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Understanding NSRunLoop

...eady.". After doing so, it will then return to its loop, processing input from various sources, and "sleeping" if there is no work to do. That's a pretty high level description (trying to avoid too many details). EDIT An attempt to address the comment. I broke it into pieces. it means th...
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Saving image from PHP URL

I need to save an image from a PHP URL to my PC. Let's say I have a page, http://example.com/image.php , holding a single "flower" image, nothing else. How can I save this image from the URL with a new name (using PHP)? ...
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How to change column datatype from character to numeric in PostgreSQL 8.4

... The optional USING clause specifies how to compute the new column value from the old; if omitted, the default conversion is the same as an assignment cast from old data type to new. A USING clause must be provided if there is no implicit or assignment cast from old to new type. So this might wo...
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how to convert from int to char*?

..., particularly to older projects. Plenty of C++ games also still stay away from std::string. Going from int to std::string to char* isn't the same as int to char*. – Adambean Jan 25 '16 at 19:05 ...
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How do I change the root directory of an apache server? [closed]

...e document root of the Apache server? I basically want localhost to come from /users/spencer/projects directory instead of /var/www . ...
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NodeJS: Saving a base64-encoded image to disk

My Express app is receiving a base64-encoded PNG from the browser (generated from canvas with toDataURL() ) and writing it to a file. But the file isn't a valid image file, and the "file" utility simply identifies it as "data". ...
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How to call a parent method from child class in javascript?

...Class.prototype.myMethod.call(this) Same goes for calling a parent method from child class with arguments: ParentClass.prototype.myMethod.call(this, arg1, arg2, ..) * Hint: use apply() instead of call() to pass arguments as an array. ...
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Prevent the keyboard from displaying on activity start

...ng these to false should work though, as the idea is to get the focus away from the EditText boxes. – Protean Apr 25 '18 at 5:17 ...
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.NET: Which Exception to Throw When a Required Configuration Setting is Missing?

... there will never be any confusion regarding where the exception is coming from- the framework, or your application. The framework will never throw your custom exceptions. UPDATE: I agree with the comments, so I have changed the subclass to ConfigurationErrorsException from Exception. I think it...
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How to send a simple string between two programs using pipes?

...yfifo"; char buf[MAX_BUF]; /* open, read, and display the message from the FIFO */ fd = open(myfifo, O_RDONLY); read(fd, buf, MAX_BUF); printf("Received: %s\n", buf); close(fd); return 0; } Note: Error checking was omitted from the above code for simplicity. ...