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

...y = (rect.Height() - cyIcon + 1) / 2; } else { CRect rc(10, 10, 100, 80); //画圆角矩形 SIZE sizeRect = {3, 3}; DrawRoundRect(this->GetDC(), rc, sizeRect); } 这里直接使用的窗口DC,实际应用中为了防止出现闪屏现象,需要使用MemDC,调用方法...
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TokuMX vs. MongoDB 性能对比 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...个月的数据就需要接近40G,最近三个月的数据则需要接近100G。限于原有硬件环境,只能保存最近三个月的数据,但业务又需要保存至少一年的数据,所以必须另想办法。 最终我们选定的方案是TokuMX。它是一款开源的、高性能的...
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MFC中使用CSplitterWnd分割窗口后视图大小的问题 - C++ UI - 清泛IT社区,为创新赋能!

..._wndSplitterH的SetRowInfo属性函数,如:m_wndSplitterH.SetRowInfo(0,100,0);       (第一个参数:窗口索引,0代表第一个窗体;后面两个参数最大值、最小值) 2、如果你想子窗口的大小随着父窗口自动调节,则可以在子窗口...
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LINGO使用指南.doc - 脚本技术 - 清泛IT论坛,有思想、有深度

...在模型窗口中输入如下代码:min=2*x1+3*x2;x1+x2>=350;x1>=100;2*x1+x2<=600;然后点击工具条上的按钮    即可。... 线上版本:http://www.tsingfun.com/html/2016/algo_0603/1472.html
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怎么通过app inventor接收mqtt平台推送的长消息 - App Inventor 2 中文网 -...

...是有限制的,经过实际测试befa.com平台,base64文本大小约100KB以内的消息订阅可以正常接收,超过则无法接收。建议你自己的平台也进行一下测试,如果有限制,则要考虑源头压缩图片后再base64传输。 注:图片base64一般在原文件...
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How to check if a file is a valid image file?

...this code will raise an exception. Please consider that im.verify is about 100 times faster than performing the image manipulation (and I think that flip is one of the cheaper transformations). With this code you are going to verify a set of images at about 10 MBytes/sec with standard Pillow or 40 M...
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Send attachments with PHP Mail()?

...seems like a worse tradeoff. The alternative answers can do with less then 100 sloc. Dislike that the answer for "I want A" is answered with "No, use B its better". The other answers tell "A is done like this". – humanityANDpeace Mar 9 '14 at 17:21 ...
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How to set tbody height with overflow scroll

...:50px; overflow:auto; } thead, tbody tr { display:table; width:100%; table-layout:fixed;/* even columns width , fix width of table too*/ } thead { width: calc( 100% - 1em )/* scrollbar is average 1em/16px width, remove it from thead width */ } table { width:400px; } If tb...
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What is the quickest way to HTTP GET in Python?

... answered Apr 8 '13 at 1:30 user1001237user1001237 1...
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What are Runtime.getRuntime().totalMemory() and freeMemory()?

...dTotal(), (float)getAllocatedTotal() / (float)getTotal() * 100, getTotal(), isBounded()? "bounded" : "unbounded", isAtMaximumAllocation()? "maxed out" : "can grow", getUnallocated() ); out.printf("Used: %...