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How to change the opacity (alpha, transparency) of an element in a canvas element after it has been
Using the HTML5 <canvas> element, I would like to load an image file (PNG, JPEG, etc.), draw it to the canvas completely transparently, and then fade it in. I have figured out how to load the image and draw it to the canvas, but I don't know how to change its opacity once it as been drawn.
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How to stop tracking and ignore changes to a file in Git?
I have cloned a project that includes some .csproj files. I don't need/like my local csproj files being tracked by Git (or being brought up when creating a patch), but clearly they are needed in the project.
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How to center an element horizontally and vertically
I am trying to center my tabs content vertically, but when I add the CSS style display:inline-flex , the horizontal text-align disappears.
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Typedef function pointer?
I'm learning how to dynamically load DLL's but what I don't understand is this line
6 Answers
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Why can't code inside unit tests find bundle resources?
Some code I am unit testing needs to load a resource file. It contains the following line:
6 Answers
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How do I navigate in the results of Diff
When I do a Git diff, it shows the code with the diff and it looks great. But how do I go to the next page or the next document.
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How do I make and use a Queue in Objective-C?
... to use a queue data structure in my Objective-C program. In C++ I'd use the STL queue. What is the equivalent data structure in Objective-C? How do I push/pop items?
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How to .gitignore files recursively
I'm trying to avoid the following pattern in my .gitignore file.
4 Answers
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SQL select join: is it possible to prefix all columns as 'prefix.*'?
I'm wondering if this is possible in SQL. Say you have two tables A and B, and you do a select on table A and join on table B:
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How to get orientation-dependent height and width of the screen?
I'm trying to programmatically determine the current height and width of my application. I use this:
11 Answers
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