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mfc spin control 用法 - C++ UI - 清泛IT社区,为创新赋能!

...bsp;       // TODO: 在此添加控件通知处理程序代码         if(pNMUpDown->iDelta == 1)        // 如果此值为1 , 说明点击了Spin往下箭头         {...  ...
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解决:InnerException 消息是“ValueType“System.Decimal”不能为 Null。...

格式化程序尝试对消息反序列化时引发异常: 尝试对参数 http://tempuri.org/ 进行反序列化时出错: xxx。InnerException 消息是“ValueType“System.Decimal”不能为 Null。”。有关详细信息,请参见 InnerException。 原因:WCF服务器端出错,抛出...
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Calculate MD5 checksum for a file

I'm using iTextSharp to read the text from a PDF file. However, there are times I cannot extract text, because the PDF file is only containing images. I download the same PDF files everyday, and I want to see if the PDF has been modified. If the text and modification date cannot be obtained, is a ...
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What do I need to read to understand how git works? [closed]

...uter-scientists/ http://www.loria.fr/~molli/pmwiki/uploads/Main/gitmanual.pdf Chap 7 Git From the Bottom Up share | improve this answer | follow | ...
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Download File Using Javascript/jQuery

...t: '_blank', href : 'http://localhost/directory/file.pdf'}); Whenever that link is clicked, it will download the file in a new tab/window. share | improve this answer ...
https://bbs.tsingfun.com/thread-1446-1-1.html 

MIT官方已升级至2.70本,中文网待测试并升级相关特性 - App Inventor 2 ...

... on macOS https://appinventor.mit.edu/ai2/ReleaseNotes 待合并支持大概有: 1、TextBox 新增了文本变更事件,这个一直是一个槽点,这次终于修复。 22个内置进度条组件。 3、其他组件优化及bug修复。 4、去掉Twitter 组件。 5、新...
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What size should apple-touch-icon.png be for iPad and iPhone?

... Use these sizes 57x57, 72x72, 114x114, 144x144 then do this in the head of your document: <link rel="apple-touch-icon" href="apple-touch-icon-iphone.png" /> <link rel="apple-touch-icon" sizes="72x72" href="apple-touch-icon-ipad.png" />...
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gif图处上传后不能动 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...MIT官方也是如此,官方英文社区也有类似问题,目前简单解决方案是使用“WEB浏览器”组件,设置网络url或本地路径,经过测试可以动。 可能也有拓展可以实现动图,后续如果有研究到了会一时间发出。 播放动图方...
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AppInventor做APP支持安卓14吗? - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

目前MIT最新本也是Android13,我们与mit同步更新。如果官方支持14我们会一时间跟进。 不过,根据用户反馈,蓝牙相关好像不兼容~ 有关安卓 14 补充:根据反馈,安卓14支持蓝牙功能,不过需要手动开启相关权限
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What do hjust and vjust do when making a plot using ggplot?

...he appendices of which are available at http://ggplot2.org/book/appendices.pdf. However, it is not quite that simple. hjust and vjust as described there are how it works in geom_text and theme_text (sometimes). One way to think of it is to think of a box around the text, and where the reference...