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ListCtrl 重绘(Custom Draw) - C/C++ - 清泛网 - 专注C/C++及内核技术

...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。究其原因,一部分是因为我已经在我...
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How to use Namespaces in Swift?

...lity, however, they do conflict, in the sense that your own code's MyClass wins, and you can't specify "No no, I mean the MyClass in the framework" — saying TheFramework.MyClass doesn't work (the compiler knows what you mean, but it says it can't find such a class in the framework). My experience...
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What's the difference between “Write-Host”, “Write-Output”, or “[console]::WriteLine”?

...Job [console]::WriteLine works but Write-Host will result in an error: The Win32 internal error "The handle is invalid" 0x6 occurred while setting character attributes for the console output buffer. Don't ask me why. – Gil Roitto Nov 3 '17 at 12:19 ...
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Should I use #define, enum or const?

...disadvantages of a single approach. I work in embedded systems so the following solution is based on the fact that integer and bitwise operators are fast, low memory & low in flash usage. Place the enum in a namespace to prevent the constants from polluting the global namespace. namespace Reco...
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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

...Line在国内的轮询策略 3、台湾(不使用GCM): 从IBG同事win和guang提供的测试数据中看到,台湾使用的策略跟国内的轮询策略类似。 2.3 微信 微信没有使用GCM,自己维护TCP长连接,使用固定心跳。 2.4心跳典型值 What...
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How to get users to read error messages?

...always miss them! No matter how hard you'll try... At one stage during the Win 95 UI testing before it was launched, MS carried out an experiment to read the UI (ed - it should be noted that the message explicitly stated in the context of 'Look under the chair'), with a $100 dollar bill taped to the...
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How slow are .NET exceptions?

...I wish to resolve a simple issue. 99% of the time the argument for not throwing exceptions revolves around them being slow while the other side claims (with benchmark test) that the speed is not the issue. I've read numerous blogs, articles, and posts pertaining one side or the other. So which is it...
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When do you use POST and when do you use GET?

... to provide the PUT and DELETE calls also. But, even if you are not following RESTful principles, it can be useful to think in terms of using GET for retrieving / viewing information and POST for creating / editing information. You should never use GET for an operation which alters data. If a se...
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Structs versus classes

...heap space than stack space, so putting things on the stack isn't always a win. Besides which, a list of struct-types and a list of class-types will be on the heap either way, so this is irrelevant in this case. Edit: I'm beginning to consider the term evil to be harmful. After all, making a class...
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Differences between dependencyManagement and dependencies in Maven

... the like, but that's not really complicated either - dependencyManagement wins out over dependencies at the parent level - but if have a question about that or imports, the Maven documentation is a little better). After reading all of the 'a', 'b', 'c' garbage on the Maven site and getting confus...