelName, lpStreamInfo, nUID);

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