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mfc 画圆角矩形 - C/C++ - 清泛网 - 专注C/C++及内核技术

...e = ::CreateRoundRectRgn( lprcRect->left, lprcRect->top, lprcRect->right + 1, lprcRect->bottom + 1, sizeRound.cx, sizeRound.cy ); if ( COLOR_TRANSPARENT == dwColorFrame && COLOR_TRANSPARENT != dwColorFill ) { // fill it only CBrush brushFill( dwColorFill ); FillRgn( pDC->GetSafe...
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VC CTreeCtrl复选框checkbox的使用方法 - C/C++ - 清泛网 - 专注C/C++及内核技术

VC CTreeCtrl复选框checkbox的使用方法1. 消息事件 (1)鼠标点击当前ITEM的CHECKBOX:引发NM_CLICK事件并传递TVHT_ONITEMSTATEICON。 (2)鼠标点击当前ITEM的TEXT:引发NM_CLICK...1. 消息事件 (1)鼠标点击当前ITEM的CHECKBOX:引发NM_CLICK事件并传递TVHT_ONITEM...
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常用Sql - 数据库(内核) - 清泛网 - 专注C/C++及内核技术

...索引Sql CREATE TABLE tablename ( `ID` decimal(18,0) NOT NULL COMMENT '递增ID', `FIELD_1` varchar(32) NOT NULL COMMENT '字段1', `FIELD_2` varchar(32) NOT NULL COMMENT '字段2', PRIMARY KEY (`ID`), KEY `FIEL...
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通过API获取IP信息、IP归属地 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...I接口:http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip=218.192.3.42 var remote_ip_info = {"ret":1,"start":-1,"end":-1,"country":"\u4e2d\u56fd","province":"\u5e7f\u4e1c","city":"\u5e7f\u5dde","district":"","isp":"","type":"","desc":""}; 注意:返回的结果不是一个标...
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mfc spin control 用法 - C++ UI - 清泛IT社区,为创新赋能!

...代码         if(pNMUpDown->iDelta == 1)        // 如果此值为1 , 说明点击了Spin的往下箭头         {...         }         else if(p...
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常用Sql - 爬虫/数据库 - 清泛IT社区,为创新赋能!

本帖最后由 zqp2013 于 2015-3-17 22:06 编辑 mysql:drop table if exists tablename; 不能写成 drop table tablename if exists tablename; mysql:建立索引Sql CREATE TABLE tablename (   `ID`                 &nbs...
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C++ protobuf使用入门实例 - C/C++ - 清泛网 - 专注C/C++及内核技术

...较后者高一个数量级,且完全的跨平台。使用步骤如下:1、定义一个 proto数据结构文件 protobuf 是结构化数据的系列化/反序列化解决方案,类似XML/JSON,但他的运行效率及压缩率均较后者高一个数量级,且完全的跨平台。使用...
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Passing parameters in rails redirect_to

... 174 Just append them to the options: redirect_to controller: 'thing', action: 'edit', id: 3, some...
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Why does C++ not allow inherited friendship?

... 10 Answers 10 Active ...
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Efficiency of purely functional programming

... According to Pippenger [1996], when comparing a Lisp system that is purely functional (and has strict evaluation semantics, not lazy) to one that can mutate data, an algorithm written for the impure Lisp that runs in O(n) can be translated to an alg...