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        <title>IM 开发文档 im:windows:basics</title>
        <description></description>
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       <dc:date>2026-04-21T09:03:12+00:00</dc:date>
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        <title>IM 开发文档</title>
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    <item rdf:about="https://docs-im.easemob.com/im/windows/basics/buddy?rev=1554797050&amp;do=diff">
        <dc:format>text/html</dc:format>
        <dc:date>2019-04-09T08:04:10+00:00</dc:date>
        <title>好友管理</title>
        <link>https://docs-im.easemob.com/im/windows/basics/buddy?rev=1554797050&amp;do=diff</link>
        <description>好友管理

----------

获取好友列表
EMError error;
	std::vector&lt;std::string&gt; mContacts;
	mContacts = g_client-&gt;getContactManager().getContactsFromServer(error);
	string ret;
	if (error.mErrorCode == EMError::EM_NO_ERROR)
	{
		//通知界面刷新好友列表
	}
	else
	{
		//提示错误描述
		cout &lt;&lt; result-&gt;mDescription &lt;&lt; endl; 
	}</description>
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        <dc:date>2019-04-09T08:04:37+00:00</dc:date>
        <title>聊天室管理</title>
        <link>https://docs-im.easemob.com/im/windows/basics/chatroom?rev=1554797077&amp;do=diff</link>
        <description>聊天室管理

----------

环信聊天室模型支持最大成员数为5000，和群组不同，聊天室内成员离线后，服务器当监听到此成员不在线后不再会给此成员再发推送。

	*  支持最大成员5000；
	*  环信的聊天室内仅有 owner 和游客；</description>
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        <dc:date>2019-04-09T08:04:22+00:00</dc:date>
        <title>群组管理</title>
        <link>https://docs-im.easemob.com/im/windows/basics/group?rev=1554797062&amp;do=diff</link>
        <description>群组管理

----------

新建群组
EMError error;
	string subject = getStringAttrFromJson(json, &quot;subject&quot;);//群名称
	string description = getStringAttrFromJson(json, &quot;description&quot;);//群简介
	string welcomeMessage = getStringAttrFromJson(json, &quot;welcomeMessage&quot;);//欢迎辞
	string style = getStringAttrFromJson(json, &quot;style&quot;);//群类型
	string maxUserCount = getStringAttrFromJson(json, &quot;maxUserCount&quot;);//最大成员数
	stringstream stream;
	stream &lt;&lt; maxUserCount;
	int nMaxUserCount;
	stream &gt;&gt; nMaxUserCount;
	EMGroupSetting setting;…</description>
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        <dc:format>text/html</dc:format>
        <dc:date>2019-04-09T08:03:53+00:00</dc:date>
        <title>消息</title>
        <link>https://docs-im.easemob.com/im/windows/basics/message?rev=1554797033&amp;do=diff</link>
        <description>消息

----------

发送消息

发送文本、语音、图片、位置等消息（单聊/群聊/聊天室通用，只是一个参数的差别）。

发送文本消息
//创建消息体
	EMMessageBodyPtr body = EMTextMessageBodyPtr(new EMTextMessageBody(content.c_str()));

	CefStringUTF8 utf8(content);
	//聊天类型：单聊
	EMMessage::EMChatType type = EMMessage::SINGLE;
	if (isGoupChat.compare(&quot;groupchat&quot;) == 0)
	{
		if (roomType.compare(&quot;true&quot;) == 0)
		{
			type = EMMessage::CHATROOM;//聊天室
		}
		else
		{
			type = EMMessage::GROUP;//群聊
		}
	}
	//创建待发消息
	EMMessagePtr msg = EMMessage::createSendMessage(g_clien…</description>
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