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控件重绘函数/消息OnPaint,OnDraw,OnDrawItem,DrawItem的区别 - C/C++ - 清...
控件重绘函数/消息OnPaint,OnDraw,OnDrawItem,DrawItem的区别而OnPaint()是CWnd的类成员，同时负责响应WM_PAINT消息。OnDraw()是CVIEW的成员函数，并且没有响应消息的功能。这就是为什么你用VC成的程序...OnPaint()是CWnd的类成员，同时负责响应WM_...
Change key pair for ec2 instance
How do I change the key pair for my ec2 instance in AWS management console? I can stop the instance, I can create new key pair, but I don't see any link to modify the instance's key pair.
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EC2 Instance Cloning
Is it possible to clone a EC2 instance data and all?
7 Answers
7
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ListCtrl 重绘（Custom Draw） - C/C++ - 清泛网 - 专注C/C++及内核技术
...例如Owner Draw等）。这种容易来自于我们只需要处理一个消息（NM_CUSTOMDRAW），就可以让Windows为你干活了，你就不用被逼去处理＂重绘过程＂中所有的脏活了。
这篇文章的焦点是如何在一个LISTCTRL控件上使用Custom Draw消息。究其原...
Connect to Amazon EC2 file directory using Filezilla and SFTP
I have created an AWS EC2 Instance and I want to be able to upload files to the server directory using FileZilla in the simplest and most straightforward fashion possible.
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Android微信智能心跳方案 - 更多技术 - 清泛网 - 专注C/C++及内核技术
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1.主要目标
本方案的主要目标是，在尽量不影响用户收消息及时性的前提下，根据网络类型自适应的找出保活信令TCP连接的尽可能大的心跳间隔，从而达到减少安卓微信因心跳引起的空中信道资源消耗，减少心跳Server的负载，...
HTTPS setup in Amazon EC2
How do we enable HTTPS in Amazon EC2? Our site is working on HTTP.
8 Answers
8
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Using scp to copy a file to Amazon EC2 instance?
...to scp a file from Downloads (phpMyAdmin I downloaded online) to my Amazon EC2 instance.
15 Answers
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Find region from within an EC2 instance
... I tried to use it. I have the following code which seems to work though:
EC2_AVAIL_ZONE=`curl -s http://169.254.169.254/latest/meta-data/placement/availability-zone`
EC2_REGION="`echo \"$EC2_AVAIL_ZONE\" | sed 's/[a-z]$//'`"
Hope this helps.
EDIT: Improved sed based on comments
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MQTT与TCP的区别 - 创客硬件开发 - 清泛IT社区，为创新赋能！
...换时的网络中断。因此需要客户端和服务器端都能够保留消息收发状态，在网络恢复正常后继续发送；而且卫星链路带宽低（当然也有高带宽的），通信流量费用高昂；因此需要尽量节省传输的消息的流量开销；有些数据发送失...