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Draw on HTML5 Canvas using a mouse

... Here's the most straightforward way to create a drawing application with canvas: Attach a mousedown, mousemove, and mouseup event listener to the canvas DOM on mousedown, get the mouse coordinates, and use the moveTo() method to position your drawing cursor and the beginPath() m...
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指定组件的大小 · App Inventor 2 中文网

创建 Apps 首页 关于我们 关于我们 发布日志 服务条款 教育 中文教程 中文社区 反馈 我要反馈 指定...
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Meaning of Choreographer messages in Logcat [duplicate]

... Choreographer lets apps to connect themselves to the vsync, and properly time things to improve performance. Android view animations internally uses Choreographer for the same purpose: to properly time the animations and possibly improve perfor...
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How to post pictures to instagram using API

I am building a php application which needs to post the user uploaded picture directly to Instagram, but after a quick search i found that there is no such function in the API :( and it feels weird... because they should provide one. I am not sure if there is any other way (except the apps for andro...
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How to run eclipse in clean mode? what happens if we do so?

... [-t] [-f] [-W] [-R] [-n] [-g] [-h] [-b <bundle identifier>] [-a <application>] [filenames] [--args arguments] Help: Open opens files from a shell. By default, opens each file using the default application for that file. If the file is in the form of a URL, the file will be...
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Using Laravel Homestead: 'no input file specified'

I am new to using Laravel, and Homestead, and would appreciate any help or a point in the right direction. I have successfully been able to get to the "You have arrived" screen when I run "php artisan serve" but when I try to do the same thing via Vagrant, I get "no input file specified". My Homes...
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How do negated patterns work in .gitignore?

... This didn't work for me either: /apps/* !/apps/myApps/FluidTest/bin/ – Jarrod Smith Mar 27 '13 at 7:49 5 ...
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No identities were available - administrator request

I had problems while "archiving" my app. I think there are invalid profiles because of iPhone Update to 5.1 and XCode update to 4.2.2. ...
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How to specify HTTP error code?

... I'd like to centralize the creation of the error response in this way: app.get('/test', function(req, res){ throw {status: 500, message: 'detailed message'}; }); app.use(function (err, req, res, next) { res.status(err.status || 500).json({status: err.status, message: err.message}) }); So ...
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Android REST client, Sample?

...from Google) RESTDroid RoboSpice Retrofit Original Answer: Presenting my approach to having REST clients on Android. I do not claim it is the best though :) Also, note that this is what I came up with in response to my requirement. You might need to have more layers/add more complexity if your use...